Author(s): R. A. Schapery
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Keywords: No Keywords
Abstract: Linear and nonlinear viscoelastic constitutive equations for ice are addressed. Following a brief review of linear theory, some recently developed, physically-based nonlinear equations are discussed, considering elastic, viscous and delayed elastic strain components. It is argued that a broad time-spectrum representation is needed for an adequate characterization of the delayed elastic strain. A specific nonlinear constitutive equation is proposed and successfully applied to the strain response of S2 saline ice subjected to multiple cycles of in-plane tensile loading and unloading.
Year: 1996