Shape memory polymers

Shape memory polymers

constitutive modeling & numerical implementation

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Shape memory polymers commonly experience both finite deformations and arbitrary thermomechanical loading conditions in engineering applications. This motivates the development of 3D constitutive models within the finite deformation regime. In the present work, based on the principles of continuum thermodynamics with internal variables, a 3D finite deformation phenomenological constitutive model is proposed. In the constitutive model derivation, a multiplicative decomposition of the deformation gradient into elastic and inelastic stored parts (in each phase) is adopted. Moreover, employing the...