| 压力容器用钢的低周疲劳行为与常规机械性能的关系 |
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| 引用本文： | 林金平,杨康祖,吴东棣.压力容器用钢的低周疲劳行为与常规机械性能的关系[J].医学教育探索,1986(5). |
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| 作者姓名： | 林金平 杨康祖 吴东棣 |
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| 作者单位： | 华东化工学院机械工程系
(林金平，杨康祖)，华东化工学院机械工程系(吴东棣) |
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| 摘 要： | 本文从疲劳应变能的角度推导出了应变-寿命关系式。通过测定常规机械性能,就可预测材料在不同应变幅下的低周疲劳寿命;讨论了低周疲劳抗力与常规机械性能之间的关系,指出了材料本身对低周疲劳行为的主要影响因素;提出了选择抗低周疲劳材料的基本原则。
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| 关 键 词： | 疲劳 材料力学性质 疲劳试验 疲劳寿命 裂纹扩展 低周疲劳 |
A study on the relationship between low-cycle fatigue behavior of pressure vessel steel and their regular mechanical properties |
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| Lin Jinping,Yang Kangzu and Wu Dongdi.A study on the relationship between low-cycle fatigue behavior of pressure vessel steel and their regular mechanical properties[J].Researches in Medical Education,1986(5). |
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| Authors: | Lin Jinping Yang Kangzu and Wu Dongdi |
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| Institution: | Department of Mechanical Engineering |
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| Abstract: | Based on the principle of the strain energy in fatigue, two equations for the prediction of low-cycle fatigue life were derived. Using regular mechanical property data of metallic materials, the low-cycle fatigue life in different strain amplitudes can be predicted. The relationship between low-cycle fatigue resistance and regular mechanical properties was also discussed. The chief factors affecting the low-cycle fatigue life were pointed out too. Lastly, some proposals on the selection of materials are proposed. |
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| Keywords: | fatigue mechanical properties of materials fatigue test fatigue life crack propagation low-cycle fatigue |
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