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This article describes the response of the knitted fabric to the mechanical loading and how a simplified FE model can approach realistically the response of the structure to the mechanical loading. The knitted fabric is made of nitinol material, which belongs to the group of shape memory alloys. The simulations show the behaviour of this structure in unidirectional stretching and in bending by a punch.

The module Structural Mechanics in COMSOL Multiphysics is used, the knitted fabric is modeled by beam elements with large deformations. The martensitic volume fraction in course of phase transformation between the austenite and the martensite is one of the main results. The deformations, bending moments and axial forces in the knitted fabric are also calculated.