模具技术Issue(6)：73-79,7.
飞机高强钢拼焊板高温拉伸试验及高温本构模型研究
High-temperature tensile test and high-temperature constitutive model of aircraft high-strength steel tailored blank
摘要
Abstract
In order to understand the thermal deformation characteristics of B340LA low-carbon alloy steel,B1500HS cold-rolled steel and B340LA/B1500HS high-strength steel tailored blank and other commonly used steels in aircraft manufacturing,and improve the processing capacity of related enterprises for high-strength steel.The tensile test of various high-strength steel sheets was carried out to obtain the stress-strain relationship data of the sheets.On this basis,the improved Johnson-Cook model is used to fit the stress-strain relationship data of the sheet,and an ideal fitting effect is obtained,and the coefficient of determination R2 is close to 1,which means that the fitting results of the model have good reliability.Finally,based on the fitting results,the constitutive models of three high-strength steel sheets,namely B340LA low-carbon alloy steel,B1500HS cold-rolled steel and B340LA/B1500HS high-strength steel tailored blank,were established.关键词
高强度钢/拉伸试验/拟合关系/本构模型Key words
high strength rigidity/tensile test/fitting relationship/constitutive model分类
航空航天引用本文复制引用
赵凯..飞机高强钢拼焊板高温拉伸试验及高温本构模型研究[J].模具技术,2024,(6):73-79,7.基金项目
2023年度陕西省教育厅科研计划项目"航空发动机涡轮叶片热障涂层气膜孔光整"(编号:23JP076). （编号:23JP076）
