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 energetic topic for structural, mechanical and fabric scientists lately. certainly, consistent growth within the production strategies are bettering their homes and lowering their charges; and mass productions and business functions are starting. a massive mechanical challenge is how you can symbolize and version the mechanical behaviour of those fabrics, that's worthy for commercial layout and numerical predictions taken with a variety of functions resembling mild weight constructions, strength absorbers.
This quantity comprises twenty-two contributions written through unusual invited audio system from all a part of the area to the iutam symposium on mechanical houses of mobile fabrics. It offers a survey on fresh advances within the characterisation and modeling of the mechanical homes of good mobile fabrics below static and dynamic loading in addition to their purposes in light-weight constructions research and layout. This quantity should be of curiosity to structural, mechanical and fabric scientists and engineers engaged on various facets of this new classification of fabrics (for instance in microstructure remark, micromechanical and multiscale modeling, phenomenological types, structural effect behaviour and numerical validation).
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Extra resources 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
7. With the same relative density, the stiffness of hexagonal honeycomb is far less than the other two kinds of lattices, so the plastic dissipation is a less value at the beginning. Large deformation occurs as the sketching goes further, the topology of hexagonal honeycomb transfers to an approximate rectangle. Therefore, the rising velocity of its plastic dissipation increases quickly. The Kagome lattice shows slight advantage in plastic dissipation compared with the triangular honeycomb. 4 Conclusions The distinction between the tensile and compressive yield strengths of the solid material can inﬂuence the yield surfaces of the lattice structures in both the shape and size.
Besides the generalized Young-Laplace Eq. (1), we need a surface constitutive equation to solve boundary-value problems with the surface stress effect. For an elastically isotropic surface, it is (Duan and Karihaloo, 2007) τ = λs (trε s )1 + 2µs ε s − ∆Tαs κs 1 ε s = 12 D ⊗ u + D ⊗ uT , D ⊗ u = P · (∇s ⊗ u) (3) where P = I(2) −n⊗n, I(2) is the second-order identity tensor in a three dimensional space, ε s is the surface strain tensor, λs and µs are the surface moduli, κs = 2(λs + µs ), αs is the coefﬁcient of thermal expansion (CTE) of the surface, 1 is the secondorder unit tensor in two-dimensional space, and ∆T is the temperature difference.
362 (1999). 13. E. Maire, P. Colombo, J. Adrien, L. Babout, L. Biasetto. J. Eur. Ceram. Soc. 27 pp. 1973– 1981 (2007). 14. Vogel. Eur. J. Soil Sci. 48 pp. 365–377 (1997). 15. Vogel, Roth. Adv. Water Resour. 24 pp. 233–242 (2001). 16. A. H. R. Hobdel, G. J. Oldman, W. Ludwig, E. Boller, P. Cloetens, J. Baruchel. J. Mater. Sci. 37 p. 1547 (2002). 17. E. Maire, A. Elmoutaouakkil, A. Fazekas, L. Salvo. MRS Bull. 28 p. 284 (2003). 18. J. Adrien, E. Maire, N. Gimenez, V. Sauvant-Moynot. Acta Mater. 55 pp.
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.)