On the path-dependency of the J-integral in a pseudoelastic shape memory alloy Conference Paper uri icon

abstract

  • Detailed finite-element calculations are carried out to examine the path-dependence of the J-integral in a pseudoe-lastic Shape Memory Alloy (SMA) for mode I loading under the approximation of linear kinematics. The evolution equation for the transformation strain is consistent with the classical rate-independent J 2 flow theory. The small-scale non-linearity assumption is employed using a boundary layer approach, wherein the actual boundary conditions have been replaced by the requirement of an asymptotic approach to the linear elastic inverse-square-root stress/strain distribution at large distances from the crack tip. The J-integral is found to be path-dependent inside the transformation zone, close to the crack tip. 2011 by ASME.

published proceedings

  • ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2011

author list (cited authors)

  • Baxevanis, T., Chemisky, Y., & Lagoudas, D.

publication date

  • January 1, 2011 11:11 AM