Abstract
The stress fields at the tip of a crack terminating at and perpendicular to the interface under symmetric in-plane loading are investigated. The bimaterial interface is formed by a linearly elastic material and an elastic power-law creeping material. Using generalized expansions at the crack tip in each region and matching across the interface, a series asymptotic solution is constructed for the stresses and strain rates near the crack tip. It is found that the stress singularities, to the leading order, are the same in each material, oscillatory higher-order terms exist in both regions, and stress higher-order term with the order of O(r°) appears in the elastic material. The stress exponents and the angular distributions for singular terms and higher order terms are obtained for different hardening exponents. A full agreement between asymptotic solutions and the full-field finite element solutions has been obtained.
| Original language | English |
|---|---|
| Pages (from-to) | 2021-2031 |
| Number of pages | 11 |
| Journal | Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference |
| Volume | 3 |
| Publication status | Published - 1997 |
| Event | Proceedings of the 1997 38th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. Part 4 (of 4) - Kissimmee, FL, USA Duration: 1997 Apr 7 → 1997 Apr 10 |
All Science Journal Classification (ASJC) codes
- Architecture
- General Materials Science
- Aerospace Engineering
- Mechanics of Materials
- Mechanical Engineering