南京航空航天大学学报（英文版）2004，Vol.21Issue(4)：286-290,5.
改进剥层应变法测量铝合金预拉伸厚板内部残余应力分布
MODIFIED LAYER REMOVAL METHOD FOR MEASUREMENT OF RESIDUAL STRESS DISTRIBUTION IN THICK PRE-STRETCHED ALUMINUM PLATE
摘要
Abstract
The integrated structure parts are widely used in aircraft. The distortion caused by residual stresses in thick pre-stretched aluminum plates during machining integrated parts is a common and serious problem. To predict and control the machining distortion, the residual stress distribution in the thick plate must be measured firstly. The modified removal method for measuring residual stress in thick pre-stretched aluminum plates is proposed and the stress-strain relation matrix is deduced by elasticity theory. The residual stress distribution in specimen of 7050T7451 plate is measured by using the method, and measurement results are analyzed and compared with data obtained by other methods. The method is effective to measure the residual stress.关键词
铝合金预拉伸板/残余应力/测量/改进剥层应变法Key words
pre-stretched aluminum plate/residual stress/measurement/modified layer removal method分类
航空航天引用本文复制引用
王树宏,左敦稳,王珉,王宗荣..改进剥层应变法测量铝合金预拉伸厚板内部残余应力分布[J].南京航空航天大学学报（英文版）,2004,21(4):286-290,5.基金项目
国家自然科学基金(50375072)资助项目. （50375072）
