Incompatible numerical simulation of the axisymmetric cracked body made of ideally elastic-plastic material

✍ Scribed by Y.K. Cheung; Wu Chang-Chun

• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 691 KB
• Volume: 45
• Category: Article
• ISSN: 0013-7944
• DOI: 10.1016/0013-7944(93)90025-n

✦ Synopsis

Altstraet-It is well known that isoparametric axisymmetric elements always encounter various numerical difhcuhies in computational plasticity. An incompatible ~s~rnet~c element which can avoid the a~ve-motions diffic~ti~ is presented and then used to solve a~s~et~c ductile fracture problems. As an example a stretched cylinder with a ~c~fe~ntial crack is investigated, and elastic, elastic-plastic solutions and plastic limit foads of the cracked cylinders are given and examined. In addition, the path-independence of the J integral is inspected, and the limits for use of the axisymmetric J integral are suggested.