工程科学学报2016，Vol.38Issue(9)：1317-1326,10.DOI:10.13374/j.issn2095-9389.2016.09.018
双金属复合板矫直过程的弯曲及弹复解析
Bending and springback analysis of bimetal composite plates during leveling
摘要
Abstract
An analytical model of section elastoplastic state evolution paths was built for bimetal composite plates under different assemble patterns during bending and leveling based on engineering elastoplastic mechanics. Based on this model, the bending and re-bounding process of stainless steel clad plates was analyzed, the section reverse yield phenomenon during rebounding was explained, and the bending process of stainless steel clad plates was contrasted to that of single material sheets. The results show that five elasto-plastic states of the bimetal composite plate section occurs along with different neutral layer offset laws, and the residual stress distribu-tion is more uneven and may enter the reverse yield state after bending. The relative difference of bending moment between the bimetal composite plate and the single sheet increases with increasing yield strength ratio, and the absolute value first increases then decreases with increasing curvature.关键词
双金属板/弯曲/回弹/矫直/残余应力Key words
bimetal sheet/bending/springback/leveling/residual stress分类
矿业与冶金引用本文复制引用
张超,臧勇,管奔,秦勤..双金属复合板矫直过程的弯曲及弹复解析[J].工程科学学报,2016,38(9):1317-1326,10.基金项目
国家高技术研究发展计划资助项目(2013AA031302) （2013AA031302）
中国博士后科学基金资助项目(2014M550611) （2014M550611）
北京市自然科学基金青年科学基金资助项目(3154036) （3154036）
