[...]... tested and is in charge in the development and evaluation of textiles for shielding in different applications in clothes but also in the construction area Shielding values over 99% and higher can be reached depending on the frequency of the electromagnetic waves We have worked out and illustrated the analyses of Figures 7 and 8 from a published test series on the insertion of metal wires in fabrics in. .. fabrics in plain weave [5] Figure 7 shows the following: • • As it could be expected, the shielding effect increases with increasing yarn density for a certain frequency The shielding effect decreases with increasing frequency, e.g shorter wave length for the same textile construction Fig 7 Shielding effect as a function of metal wire density in warp and weft direction at plain weave The following can be... this surface to determine a candidate on the opposite surface, and then, in a second step, applying again the same process from this candidate, has very little chance to give the same initial point The main objection that may be raised in relation with these two points, is that using as searching direction the direction normal to only one surface, is, in a sense, like considering only half of the geometry... simulation of technical textiles Technical Textiles 46:E53–E55 4 Stegmaier T, Dauner M, Dinkelmann A, Scherrieble A, Schneider P, Planck H (2004) Nanostructered fibres and coatings for technical textiles Technical Textiles 4 5 Elektro-Feindraht (2003) ITB International Textile Bulletin 2 Finite Element Simulation of the Mechanical Behaviour of Textile Composites at the Mesoscopic Scale of Individual Fibers... the interactions developed between fibers The recent development of computational capacities makes this kind of computations now feasible Different approaches to simulate the behaviour of textile structures can be found in the litterature Some are based on the construction of discrete models, relying on E Oñate and B Kröplin (eds.), Textile Composites and In atable Structures II, 15–34 © 2008 Springer... energy absorption and vibration damping Pultrusion products on biomimetic principles Fiber reinforced composites are made by placing fibers with high tenacity into a surrounding, form-giving matrix system Fiber orientation in nature follows exactly the main forces in the structure generated by gravity and wind There are only just enough fibers to cope with the external load These properties in nature constructions... may interfere with other appliances and also in uence peoples health and quality of life and the environment There is a wide choice of materials available for the construction of textiles with shielding effects: • • Electro conductive materials (stainless steel, silver, nickel, copper, gold, carbon) can be used in principal for the shielding against electrical fields, and ferromagnetic materials against... stiffness and load bearing (Figure 12) Another measure is taken to gain a high elasticity and high vibration damping in composites due to the principal of natural fiber reinforced systems They are able to damp vibration by reducing the high shear stresses between the stiff fibers and the matrix by a stiffness gradiation between fiber and matrix called “Microgradiation” Destruction during dynamic loading can... principles like waterrepellency, nanostructuring and soil release in combination with a reliable production quality and high quality standards in the special product range the new label “selfcleaning – inspirited by nature” can be aquired (Figure 4) This label confirms the security in production on high level and security in make-up to the final product The advantages for the costumer/user are safety and. .. temperature change in constant and changing modes Simulation of dew, rain and hail Simulation of solar and UV-radiation Simulation of substances contained in the air, corrosive gases: nitrogen oxides, sulfur dioxide, ozone Inclusion of particles: dirt, dust, sand, salts and test soils Simulation of static and dynamic-mechanical stresses Simulation of chemical in uences These tools have to be combined due to . Bridgens and P.D. Gosling 51 D. Ballhause, M. König and B. Kröplin Introducing Cutting Patterns in Form Finding and Structural Analysis 69 J. Linhard, R. Wüchner and K U. Bletzinger Kinematics in Tensioned. h0" alt="" TEXTILE COMPOSITES AND INFLATABLE STRUCTURES II Computational Methods in Applied Sciences Vo l u m e 8 Series Editor International Center for Numerical Methods in Engineering (CIMNE) Technical. state-of-the-art research and technology for design, analysis, construction and maintenance of textile and in atable structures. Textile composites and in atable structures have become increasingly popular