| 应变曲线在零件疲劳寿命设计时的应用 |
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| 引用本文： | 高频,牟伟. 应变曲线在零件疲劳寿命设计时的应用[J]. 机械研究与应用, 2011, 0(4): 46-47 |
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| 作者姓名： | 高频 牟伟 |
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| 作者单位： | 中船重工集团七一○研究所,湖北宜昌,443003 |
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| 摘 要： | 首先对零件产生低周疲劳的原因及其特点进行了简要叙述,说明了应用σ-N曲线无法描述零件低周疲劳寿命的变化规律.在工程设计应用中通常采用σ-N曲线来反映零件低周疲劳的实际寿命变化的规律.扼要论述了通过实践验证及对多种不同静强度的材料进行等应变幅疲劳试验,归纳出适用于零件低周疲劳的通用公式.并用实例验证了其估算过程,对计算结...
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| 关 键 词： | 低周疲劳 应变曲线 疲劳寿命 |
Application of fatigue life design of strain curve in the part |
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| Gao Pin,Mu Wei. Application of fatigue life design of strain curve in the part[J]. Mechanical Research & Application, 2011, 0(4): 46-47 |
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| Authors: | Gao Pin Mu Wei |
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| Affiliation: | Gao Pin,Mu Wei(No.710 institute of China ship heavy industry group corporation,Yichang Hubei 443004 China) |
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| Abstract: | The reasons and the characteristics of low cycle fatigue of the parts are briefly explained in this paper and also ana- lyses the variation nile of low cycle fatigue life of the parts with applying σ-N curve. The application in engineering design u- sually adopts σ-N line to reflect the variation rule of low cycle fatigue life of the parts. The author also sums up the universali- ty which can be applied to low cycle fatigue of the parts through practice and strain amplitudes experiments which can be carried out to deal with many materials with different calm strength, then verifies the process assessment and discusses the calculation results. |
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| Keywords: | low cycle fatigue strain curve fatigue life |
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