In summary, the chapter outline is the following: Section 1 presents a critical review of hyperelastic models for the non-linear deformation response of rubber-like materials. Constitutive models which can be used to describe AM materials are highlighted. Section 2 discusses the experimental tests which are necessary to determine the material constitutive parameters. A Matlab code, implemented by the authors, which might be used to numerically fit the experimental data is reported. Section 3 presents a case study: rubber pads made of photosensitive polymers are studied through non-linear FEA. The case study highlighs that the\uduse of different constitutive laws leads to different numerical solutions for a given boundary-value problem. The best constitutive law is chosen by comparing FEA results and experiments.
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