1st European Mechanics of Materials Conference on Local Approach to Fracture '86 - 96'
J. Phys. IV France 06 (1996) C6-307-C6-314
Prediction of Cleavage Probability Using Higher Order Terms of the Crack Tip FieldA. Brückner-Foit1, G.P. Nikishkov2 and D. Munz1, 2
1 IZSM, Karlsruhe University, P.O. Box 3640, 76021 Karlsruhe, Germany
2 IMF II, Forschungszentrum Karlsruhe, P.O. Box 3640, 76021 Karlsruhe, Germany
The dependence of the Weibull stress is investigated on the parameters of the elasticplastic crack tip field. The general form of the Weibull stress is given for a three-parameter approximation of the elasto-plastic crack tip field. This is the basis to define a constraint correction of the critical value of the J-integral for cleavage fracture.
© EDP Sciences 1996