结构钢光试样的等寿命图  

CONSTANT LIFE FATIGUE DIAGRAM WITH SMOOTH SPECIMENS FOR STRUCTURAL STEEL

作　　者：丁遂栋[1] 孙利民[1] 陈爱闽[2] 

机构地区：[1]郑州工业大学数理力学系,郑州450002 [2]郑州机械研究所,郑州450052

出　　处：《力学与实践》1999年第4期64-65,共2页Mechanics in Engineering

基　　金：河南省自然科学基金

摘　　要：提出结构钢光试样等寿命曲线方程，并提出用等寿命曲线方程绘制结构钢光试样等寿命图的新方法．只要测得材料在对称循环（r＝－1）下的S-N曲线，就可以用等寿命曲线方程绘制材料的等寿命图．用等寿命曲线方程绘制等寿命图与传统的方法相比，可减少60％～70％的疲劳试验．The constant life fatigue curve equation for structural steel smooth specimens is presented. Based on the equation, the article presents a new method by which constant life fatigue diagram of structural steel smooth specimens can be obtained, so long as material data for S-N curve of symmetry cycle (r = -1) are determined. When compared to traditional method, constant life fatigue diagram based on constant life fatigue curve equation can reduce fatigue tests by 60%～70%.

关 键 词：结构钢 光试样 等寿命曲线方程 等寿命图 

分 类 号：TG115.57[金属学及工艺—物理冶金] TG113.255[金属学及工艺—金属学]