Crack problem within the context of implicitly constituted quasi-linear viscoelasticity
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© 2019 The Author(s). A quasi-linear viscoelastic relation that stems from an implicit viscoelastic constitutive body containing a crack is considered. The abstract form of the response function is given first in Lp, p > 1, due to power-law hardening; second in L1 due to limiting small strain. In both the cases, sufficient conditions on admissible response functions are formulated, and corresponding existence theorems are proved rigorously based on the variational theory and using monotonicity methods. Due to the presence of a Volterra convolution operator, an auxiliary-independent variable of velocity type is employed. In the case of limiting small strain, the generalized solution of the problem is provided within the context of bounded measures and expressed by a variational inequality.
author list (cited authors)
Itou, H., Kovtunenko, V. A., & Rajagopal, K. R.