On quadratic isoparametric transition elements for a crack normal to a bimaterial interface
✍ Scribed by Arash Yavari; Shahram Sarkani; E. Thomas Moyer Jr.
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 140 KB
- Volume
- 46
- Category
- Article
- ISSN
- 0029-5981
No coin nor oath required. For personal study only.
✦ Synopsis
The quadratic isoparametric crack-tip elements proposed by R. E. Abdi and G. Valentin (Computers and Structures 33, 241}248) are reconsidered and a simpler method for calculating the optimal position of the side nodes proposed. Quadratic isoparametric transition elements for an r !1 (0( (1) strain singularity are formulated. The e!ects of these transition elements on the accuracy of the calculated stress intensity factors are shown numerically for a crack normal to and terminating at a bimaterial interface. Finally, layered transition elements are formulated for this case and their e!ects studied numerically.