确定金属-陶瓷复合材料幂强化模型参数的一种方法  

A Method to Determine the Power Strengthen Model Parameters of Ceramal Complex Material

作　　者：宋伟香 张有才[2] 

机构地区：[1]莆田高等专科学校 [2]焦作工学院

出　　处：《焦作工学院学报》1997年第1期43-47,共5页Journal of Jiaozuo Institute of Technology(Natural Science)

摘　　要：推导了横向荷载作用下的四点弯曲幂强化弹塑性梁的挠度计算公式；在此基础上，根据构件试验结果及最小二乘法，确定了幂强化模型σ＝Ａεｎ中的材料参数Ａ、ｎ。从而确定了ＭｇＯ／Ｎｉ系材料弹塑性本构关系。This paper has deduced a deflection calculating equation for the four-point bending power strengthening elastoplastic beam under the action of sideway load. According to the member testing results and the least squares procedure, the material parmeters A、n in the power strngthening model σ=Aε n has been determined. Thus, the elastoplastic constitutive relation for the materials in the MgO/Ni series has been decided.

关 键 词：幂强化 弹塑性 应力 应变 金属-陶瓷 复合材料 

分 类 号：TB333[一般工业技术—材料科学与工程] TB321