| 起重机焊接箱形梁的疲劳试验 |
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| 引用本文： | 李亿祥.起重机焊接箱形梁的疲劳试验[J].机械工程与自动化,2000(2). |
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| 作者姓名： | 李亿祥 |
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| 作者单位： | 太原重型机械学院!山西太原030024 |
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| 摘 要： | 通过常幅及变幅疲劳试验 ,得出焊接箱形梁的疲劳强度 P-S-N曲线方程及给定寿命下疲劳强度的分布 ,论证变幅与常幅疲劳试验的相互关系 ;试验中取得了焊接箱形梁疲劳破坏裂纹的扩展历程数据并分析断裂的机理
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| 关 键 词： | 疲劳强度 试验 焊件 |
Fatigue tests for Welded trunk beams of cranes |
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| LI Yi-xiang.Fatigue tests for Welded trunk beams of cranes[J].Mechanical Engineering & Automation,2000(2). |
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| Authors: | LI Yi-xiang |
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| Abstract: | By the fatigue tests under constant and varied amplitude loading, the P-S-N curve equations and the given life span distribution function of the fatigue strength are derived respectively for the welded trunk beams of cranes The relation between the constant and varied amplitude fatigue tests is investigated as well The extended histories of the fractures are obtained, and the fracture mechanism is analyzed |
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| Keywords: | weldment fatigue strength fatigue test |
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