4/5/2024 0 Comments Isotropic materialWhy is that? Is there any specific class of materials where this happens, or we have to conduct experiments to individually check each and every material if their elastic modulus is the same of different under tension and compression?įor small strains of stable materials, the tensile and compressive elastic moduli are equal. Is this true? If yes, then in most of the FEA softwares, there is option to add only one elastic modulus. So I thought maybe it is possible for the material to have different elastic modulus and Poisson's ratio under compression and tension. However, the displacements and the Von-Mises stresses that were seen on the part of the structure that was in tension in the initial loading condition, and again which was in tension in the reversed loading condition, I saw a difference in it and I couldn't understand why it was happening. When I reversed the loading condition, the part that was in compression previously was now in tension and vice versa. Under that loading, one part of the structure was in tension and other in compression. I will not mention the material I was using. ![]() ![]() I was conducting a FEA analysis of a symmetric isotropic structure under a loading condition.
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