✦ LIBER ✦
Comparison of two quarter-point element extrapolation equations for three-dimensional mixed-mode problems
✍ Scribed by Li Sen Chen; Jao Hwa Kuang
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 202 KB
- Volume
- 45
- Category
- Article
- ISSN
- 0013-7944
No coin nor oath required. For personal study only.
✦ Synopsis
Two quarter-point extrapolation equations for the stress intensity factors in three-dimensional mixed-mode problems are compared, one set of equations proposed by Rhee and the other derived from the Tracey-Barsoum equations. The nodal displacements of the collapsed quarter-point elements around the crack tip are employed by both methods to extrapolate the stress intensity factors. The analytical derivations indicate good agreement between the methods. It is concluded that both equations may be approached differently but are identical in essence.