Construction and solution of strain model along thickness of aluminum alloy plate under plastic deformation

作     者：张舒原 廖凯 吴运新 Shu-yuan ZHANG;Kai LIAO;Yun-xin WU

作者机构：中南林业科技大学机电工程学院长沙410004 中南大学机电工程学院长沙410083 

出 版 物：《Transactions of Nonferrous Metals Society of China》 (中国有色金属学报（英文版）)

年 卷 期：2015年第25卷第10期

页      面：3381-3388页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：Project(51475483)supported by the National Natural Science Foundation of China Project(2014FJ3002)supported by Science and Technology Project of Hunan Province,China Project supported by Aid Program for Science and Technology Innovative Research Team in Higher Educational Institutions of Hunan Province,China 

主　　题：isotropic linear hardening thick plate strain model plastic deformation aluminum alloy 

摘      要：A thickness strain model of aluminium alloy plate under plastic deformation,based on thin plate assumption was *** is found that when ratio of stress fractions is constant during in-plane loading,ratios of strain components under various loading conditions are linearly related and these points of ratios form a η-η *** these simple loadings,strains in thickness direction can be easily calculated by the η-η line equation without integral and differential *** the plate is under more complicated loading conditions,the thickness can be computed by the proposed optimization and piecewise calculation *** computations indicate that the relative error of the results of the presented model is less than 0.75% compared with the proven theories and FE ***,the developed model can be applied to engineering calculation,***-stretching analysis of aerospace aluminium thick plate,with acceptable accuracy.