大块非晶合金复杂应力状态塑性本构方程

材料科学与工艺, 2004, 12(6): 662-665. doi: 10.3969/j.issn.1005-0299.2004.06.027

大块非晶合金复杂应力状态塑性本构方程

陈德民 ^1, , 孙剑飞 ^2, , 沈军 ^3, , 邢大伟 ^4, , 梁立孚 ^5,

1.装甲兵工程学院,机械工程系,北京,100072

2.哈尔滨工业大学,材料科学与工程学院,黑龙江,哈尔滨,150001

3.哈尔滨工业大学,材料科学与工程学院,黑龙江,哈尔滨,150001

4.哈尔滨工业大学,材料科学与工程学院,黑龙江,哈尔滨,150001

5.哈尔滨工程大学,航天工程系,黑龙江,哈尔滨,150001

关键词：大块非晶合金 , Mises屈服准则 , 复杂应力状态 , 塑性本构方程

Plastic constitutive equations of bulk amorphous alloy under complex stress state

为得到复杂应力状态下大块非晶合金的塑性本构方程,对Zr41.2Ti13.8Ni10Cu12.5Be22.5大块非晶合金进行简单拉伸、压缩和扭转实验,得到相应的一维本构关系,并应用弹塑性力学的相关理论,将一维本构方程延拓到多维应力空间.研究结果表明:该材料符合Mises屈服条件并具有强化特性;利用简单压缩和扭转实验结果可推导出材料在复杂应力状态下的塑性本构方程,且这两个塑性本构方程是一致的.

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大块非晶合金复杂应力状态塑性本构方程

Plastic constitutive equations of bulk amorphous alloy under complex stress state

参考文献