Finite element modeling of hybrid fiber ECC targets subjected to impact and blast
Finite element modeling of hybrid fiber ECC targets subjected to impact and blast
... study The objective of this research is to study the behaviors of hybrid- fiber ECC targets subjected to impact and blast loading and to evaluate the potential of hybrid- fiber ECC as protective ... FINITE ELEMENT MODELING OF HYBRID- FIBER ECC TARGETS SUBJECTED TO IMPACT AND BLAST LEE SIEW CHIN (B Eng (Hons), UTM) A THESIS SUBMITTED F...
Patient specific finite element modeling of the human lumbar motion segment
... 5.2 The effect of Poisson’s ratio of the disc nucleus on the axial stiffness of the lumbar motion segment 60 Fig 5.3 The effect of Young’s Modulus of the disc nucleus on the axial stiffness of the ... forms of spinal pathologies Patient- specificity of a finite element model of the lumbar spine in both geometry and material property proves cruc...
Báo cáo khoa học: "Gas exchange and water relations of 3 sizes of containerized Picea mariana seedlings subjected to atmospheric and edaphic water stress under controlled conditions" pps
... Planters’ Notes 34 , 33 -39 Macdonald SE, Lieffers VJ (1990) Photosynthesis, water relations, and foliar nitrogen of Picea mariana and Larix laricina from drained and undrained peatlands Can J For ... respect to water flux, and the resulting negative effects seedling water relations and photosynthesis, we undertook a controlled environment study using container...
finite element analysis of pulsed
... are first conducted to verify the finite element analysis of melting and solidification Results of finite element analysis are compared with exact solutions of solidification and melting problems given ... for the elements involved in phase change are computed by the method of element removal and reactivation and the use of a new initial temperature at T s to calculate the stre...
finite element analysis of structural steelwork beam to column bolted connections 2001
... apportioned to material strain hardening and the remaining 20% to dispersal into the beam web Test E3 failed at a connection moment of 290 kNm due to thread stripping of both the bolts and nuts local to ... 1.34 Column flange bending E5 147 kN 253 kN 1.72 Column flange bending Table - Full Scale Test Results Finite Element Model MYSTRO and LUSAS FEA software was used for...
Báo cáo nghiên cứu khoa học: "FINITE ELEMENT ANALYSIS OF ELASTO-PLASTIC BOUNDARY FOR SOME STRUCTURE PROBLEMS" pot
... (mm) Fig Uniform load – displacement curves for meshes M1, M2, M3 and Owen’s FE Table Distribution of plastic layers of some sections at elements with various uniform load of mesh M2 Uniform load ... no account of transverse shear deformation The governing equation: [Kf + Ks]ϕ - f = (8) where, the submatrices of Kf and Ks and subvectors of f for element e Element stiffne...
finite element analysis of fracture in concrete structures state of the art
... incorporate the model into the finite element analysis is by employing interface elements The first interface element was formulated by FINITE ELEMENT ANALYSIS OF FRACTURE IN CONCRETE STRUCTURES ... CHAPTER 1—INTRODUCTION In this report, the state -of- the- art in finite element modeling of concrete is viewed from a fracture mechanics perspec...
Development of a realistic finite element model of human head and its applications to head injuries
... facial bones and cranial bones as well as intracranial injuries are evaluated based on the tolerance limits of the biomechanical parameters General trend of maximum intracranial biomechanical parameters ... thanks to all of my colleagues and my best friends Arpan Gupta, Guo Shifeng, Zhu Jianhua, Zhuang Han, Liu Yilin, Kyrin Liong, Saeid Arabnejad Khanooki, Shahrokh Sepehri Rahna...
An integrated finite element analysis of CFRP laminates from low velocity impact to CAI strength prediction
... performed to study the damage pattern on CFRP laminates arising from low- velocity impact, and to predict the CAI strength of impact damaged composites The impact event and CAI test are two separate topics, ... important measure of damage tolerance of composite materials Extensive experimental research has been performed on the topic of low- velocity impact...
Three dimensional finite element analysis of earth pressure balance tunnelling
... viability of applying three- dimensional finite element analyses to the prediction of ground movement arising from earth pressure balance tunnelling It seeks to address two of the issues involved in three- dimensional ... z-direction of the Cartesian-ordinates Z excav excavation step sizes 2-D two -dimensional 3-D three- dimensional EPB earth pressure balanc...
Finite element study of 2d equivalence to 3d analysis of a discrete soil nail problem with applications to serviceability design
... Āplate, nail (m2) Aplate, Anail (m2) Ān Cross sectional area of 2D idealized plate and 3D nail Contact surface area of 2D idealized plate and 3D nail with soil Cross sectional area factor Af ... encountered by soil nailing (c) Combination of Internal and External Failure 1.1.3 Advantages and Disadvantages of Soil Nailing as a Geotechnical Application The main ad...
Finite element study of oil tank foundation system
... pile raft is also a possible type of oil tank foundation system 2.2 Tank foundation review 2.2.1 Stability A tank stability study of 40 tanks, which included foundation shear failures and ruptures, ... analyses to study the effect of pile cap area, thickness of overlying granular material, number of piles, and stiffness of bed layer of a pile foundation sy...
Finite element study of tunnel soil pile interaction
... the completion of this thesis would not have been possible i FINITE ELEMENT STUDY OF TUNNEL- SOIL- PILE INTERACTION Cheng Ch’ng Yih National University of Singapore ABSTRACT This study was initiated ... analysis of tunnel- soil- pile interaction study can be performed 1.2 Objectives and Scope of Study Due to the inherent nature of the problem where a pile...
Tài liệu Báo cáo khoa học: "Lexicalized Stochastic Modeling of Constraint-Based Grammars using Log-Linear Measures and EM Training" ppt
... experiments: The problem of chaotic convergence behaviour of EM estimation can be solved for log-linear models EM does help constraint-based grammars, e.g using about 10 times more sentences and about 100 ... presented a new approach to stochastic modeling of constraint-based grammars Our experimental results show that EM training can in fact be very helpful for a...
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