To model the behaviour of rubbers and rubber-like materials, typically hyperelastic material models are used. A hyperelastic material is elastic: after unloading, the material returns to its original shape. The material state therefore does not depend on the history or the rate of deformation, but only on the current loading. The model is based on a strain energy potential, which is a function of the (invariants of the) current strain.
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Topics: Rubber, hyperelastics, Tips, Tricks & Approaches, marlow