Surface energy for formation of inclined and interface cracks terminating at a bimaterial Interface

Jui Hung Chang, Yong Jih Huang

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

This paper proposes a damage parameter, Mint, for evaluation of the surface energy associated with the formation of multiple cracks terminating at a bimaterial interface. The study considers two crack mechanisms, including an inclined crack terminating at the interface with an arbitrary angle and an interface crack lying along the material interface. Based on the concept of the M-integral, the parameter Mint is developed by conducting the integration along a closed contour enclosing all the cracks and with respect to a specific reference coordinate system. The formulation is shown to be path-independent, and therefore good accuracy of Mint can be achieved even when elaborate near-tip local solutions are not ensured.

Original languageEnglish
Article number04017091
JournalJournal of Engineering Mechanics
Volume143
Issue number9
DOIs
StatePublished - 1 Sep 2017

Keywords

  • Bimaterial interface
  • Inclined crack
  • Interface crack
  • M-integral
  • Path independence
  • Surface energy

Fingerprint

Dive into the research topics of 'Surface energy for formation of inclined and interface cracks terminating at a bimaterial Interface'. Together they form a unique fingerprint.

Cite this