SEDL / STP / STP995V2-EB / STP27705S

Nonlinear Work-Hardening Crack-Tip Fields by Dislocation Modeling

Ellyin, F
Professor, University of Alberta, Edmonton, Alberta

Fakinlede, OA
Assistant professor, University of Ilorin, Ilorin, Kwara State

Pages: 13    Published: Jan 1988

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Abstract

The dislocation model is extended to include nonlinear hardening of the cracktip fields. The resulting model is applied to the loaded and unloaded crack. Several factors affecting the cyclic J-integral are discussed, including mean stress, Baushinger effects, and the applied far-field strain energy density.