An Introduction to a New Criterion Proposed for Stopping GA Optimization Process of a Laminated Composite Plate

Seueral traditiounl stopping criteria in Genetic Alqoritluns (GAs) are applied to the optimization process of a typical laminaied composite plate. The results show that neither- the cr-iteria of the type of statistical pa mmeter s, nOT those of the kinds of theoreticalniod-I» perjotm satisjactoriu; in dctcrtuiuino the intelT1lption point fOT the GA procese. HeTCo consideTLng the ronfig llmtion of the histor-y curve of the marimum objective 0 ( fitness nalue with geneTation number. a Loqaritlnnic Performance Criterion (LPC) is introduced as a stopping criterion for optimization of composite plates. The results highlight the advantages of LPC in perjormiru; sufficiently smooth (no noise], requirinq reasonoble number of yenem,tions, less parameter dependency, less need [or cotisernaiine assumption, on-line contTOliability, wide scope (/pplicabihty, and reasonably easy appliration in enqineerinq decision-making problems.