所属单位：机电学院
发表刊物：METALS
关键字：TA32 titanium alloy fracture behavior forming limit curve M-K theory finite element simulation
摘要：In aerospace and automotive industries, hot press forming (HPF) technology is widely used for rapid and precise deformation of the complex sheet metal component, where the fracture behavior has always been a focused problem. In this study, the hot tensile test and the Nakazima test were carried out, in order to establish the Misiolek constitutive equation and determine the forming limit strain points at an elevated temperature, respectively. The microstructure evolution during the tensile test was also investigated by optical microscope. In addition, the Marciniak-Kuczynski (M-K) model, considering the Mises, Hi1148, and Logan-Hosford yield criteria, was utilized to calculate the theoretical forming limit curve (FLC). Furthermore, the fracture behavior of the TA32 alloy sheet during the HPF process was accurately predicted by inserting the predicted FLC into finite element simulation, and the qualified complex component was obtained by optimizing the shape of the sheet.
ISSN号：2075-4701
是否译文：否
发表时间：2018-12-01
合写作者：Fan, Ronglei,F70206607,谢兰生
通讯作者：陈明和
发表时间：2018-12-01