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一种超高周疲劳寿命预测的新模型
发表时间:2012-08-15 浏览量:1683 下载量:718
全部作者: | 朱明亮,轩福贞,涂善东 |
作者单位: | 华东理工大学机械与动力工程学院 |
摘 要: | 在总结和比较现有疲劳寿命预测模型的基础上,提出基于应力水平、缺陷尺寸和位置的寿命预测模型。利用低强度Cr-Mo-V钢和高强度42CrMo钢的试验数据,对预测模型的有效性进行验证。结果表明:新模型预测疲劳寿命时数据分散性大幅降低,预测效果好。 |
关 键 词: | 固体力学;超高周疲劳;寿命预测;夹杂物 |
Title: | A new life prediction model for very high cycle fatigue |
Author: | ZHU Mingliang, XUAN Fuzhen, TU Shandong |
Organization: | School of Mechanical and Power Engineering, East China University of Science and Technology |
Abstract: | In this work, by comparing with existed fatigue life prediction models, a new model involving stress level, defect size and depth was proposed. The model was verified by using very high cycle fatigue results of a low strength Cr-Mo-V steel and a high strength 42CrMo steel. It was indicated that the model could correlate fatigue life very well as seen by the reduction of data scatter. |
Key words: | solid mechanics; very high cycle fatigue; life prediction; inclusion |
发表期数: | 2012年8月第15期 |
引用格式: | 朱明亮,轩福贞,涂善东. 一种超高周疲劳寿命预测的新模型[J]. 中国科技论文在线精品论文,2012,5(15):1483-1487. |

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