GH4169缺口件多轴加载下应力应变场的有限元分析  

Stress-Strain Field FEM Analysis for GH4169 Notched Specimens under Multiaxial Loading

作　　者：刘灵灵[1] 王建国[1] 

机构地区：[1]北京科技大学新金属材料国家重点实验室,北京100083

出　　处：《物理测试》2005年第3期11-13,32,共4页Physics Examination and Testing

摘　　要：采用GH4169缺口试件在650 ℃下进行了高温拉扭疲劳断裂试验,利用ANSYS 6 1 有限元分析软件计算试件缺口周围的应力应变场,确定出试件在各种载荷状况下的应力集中系数。计算结果表明,该有限元建模方式是合理的,为以后缺口件的寿命预测过程奠定了基础。The multi axial fatigue behavior was studied of alloy GH4169 notched specimens at 650 ℃. The stress strain responses of notched specimens were calculated by means of the program ANSYS 6.1.The stress concentration parameters under various loading conditions were determined. The calculation results show that the finite element model is reasonable and will be useful for multi axial fatigue life prediction in future.

关 键 词：高温 多轴低周疲劳 比例加载 非比例加载 有限元法 

分 类 号：TG115.5[金属学及工艺—物理冶金]