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| 高温低周疲劳寿命评价准则的探讨 | |
| 引用本文： | 张文孝,陈飞,郭成璧,于强. 高温低周疲劳寿命评价准则的探讨[J]. 压力容器, 2002, 19(6): 4-8 |
| 作者姓名： | 张文孝 陈飞 郭成璧 于强 |
| 作者单位： | 1. 大连水产学院机械系 2. 大连理工大学动力系 3. 大连港务局大港公司 |
| 摘 要： | 通过对4种不同缺口形式的2.5Cr1Mo钢材料圆柱形试件的高温低周疲劳行为的研究，用当量应变范围准则，当量塑性应变能准则和当量总应变能准则评价多维应力状态下的高温低周疲劳寿命。可见：用当量准则评价高温评价高温低周疲劳寿命是有实验和理论依据的，但仍需做进一步分析探讨。 |
| 关 键 词： | 高温低周疲劳 当量应变范围 当量性应变能 当量总应变能 疲劳寿命 多维应力状态 |
| 文章编号： | 1001-4837(2002)06-0004-05 |
| 修稿时间： | 2002-04-23 |
Discussion of the Evaluating Criterion of High Temperature Low Cycle Fatigue |
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| Dalian Fisheries University. Discussion of the Evaluating Criterion of High Temperature Low Cycle Fatigue[J]. Pressure Vessel Technology, 2002, 19(6): 4-8 | |
| Authors: | Dalian Fisheries University |
| Affiliation: | Dalian Fisheries University Department of Mechanical Engineering Zhang Wen-xiao Dalian University of Technology Department of Power Engineering Chen Fei Guo Cheng-bi Dalian Port Dagang Harbor Company Yu Qiang |
| Abstract: | By the investigation of the high temperature low cycle fatigue behavior of the 4 kinds of notched cylindrical specimens made of 2.25Cr1Mo steel, the high temperature low cycle fatigue life was evaluated by the criterions of equivalent strain range, equivalent plastic strain energy and equivalent gross energy. So it has its experimental and theoretical foundation with equivalent criterion evaluating high temperature low cycle fatigue life, but further investigation is still needed. |
| Keywords: | high temperature low cycle fatigue equivalent strain range equivalent plastic strain energy energy equivalent gross strain energy fatigue life multiaxial stress state |
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