eta/Post User’s Manual Version 1.8.1 Engineering Technology Associates, Inc 1133 E Maple Road, Suite 200 Troy, MI 48083-2896 Phone: +1 (248) 729 3010 Fax: +1 (248) 729 3020 Support: (800) 382 3362 Engineering Technology Associates, Inc., ETA, the ETA logo, and eta/Post are the registered trademarks of Engineering Technology Associates, Inc All other trademarks or names are the property of their respective owners Copyright © 1998-2014 Engineering Technology Associates, Inc All rights reserved TABLE OF CONTENTS TABLE OF CONTENTS TABLE OF CONTENTS ·········································································· I TABLE OF FIGURE ············································································ VII INTRODUCTION··················································································· Chapter STRUCTURAL OVERVIEW ······················································ 1.1 GENERAL OVERVIEW ·················································································· 1.2 MENU BAR ································································································· 1.3 ICON BAR ··································································································· 1.4 IDENTIFY NODE ························································································ 10 1.5 IDENTIFY ELEMENT ·················································································· 10 1.6 DISTANCE BETWEEN TWO NODES/POINTS ··················································· 10 1.7 ANGLE BETWEEN THREE NODES ································································ 11 1.8 ANGLE BETWEEN TWO LINES ····································································· 11 1.9 RADIUS BETWEEN THREE NODES ······························································· 11 1.10 DISPLAY OPTIONS ··················································································· 11 1.11 PRIORITY OF FUNCTIONS ········································································· 13 1.12 CONTROL WINDOW AND CONTROL OPTION ··············································· 13 1.13 FILE FORMAT ·························································································· 13 1.14 CONFIGURATION FILE ·············································································· 14 Chapter GETTING STARTED ······························································ 21 2.1 GETTING STARTED WITH D3PLOT FILE ························································ 21 2.2 SELECT NODE (ELEMENT AND PART) ·························································· 22 2.2.1 SELECT NODE····················································································· 23 2.2.2 SELECT ELEMENT ··············································································· 24 2.2.3 SELECT PART ····················································································· 24 2.3 INDEX FILE ······························································································· 25 2.4 REQUIREMENTS ························································································ 25 Chapter FILE MANAGER ··································································· 27 3.1 OPEN ······································································································· 27 3.2 IMPORT ···································································································· 28 3.3 EXPORT ··································································································· 29 3.4 COPY TO CLIPBOARD ················································································ 30 3.5 PRINT ······································································································ 30 3.5.1 PRINTER ···························································································· 31 3.5.2 PAPER ······························································································· 31 3.5.3 ORIENTATION ···················································································· 32 3.5.4 OPTIONS ···························································································· 32 3.5.5 NO OF COPIES ···················································································· 33 eta/Post 1.8.1 I TABLE OF CONTENTS 3.5.6 PRINT ································································································ 33 3.5.7 CANCEL ····························································································· 33 3.6 PRINT TO FILE ·························································································· 33 3.7 RELOAD ··································································································· 33 3.8 QUIT ········································································································ 34 Chapter EDIT MENU·········································································· 35 4.1 CREATE LINE ···························································································· 35 4.2 DELETE LINE ···························································································· 36 4.3 LABEL/ARROW ························································································· 36 4.4 BALLOON LABEL ······················································································ 37 4.5 ROTATE LIGHT ························································································· 39 4.6 LIGHT PROPERTY ······················································································ 39 4.7 MATERIAL PROPERTY ··············································································· 40 4.8 COLOR MAP······························································································ 42 4.9 PART ATTRIBUTES ···················································································· 43 4.10 ROTATE VIEW ························································································· 49 4.11 USER VIEW ····························································································· 50 4.12 BACKGROUND COLOR ············································································· 51 4.13 LANGUAGE SETTING················································································ 51 Chapter TOOL ·················································································· 53 5.1 SECTION CUT···························································································· 53 5.1.1 DEFINE CUT PLANE ············································································· 54 5.1.2 CLEAR SECTION CUT··········································································· 56 5.1.3 NORMAL VIEW ··················································································· 57 5.1.4 SECTION COLOR ················································································· 57 5.1.5 SECTION CUT OPTIONS ········································································ 57 5.1.6 SECTION VALUE CURVE ······································································ 58 5.1.7 SECTION CURVATURE CURVE ······························································ 59 5.1.8 MEASURE ARC LENGTH······································································· 60 5.1.9 SECTION COMPARISON ······································································· 60 5.1.10 MOVE SECTION BY MOUSE································································· 62 5.1.11 ANIMATE THE SECTION ····································································· 63 5.1.12 DISPLAY OPTIONS ············································································· 63 5.1.13 SECTION LINE POSITION ···································································· 64 5.1.14 SAVE SECTION ·················································································· 65 5.1.15 RECALL SECTION ·············································································· 65 5.2 CONSTRAINT MOTION ··············································································· 65 5.3 MIRROR RESULT BY XYZ ··········································································· 66 5.4 FACE REFLECTION ···················································································· 68 5.5 ACTIVE WINDOW ······················································································ 71 5.6 NODE TRACE ···························································································· 71 5.7 START RECORD MACRO FILE ······································································ 73 5.8 PART VALUE CURVE ················································································· 73 5.9 NODAL VALUE CURVE··············································································· 74 II eta/Post 1.8.1 TABLE OF CONTENTS 5.10 ELEMENT VALUE CURVE·········································································· 75 5.11 NODAL DISPLACEMENT CURVE ································································ 76 5.12 DISTANCE CURVE ···················································································· 78 5.13 SCREEN CURVE OPERATION ····································································· 79 5.14 PART DISTANCE ······················································································ 81 5.15 PART INTERFERENCE CHECK ···································································· 83 5.16 EXPORT BOUNDARY LINE ········································································ 84 5.17 EXPORT PRESSURE MAGNITUDE ······························································· 84 5.18 MAX PRESSURE OVER TIME ······································································ 85 5.19 UNIT CONVERSION ·················································································· 85 5.20 MODEL SUMMARY··················································································· 86 Chapter APPLICATION ······································································ 87 6.1 SHOW BLANK PART ONLY ········································································· 87 6.2 SHOW TOOLS WIRE FRAME ········································································ 87 6.3 SHOW TOOLS TRANSPARENCY ··································································· 87 6.4 DRAWBEAD FORCE ··················································································· 88 6.5 MULTIPLE STAGE CONTROL ······································································· 88 6.6 TOOL TRAVEL ·························································································· 90 6.7 FATIGUE ·································································································· 91 6.8 PAINT BLANK ··························································································· 92 6.8.1 TEXTURE MANAGER ··········································································· 93 6.8.2 SELECT TEXTURE ··············································································· 94 6.8.3 SELECT MAPPING STYLE ····································································· 94 6.8.4 DEFINE MAPPING PLANE ····································································· 94 6.8.5 PAINT ································································································ 94 6.8.6 ERASE ······························································································· 94 6.8.7 PAN ··································································································· 95 6.8.8 ROTATE ····························································································· 95 6.8.9 SIZE ·································································································· 95 6.9 IRONING RATE ·························································································· 95 6.10 IMPORT COLORBAR SETTING ···································································· 95 6.11 EXPORT COLORBAR SETTING ··································································· 96 6.12 TONNAGE PREDICTION ············································································ 96 6.13 CURVATURE ··························································································· 98 6.14 WRINKLING AMPLIFIER ·········································································· 101 6.15 SPRINGBACK DISTANCE ·········································································· 102 6.16 POINT GAUGE CHECK ··········································································· 103 6.17 EDGE STRETCH ······················································································ 106 Chapter OPTION ·············································································· 109 7.1 AXIS (toggle) ····························································································· 109 7.2 TITLE (toggle) ··························································································· 110 7.3 COLOR BAR (toggle)··················································································· 110 7.4 MAX-MIN MARKER (toggle) ········································································ 110 7.5 MAX-MIN BALLOON TITLE (toggle)······························································ 110 eta/Post 1.8.1 III TABLE OF CONTENTS 7.6 LOGO (toggle) ··························································································· 110 7.7 NORMAL COLOR (toggle) ············································································ 110 7.8 BOUNDARY LINE ····················································································· 111 7.9 ELEM OUTLINE ························································································ 111 7.10 ELEM ORIENTATION ··············································································· 111 7.11 ACTIVE CONTOUR RANGE ······································································· 111 7.12 OVERALL CONTOUR RANGE ···································································· 111 7.13 DEFINE ROTATE CENTER ········································································· 112 7.14 DISPLAY GRAPH ON SCREEN ··································································· 112 7.15 APPLY VPG LAYOUT ··············································································· 112 7.16 APPLY SECOND RENDER ········································································· 112 7.17 APPLY LOCAL LIGHT ·············································································· 112 7.18 APPLY MOUSE TRACKING ······································································· 112 7.19 APPLY MODEL CONFIGURATION ······························································ 112 7.20 APPLY FRAME DESCRIPTION···································································· 112 7.21 APPLY CONTINUOUS COLORBAR ····························································· 113 7.22 APPLY BLANK MATERIAL COLOR····························································· 113 7.23 DISPLAY NODAL CONSTRAINT ································································· 114 7.24 EXPORT CONTOUR WITH POSITION ·························································· 114 7.25 EDIT DEFAULT CONFIG ··········································································· 114 Chapter POSTPROCESS ···································································· 117 8.1 UNDEFORM ····························································································· 118 8.2 DEFORM·································································································· 118 8.2.1 DEFORM OPERATION ········································································· 118 8.2.2 FRAME OPERATION············································································ 119 8.2.3 ANIMATION OPERATION ···································································· 120 8.3 CONTOUR································································································ 121 8.3.1 CURRENT COMPONENT ······································································ 123 8.3.2 LAYER ······························································································ 125 8.3.3 LOCAL ······························································································ 125 8.3.4 REFERENCE FRAME ··········································································· 125 8.3.5 ELEMENT RESULT·············································································· 125 8.3.6 INCREMENT ······················································································ 125 8.3.7 UNDEFORM ······················································································· 125 8.3.8 ISO SURFACE····················································································· 127 8.3.9 ACTIVE PART ···················································································· 128 8.3.10 CONTOUR SETTING ·········································································· 128 8.3.11 USER-DEFINED CONTOUR ································································· 133 8.3.12 EXPORT CONTOUR LINE···································································· 134 8.3.13 EXPORT CONTOUR VALUE ································································ 134 8.3.14 LIST VALUE ····················································································· 134 8.4 VECTOR ·································································································· 139 8.4.1 SELECT COMPONENT ········································································· 140 8.4.2 BY ELEMENT SIZE ·············································································· 141 IV eta/Post 1.8.1 TABLE OF CONTENTS 8.4.3 SCALE FACTOR·················································································· 141 8.5 TOOL WEAR ···························································································· 141 8.5.1 TOOL/BLANK DEFINITION ··································································· 142 8.5.2 ABRASIVE WEAR PARAM···································································· 142 8.5.3 OPTION ····························································································· 144 8.5.4 RESULT ···························································································· 146 8.6 FLD ········································································································ 148 8.6.1 LAYER ······························································································ 149 8.6.2 FLD CURVE OPTION ··········································································· 150 8.6.3 EDIT FLD WINDOW ············································································ 153 8.6.4 EFLD ································································································ 154 8.6.5 FLD REVERSED MAPPING ··································································· 156 8.6.6 EXPORT VRML FILE ··········································································· 156 8.6.7 FLD PATH ························································································· 156 8.6.8 FLD REGION ······················································································ 156 8.7 THICKNESS ····························································································· 157 8.8 MAJOR AND MINOR STRAIN ······································································ 160 8.9 IN-PLANE STRAIN····················································································· 160 8.10 BLANK/TOOL DISTANCE·········································································· 161 8.11 CIRCULAR GRID ····················································································· 164 8.12 SKID MARK ···························································································· 165 8.13 BLANK OUTLINE ···················································································· 167 8.14 EDGE MOVEMENT ·················································································· 169 8.15 DEFECT DETECTION················································································ 172 8.16 BLANK DISPLACEMENT ·········································································· 174 8.17 FORMABILITY INDEX ·············································································· 176 Chapter GRAPH ··············································································· 179 9.1 START UP ································································································ 179 9.2 LOAD GRAPH DATA FILE ·········································································· 180 9.2.1 AIRBAG STATISTICS (ABSTAT) ···························································· 181 9.2.2 BOUNDARY NODAL FORCES (BNDOUT) ················································ 182 9.2.3 DEFORMED GEOMETRY (DEFGEO) ······················································· 182 9.2.4 DISCRETE ELEMENTS (DEFORC) ·························································· 182 9.2.5 ELEMENT DATA (ELOUT) ···································································· 182 9.2.6 GEOMETRIES CONTACT ENTITIES (GCEOUT)········································· 182 9.2.7 GLOBAL DATA (GLSTAT) ···································································· 183 9.2.8 JOINT FORCE FILE (JNTFORC) ······························································ 183 9.2.9 MATERIAL ENERGIES (MATSUM) ························································· 184 9.2.10 NODAL INTERFACE FORCES (NCFORC) ··············································· 184 9.2.11 NODAL FORCE GROUPS (NODFOR) ····················································· 185 9.2.12 NODAL POINT DATA (NODOUT) ························································· 185 9.2.13 RIGID BODY DATA (RBDOUT) ···························································· 185 9.2.14 RESULTANT INTERFACE FORCES (RCFORC) ········································ 186 9.2.15 RIGID WALL FORCES (RWFORC) ························································· 186 eta/Post 1.8.1 V TABLE OF CONTENTS 9.2.16 SEATBELT OUTPUT (SBTOUT) ···························································· 187 9.2.17 CROSS SECTION FORCE (SECFORC)····················································· 187 9.2.18 SLIDING INTERFACE ENERGY (SLEOUT)·············································· 187 9.2.19 SPC REACTION FORCES (SPCFORC) ····················································· 187 9.2.20 SUBSYSTEM STATISTICS (SSSTAT) ····················································· 188 9.2.21 SPOTWELD RIVET FORCES (SWFORC) ················································· 188 9.2.22 TEMPERATURE OUTPUT (TPRINT) ······················································ 189 9.3 GRAPH CONTROL WINDOW ······································································· 189 9.4 GRAPH OPERATION ·················································································· 191 9.4.1 PRINT ······························································································· 192 9.4.2 CLIPBOARD ······················································································· 192 9.4.3 EXPORT ···························································································· 192 9.4.4 ATTRIBUTE ······················································································· 192 9.4.5 OPERATION ······················································································· 197 9.4.6 SAVE ································································································ 205 APPENDIX A INDEX FILE FORMAT ····················································· 207 INTRODUCTION ···························································································· 207 HEADER ······································································································ 207 *DATABASE_FILE ························································································· 207 *DATABASE_STATISTICS ··············································································· 207 *DATABASE_UNIT ························································································ 208 *PART_DF ···································································································· 208 *DEFINE_FLD ······························································································· 209 *DRAWBEAD_DF ·························································································· 210 *DRAWBEAD_VARIABLE_DF·········································································· 210 *DEFINE_POPLINE ························································································ 211 *DEFINE_LINE3D ·························································································· 211 *CASE_MULTIPLE ························································································· 212 *DEFINE_TRIM ····························································································· 212 *DEFINE_COARSEN ······················································································· 213 *D3PLOT_DF································································································· 213 *RCFORC_PATH ···························································································· 214 *RBDOUT_PATH ··························································································· 214 *BOUNDARY_SPC_NODE_DF ·········································································· 214 *END ··········································································································· 215 APPENDIX B HARDWARE AND SOFTWARE REQUIREMENTS ··············· 217 APPENDIX C eta/Post SHORTCUT KEY ················································· 219 FINAL NOTES ··················································································· 221 VI eta/Post 1.8.1 TABLE OF FIGURE TABLE OF FIGURE Figure 1.1.1 eta/Post interface window Figure 1.3.1 PART ON/OFF Window Figure 1.3.2 General POSTPROCESS Icons Figure 1.3.3 Special icons for eta/DYNAFORM results 10 Figure 1.4.1 Identify Node Control Option Window 10 Figure 1.6.1 Measure distance Control Option window 11 Figure 1.10.1 Display Options 12 Figure 2.1.1 Select File Window 22 Figure 2.2.1 Select Node window 23 Figure 2.2.2 Select Element window 24 Figure 2.2.3 Select Part window 24 Figure 2.3.1 Select idx File Window 25 Figure 3.1.1 Open File Dialog 28 Figure 3.2.1 Import File window 29 Figure 3.3.1 Export file dialog box 30 Figure 3.5.1 Print window 31 Figure 3.5.2 Select Print Area Dialogue Box 32 Figure 3.6.1 Print to File Window 33 Figure 4.1.1 Create Line Control window 35 Figure 4.3.1 Label and Arrow Control Option Window 37 Figure 4.4.1 Balloon Label Control Option Window 38 Figure 4.6.1 Light Property Control Option Window 39 Figure 4.7.1 Material Property Control Window 41 Figure 4.7.2 Light Source Property Control Window 41 Figure 4.8.1 Color Map Control window 42 Figure 4.8.2 Part Color Control window 42 Figure 4.9.1 Part Attributes control window (Part Color) 44 Figure 4.9.2 Part Attributes control window (Part Material) 45 Figure 4.9.3 Part Attributes control window (Transparency) 46 Figure 4.9.4 Part Attributes control window (Wire Frame) 47 Figure 4.9.5 Part Attributes control window (No Contour) 48 eta/Post 1.8.1 VII TABLE OF FIGURE Figure 4.10.1 User Define Rotate View dialog box 49 Figure 4.11.1 User View dialog box 50 Figure 4.11.2 View Name dialog box 50 Figure 4.12.1 Background Color GUI window and Color Palette 51 Figure 4.13.1 System Language Setting Control Window 51 Figure 5.1.1 Section Cut Operation 54 Figure 5.1.2 Define Cut Plane 55 Figure 5.1.3 Section Cut Operation 56 Figure 5.1.4 Section Cut Option 57 Figure 5.1.5 ARC FIT 58 Figure 5.1.6 Section Value Curve 59 Figure 5.1.7 Section Curvature Curve 59 Figure 5.1.8 Measure Arc Length 60 Figure 5.1.9 Section Comparison 61 Figure 5.1.10 Deviation Contour Plot between two sections 62 Figure 5.1.11 An Example for PARTIAL MODEL display 64 Figure 5.1.12 An Example for PARTIAL MODEL WITH WIREFRAME display 64 Figure 5.2.1 Constraint Motion Dialog Window 65 Figure 5.2.2 Constraint Motion Dialog Window 66 Figure 5.3.1 Mirror Result Control Option Window 66 Figure 5.3.2 Example for analysis result of a quarter of the model 67 Figure 5.3.3 Mirror result along YZ Plane 67 Figure 5.4.1 Face Reflection Control Window 68 Figure 5.4.2 Face Reflection Result 69 Figure 5.4.3 Surface deflect detected from light strip 70 Figure 5.5.1 Define Active Window Control Window 71 Figure 5.6.1 Select Node Control Window 72 Figure 5.6.2 Node Trace 72 Figure 5.7.1 Save Macro File 73 Figure 5.8.1 Select Part Control Option 74 Figure 5.8.2 A Typical Thickness-Time History Curve 74 Figure 5.9.1 Select Node Control Window 75 Figure 5.9.2 Node Contour Result History Curve 75 Figure 5.10.1 An Example of ELEMENT VALUE CURVE 76 Figure 5.11.1 User Select Control Window 77 Figure 5.11.2 An Example of Node Displacement Curve 78 VIII eta/Post 1.8.1 Appendix A INDEX FILE FORMAT APPENDIX A INDEX FILE FORMAT 2011.7 Version INTRODUCTION Like the format of LS-DYNA input deck, Index file uses keyword input, which provides a flexible and logically organized database that is simple to understand Some of the keyword cards in Index files are the same as that in LS-DYNA, such as *MAT, *SECTION, *DEFINE_CURVE, etc The formats below are unique in index files HEADER Generally, header contains the following two comments: $ eta/DYNAFORM index file (creation date) $ KEYWORD VERSION (version number of index file index) For example, $ eta/DYNAFORM Index File February 19, 2008 at 12:00:44 $ KEYWORD VERSION 02 *DATABASE_FILE Purpose: Specify the database file name of the index file Card Format Card Variable FILENAME Type C Default none VARIABLE DESCRIPTION FILENAME File name of database, up to 80 characters *DATABASE_STATISTICS Purpose: Statistics of the database Card Format eta/Post 1.8.1 207 INDEX FILE FORMAT Card1 Appendix A Variable NPRT NND NEL NLN NSRF Type I I I I I Default 0 0 VARIABLE DESCRIPTION NPRT Number of parts NND Number of nodes NEL Number of elements NLN Number of lines NSRF Number of surfaces *DATABASE_UNIT Purpose: Specify the unit system Card Format Card 1 3-8 Variable NUNT DESCRIPTION Type I C Default none VARIABLE DESCRIPTION NUNT Unit system: EQ 0: MM, TON, SEC, N EQ 1: MM, G, MSEC, N EQ 2: MM, KG, MSEC, KN EQ 3: M, KG, SEC, N DESCRIPTION Description of the unit system *PART_DF Purpose: Supplement some attributes of part, i.e., material information, material properties, FLC information, etc Input is terminated when a “*” card is found Card Format Card Variable 208 1–4 PARTNAME 5-8 TOOLNAME eta/Post 1.8.1 Appendix A INDEX FILE FORMAT Type C C Default None none Card 2 Variable PID SECID MID FLDID COLOR Type I I I I I Default none none none none VARIABLE DESCRIPTION PARTNAME Name of part TOOLNAME Name of tool of part PID Part identification must be identical with that in dyn file SECID Section identification defined in *SECTION MID Material identification defined in *MAT FLDID FLD ID defined in *DEFINE_FLD COLOR RGB color of part (r + b