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) areapplied to the optimization process of a typical laminaied composite plate. theresults show that neither- the cr-iteria of the type of statistical pa'mmeter's, notthose of the kinds of theoreticalniod-i» perjotm satisjactoriu; in dctcrtuiuino theintelt1lption point fot the ga procese. hetco considetlng the ronfig'llmtion ofthe histor-y curve of the marimum objective 0'(' fitness nalue with genetationnumber. a loqaritlnnic performance criterion (lpc) is introduced as astopping criterion for' optimization of composite plates. the results highlightthe advantages of lpc in perjormiru; sufficiently smooth (no noise], requirinqreasonoble number of yenem,tions, less parameter dependency, less need [orcotisernaiine assumption, on-line conttoliability, wide scope (/pplicabihty, andreasonably easy appliration in enqineerinq decision-making problems.