TY - EJOU AU - Munteanu, Ligia AU - Brisan, Cornel AU - Chiroiu, Veturia AU - Donescu, Stefania TI - On the Compression Viewed as a Geometric Transformation T2 - Computers, Materials \& Continua PY - 2012 VL - 31 IS - 2 SN - 1546-2226 AB - A modeling of the compression by using the property of Helmholtz equation to be invariant under geometric transformations is presented in this paper. The versatility of the geometric transformations is illustrated in order to obtain a new interpretation of the compression process. The physical spatial compression leads, most of the times, to new materials with inhomogeneous and anisotropic properties. The compression can be theoretically controlled by the geometric transformations. As an example, new architectures for auxetic materials can be built up by applying the geometric transformations. The new versions are finding their full correspondents in the results of the experiments in which the conventional foams are subjected to compressive cyclic loading. KW - Compression KW - Geometric transformation KW - Auxetic foams KW - Cosserat theory DO - 10.3970/cmc.2012.031.127