Journal
SYMMETRY-BASEL
Volume 15, Issue 3, Pages -Publisher
MDPI
DOI: 10.3390/sym15030628
Keywords
symmetrical total stress; generalised mathematical formulation; nonlinear electro-magneto-elastic solid; time-dependent
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This paper improves the existing literature by developing a time-dependent electromagnetic constitutive equation to describe the mechanical behavior of soft solids at finite strains, considering the full form of the Maxwell equations. The proposed model introduces a symmetrical total stress and utilizes recently developed spectral invariants in the amended energy function, making it relatively simple and suitable for finite element analysis.
To date, the mechanical models of magnetoelectric couplings at finite strains have mainly been limited to time-independent constitutive equations. This paper enhances the literature by developing a time-dependent electromagnetic constitutive equation to characterise the mechanical behaviour of soft solids at finite strains and take into account the full form of the Maxwell equations. Our formulation introduces a symmetrical total stress and uses recently developed spectral invariants in the amended energy function; as a result, the proposed constitutive equation is relatively simple and is amenable to a finite-element formulation.
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