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The anelastic Ericksen problem: universal deformations and universal eigenstrains in incompressible nonlinear anelasticity

Abstract:
Ericksen’s problem consists of determining all equilibrium deformations that can be sustained solely by the application of boundary tractions for an arbitrary incompressible isotropic hyperelastic material whose stress-free configuration is geometrically flat. We generalize this by first, using a geometric formulation of this problem to show that all the known universal solutions are symmetric with respect to Lie subgroups of the special Euclidean group. Second, we extend this problem to its anelastic version, where the stress-free configuration of the body is a Riemannian manifold. Physically, this situation corresponds to the case where nontrivial finite eigenstrains are present. We characterize explicitly the universal eigenstrains that share the symmetries present in the classical problem, and show that in the presence of eigenstrains, the six known classical families of universal solutions merge into three distinct anelastic families, distinguished by their particular symmetry group. Some generic solutions of these families correspond to well-known cases of anelastic eigenstrains. Additionally, we show that some of these families possess a branch of anomalous solutions, and demonstrate the unique features of these solutions and the equilibrium stress they generate.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1007/s10659-020-09797-2

Authors

More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Mathematical Institute
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Mathematical Institute
Role:
Author


Publisher:
Springer
Journal:
Journal of Elasticity More from this journal
Volume:
142
Pages:
291-381
Publication date:
2020-10-07
Acceptance date:
2020-09-16
DOI:
EISSN:
1573-2681
ISSN:
0374-3535


Language:
English
Keywords:
Pubs id:
1132593
Local pid:
pubs:1132593
Deposit date:
2020-09-17
ARK identifier:

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