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A crease formed on the compressed surface of a popular Chinese food, Liang Fen (a starch gel).
Schematic a semi-infinite block of elastomer. (a) The undeformed elastomer is taken to be the reference state. (b) The block is in a state of homogeneous deformation. (c) The block is prescribed with a crease.
The difference in elastic energy between the creased state and the homogeneous state, calculated with ABAQUS. The critical value of applied strain is approximately .
A generalized plane-strain problem and its equivalent plane-strain problem.
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