振动拉伸的弹粘塑性模型  

An Elastic-Viscoplastic Model for the Tension under Oscillatory Loading

作　　者：何勍[1] 闻邦椿[1] 

机构地区：[1]东北大学,沈阳110006

出　　处：《机械科学与技术》2000年第3期345-346,共2页Mechanical Science and Technology for Aerospace Engineering

摘　　要：基于弹粘塑性本构关系 ,讨论了附加振动时单轴拉伸的应变及应力变化过程。分析结果表明 ,本文所给出的力学模型 。Based on the elasto viscoplastic constitutive equation, the history of stress and strain is analyzed during uniaxis tension under oscillatory loading. The analytical results show that the model developed in this paper well reflects such known experimental facts of stress overshooting and mean stress decreasing reported in existing papers.

关 键 词：振动 单轴拉伸 弹粘塑性 力学模型 塑性变形 

分 类 号：TG301[金属学及工艺—金属压力加工] TH113.1[机械工程—机械设计及理论]