Mode I Steady Crack-Growth in Superelastic Shape Memory Alloys Conference Paper uri icon

abstract

  • A numerical analysis of quasi-static, steady state crack growth in superelastic Shape Memory Alloys (SMAs) under small-scale transformation conditions is carried out for plane strain, mode I loading. Crack growth is assumed to proceed at a critical level of the crack-tip energy release rate. Finite-element results concerning the mechanical fields near the advancing crack tip are presented and the ratio of the far-field applied energy release rate to the crack-tip energy release rate is obtained for a range of thermomechanical parameters. A substantial fracture toughening is observed associated with closure stresses placed on the crack tip by the transformed material left behind in the wake of the advancing crack tip.

name of conference

  • ASME 2012 Conference on Smart Materials, Adaptive Structures and Intelligent Systems

published proceedings

  • Volume 2: Mechanics and Behavior of Active Materials; Integrated System Design and Implementation; Bio-Inspired Materials and Systems; Energy Harvesting

author list (cited authors)

  • Baxevanis, T., Lagoudas, D., & Landis, C

citation count

  • 0

complete list of authors

  • Baxevanis, Theocharis||Lagoudas, Dimitris||Landis, Chad

publication date

  • September 2012