理想弹塑性材料弯曲回弹分析及回弹弯矩计算  

Analysis of Re-spring Process of Ideal Elastic-plastic Material and Calculation of its Re-spring Bending Moment

作　　者：刘金武[1] 贺永祥[1] 

机构地区：[1]湖南工程学院,湖南湘潭411101

出　　处：《金属成形工艺》2001年第3期22-25,共4页Metal Forming Technology

摘　　要：分析了弯曲回弹应力应变变化过程 ,推导了矩形截面杆回弹弯矩、回弹曲率的计算公式 (1 4 )、(1 1 ) ;发现经典纯弯曲理论确定回弹弯矩的方法与公式 (1 4 )This paper analyzes the changing process of the stress and the strain of bending re spring,infers calculating formula (14)、(11) of re spring curve and re springing bending moment for beams of section of rectangle,and finds the more theory tolerance between the formula (14) and the method determining re spring bending moment according to the classically pure bending theory.

关 键 词：回弹过程 回弹弯矩 回弹角 理想弹塑性材料 弯曲 

分 类 号：TG302[金属学及工艺—金属压力加工]