Abstract
We study the evolution of crease in an elastomer under three different loading conditions. Two- dimensional finite element analysis is performed by combining a non-linear perturbation approach to find a bifurcation solution for the flat surface in a metastable state. A generalized plane strain element is used to impose plane strain, uniaxial, and equibiaxial conditions on the elastomer. The solution is the deformation path for crease evolution, and the path ends at the critical strain for creasing 𝜀!.Thedepthandself-contactlengthofthecreases,whichareindicatorsofcreaseevolution, are described as functions of powers with constants and scaling exponents, which are expressed as linear functions of the crease interval.
https://ror.org/04chrp450 
