Genetic Algorithm Application in Multiaxial Fatigue Criteria Computation.

Jae Youn Kang; Byung Ik Choi; Hak Joo Lee; Sang Rok Lee; Joo Sung Kim; Kee Joo Kim

Both critical plane and stress invariant approaches are used to evaluate fatigue limit criteria of machine component subjected to non-proportional cyclic loading. Critical plane methods require finding the smallest circle enclosing all the tips of shear stress vectors acting on the critical plane. In stress invariant methods, the maximum amplitude of the second invariant of the stress deviator should be determined. In this paper, the previous algorithms for constructing the minimum circumscribed circle or hyper-sphere are briefly reviewed and the method using genetic algorithm is proposed.

GENETIC algorithms; MATERIAL fatigue; STRAINS & stresses (Mechanics)

International Journal of Modern Physics B: Condensed Matter Physics; Statistical Physics; Applied Physics, 2003, Vol 17, Issue 8/9, p1678

0217-9792

Academic Journal

10.1142/S0217979203019502