Transactions of Materials and Heat Treatment

Title：Research on experiment and numerical simulation of mechanical properties for tailor rolled blank

Authors： Deng Renxuan Zhang Guangji Liu Xianghua

Unit： ortheastern University

KeyWords： TRB mechanical property test thickness numerical simulation

ClassificationCode：TG314

year,vol(issue):pagenumber：2014,39(6):32-36

Abstract：

For grasping properties of tailor rolled blank（TRB)，the tensile experiments were conducted along 0°,45° and 90° direction of different thickness sheet drawn，and the relationship curves of experimental parameters varing with thickness were analyzed. Then the 3D figures of real stress and plastic strain varing with thickness were drawn，and relevant mathematical models were established. The above experimental data were used to establish the model of uniaxial tensile for TRB by using the finite element software ABAQUS. According to the finite element simulation of uniaxial tensile process，the actual tensile test was conducted. The results are as follows: the mechanical properties of different regions of TRB are of great differences;through linear interpolation on the 3D figure of real stress, plastic strain and thickness， the mechanical properties of different thickness of TRB along 0°, 45° and 90° direction are obtained;the necking region of TRB uniaxial tensile test and simulation are all in the thin area of tensile sample，and force-displacement curves of experiment and simulation fit well.

Funds：

国家自然科学基金资助项目（50974039，51374069）；中央高校基本科研业务费专项资金资助项目（N130407007）

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