Reliable J-Values - Numerical Aspects of the Path-Dependence of the J-Integral in Incremental Plasticity
The determination of reliable J-values in structural analyses by the finite element method for elastic-plastic material behaviour is addressed.
W. Brocks and I. Scheider
ABSTRACT A survey over the theoretical background of the J-integral is given, possibilities and restrictions of application in elastic-plastic fracture mechanics are pointed out, and the calculation by the finite element method with special reference to ABAQUS is addressed in detail. In particular, the problem of path-dependence in incremental plasticity is discussed. It is shown that only a far-field value of J is uniquely defined, physically significant and in accordance with the results of respective experimental standards.
Publication Source: Materialprüfung, ISSN: 0025-5300
Issue: 2003-6, pp -
Publisher: Carl Hanser Verlag München
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