New strategy for identification parameters of a micromechanical model coupled with ductile damage

摘要：

　　A low-cyclic fatigue micromechanical model proposed recently 1 for emphasizing the concept of damage induced anisotropy is used.The solution of these nonlinear constitutive relations is an important topic since it requires an important computational time.With a high nonlinearity due to damage,the identification of model parameters represents consequently an important subject.In fact,a combination of the genetic algorithm (for the global optimization) with pattern search algorithm (for the local optimization) is proposed.A comparative study is conducted under complex cyclic loadings showing the ability of the proposed approach in calibrating model parameters.

关键词： Low-cyclic fatigue parameters identification global minimum and local minimum optimization

作者: Jean-Claude Rakotoarisoa Donné Razafindramary Akrum Abdul-Latif

作者单位: Université dAntsiranana Madagascar;Laboratoire dIngénierie des Systèmes Mécaniques et des Matériau Université Paris 8;Laboratoire dIngénierie des Systèmes Mécaniques et des Matériaux LISMMA

会议类型: 国际会议

会议名称: 第13届国际断裂大会(ICF2013)

会议地点: 北京

会议语种:英文

页码: 1-8

在线出版日期: 2013-06-16（万方平台首次上网日期，不代表论文的发表时间）