基于蠕变的高温构件应力松弛损伤模型  

Creep Based Stress Relaxation Damage Model for High Temperature Components

作　　者：郭进全[1] 轩福贞[1] 王正东[1] 涂善东[1] 

机构地区：[1]华东理工大学承压系统安全科学教育部重点实验室,上海200237

出　　处：《核动力工程》2009年第4期9-12,共4页Nuclear Power Engineering

基　　金：国家863高技术资助项目(2006AA04Z413)

摘　　要：基于Schlottner-Seeley平均蠕变断裂速率原理和松弛方程,构建了应力松弛损伤模型;采用该模型对高温紧固材料1Cr10NiMoW2VNbN进行了损伤预测和实验验证。结果表明,该模型预测的数据与实际试验结果吻合较好。Based on Schlottner-Seele average creep rupture rate theory and relaxation function, this paper constructs a relaxation damage model, with which to predict the relaxation damage life of high tempera ture bolting material 1Cr10NiMoW2VNbN. Validation results of relaxation tests indicate that the developed model has led to better consistent results with the experimental data.

关 键 词：应力松弛损伤 寿命模型 高温紧固件 蠕变损伤 平均断裂速率 

分 类 号：TG111.81[金属学及工艺—物理冶金]