The Near Tip Field Expansion of a Propagating Anti-plane Crack with Nonuniform Velocity
Resource
Journal of the Chinese Institute of Engineers 22 (3): 293-300
Journal
Journal of the Chinese Institute of Engineers
Journal Volume
22
Journal Issue
3
Pages
293-300
Date Issued
1999
Date
1999
Author(s)
Ing, Yi-Shyong
Abstract
Abstract In this study, a higher order asymptotic expansion of anti‐plane crack tip fields is investigated for dynamic transient crack growth. A six term and a three term expansion for the shear stresses around the crack tip are obtained for cracks propagating at constant and nonuniform velocity, respectively. In order to compare with the near tip field solution derived in this study, an exact transient solution of propagating cracks with constant velocity is examined. The result shows that the use of the singular field to represent the actual stress field should be carefully considered, especially in the early stages of the dynamic transient field.
Type
journal article