Abstract:
A full-scale study of the physical and mechanical properties of a number of samples of commercial biomaterials-patches was carried out. It is shown that all materials have a pronounced non-linearity of behavior, manifested in the presence of an initial gentle stress section with a subsequent increase in stiffness, however, there are quantitative differences in the length of these sections and, accordingly, in the final characteristics: tensile strength, elongation at break, elasticity. The results of numerical verification of the obtained coefficients of hyperelastic materials models showed high convergence with the results of field tests.
Keywords:numerical simulation, physical and mechanical testing, hyperelastic material model, polynomial approximation.
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