By R. Goodall, Y. Conde, R. Müller (auth.), Han Zhao, Dr. N. A. Fleck (eds.)
Solid mobile fabrics (foams, lattice fabrics, honeycombs, etc.) are appealing and feature ended in the production of an lively topic for structural, mechanical and fabric scientists lately. certainly, consistent development within the production recommendations are bettering their houses and decreasing their expenditures; and mass productions and business functions are starting. a massive mechanical challenge is the way to symbolize and version the mechanical behaviour of those fabrics, that is important for business layout and numerical predictions interested by quite a few functions similar to gentle weight buildings, strength absorbers.
This quantity comprises twenty-two contributions written via exotic invited audio system from all a part of the area to the iutam symposium on mechanical houses of mobile fabrics. It presents a survey on contemporary advances within the characterisation and modeling of the mechanical houses of strong mobile fabrics less than static and dynamic loading in addition to their purposes in light-weight buildings research and layout. This quantity may be of curiosity to structural, mechanical and fabric scientists and engineers engaged on varied elements of this new type of fabrics (for instance in microstructure remark, micromechanical and multiscale modeling, phenomenological versions, structural effect behaviour and numerical validation).
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Extra info for IUTAM Symposium on Mechanical Properties of Cellular Materials: Proceedings of the IUTAM Symposium on Mechanical Properties of Cellular Materials, held September 17–20, 2007, LMT-Cachan, Cachan, France
The tortuosity T of the pathways through a porous network is a key parameter for modeling different transport properties (acoustic or thermal waves for example), or for ﬂuid dynamics through the pores. In the present study, T is calculated by the following procedure (see also Fig. 2, summarizing the procedure in 2D): ﬁrstly, all of the pore voxels located in the central plane (the seed plane) of a representative volume of material are labeled with number 1. All adjacent pore voxels (according to a neighbouring criterion) are then labeled 2, and so on through the pore network, effectively creating a distance map of the distance through the phase of interest from the original seed plane.
Implement than serial sectioning that requires ﬁlling of the holes. Thus it appears to be one of the more versatile techniques capable of providing non destructive 3D images of a complete sample of cellular material. Based on different experiments and examples obtained by the authors in recent years, it will be emphasized in the present paper that X-ray tomography is well adapted to the characterization of different aspects of the microstructure of various cellular solids. It will also be shown that the technique can be used to study the deformation modes by means of in situ loading in compression, tension, and fatigue.
Duan et al. nano-porous/cellular materials with new physical and chemical properties (Masuda and Fukuda, 1995; Martin and Siwy, 2004). , 2004). Thus pore surface modiﬁcations are possible and these can be exploited to create nano-porous materials that are very stiff and light and have very low thermal conductivity. One important and immediate application of these materials may be in the fabrication of sandwich structures, as porous/cellular materials are widely used as cores in sandwich construction in many important industries because they are light and excellent thermal and noise insulators.
IUTAM Symposium on Mechanical Properties of Cellular Materials: Proceedings of the IUTAM Symposium on Mechanical Properties of Cellular Materials, held September 17–20, 2007, LMT-Cachan, Cachan, France by R. Goodall, Y. Conde, R. Müller (auth.), Han Zhao, Dr. N. A. Fleck (eds.)