孙朝阳,方刚,雷丽萍,曾攀

• 1:清华大学机械工程系先进成形制造教育部重点实验室
• 2:清华大学机械工程系先进成形制造教育部重点实验室
• 3:清华大学机械工程系先进成形制造教育部重点实验室
• 4:清华大学机械工程系先进成形制造教育部重点实验室 北京100084

摘要(Abstract)：

通过考虑温度和相变对等效物性参数的影响,建立了包含附加应力和应变的弹塑性增量本构关系,并采用该本构关系和ABAQUS软件构建了淬火过程的数值模拟平台。该本构模型引入的附加应力和应变分别由温度变化和相演化引起的,具有明确的物理意义。通过对26Cr2Ni4MoV钢的圆筒零件水淬过程的模拟表明,该模型能够正确地分析残余应力沿半径方向的分布规律,并且在截面中间部位残余应力值和靠近外表面的应力峰值与实测值更加接近,说明全面考虑温度和相变影响的弹塑性增量本构关系可改善模拟计算的精度。

关键词(KeyWords)： 淬火;弹塑性本构;数值模拟

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(50575124)

作者(Author): 孙朝阳,方刚,雷丽萍,曾攀

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