| 弹簧表面裂纹应力强度因子有限元分析 |
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| 引用本文： | 绳义千,肖绯雄.弹簧表面裂纹应力强度因子有限元分析[J].铁道机车车辆,2010,30(3):60-63. |
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| 作者姓名： | 绳义千 肖绯雄 |
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| 作者单位： | 西南交通大学,牵引动力国家重点实验室,成都610031 |
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| 摘 要： | 机车车辆弹簧表面都或多或少存在着一些裂纹,目的是为了定量描述裂纹对弹簧的影响规律。运用有限元分析软件,采用20节点单元、裂纹前缘单元采用1/4节点单元,对弹簧施加不同载荷以及改变裂纹的长度和深度进行求解,从而得到各裂纹前缘的应力强度因子。计算并分析了弹簧表面裂纹深度、长度同应力强度因子之间的关系。
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| 关 键 词： | 裂纹 有限元 节点单元 应力强度因子 弹簧 |
Finite Element Analysis for Stress Intensity Factor of Spring Surface Crack |
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| SHENG Yi-qian,XIAO Fei-xiong.Finite Element Analysis for Stress Intensity Factor of Spring Surface Crack[J].Railway Locomotive & Car,2010,30(3):60-63. |
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| Authors: | SHENG Yi-qian XIAO Fei-xiong |
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| Institution: | (Traction Power State Key Laboratory,Southwest Jiaotong University,Chengdu 610031 Sichuan,China) |
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| Abstract: | The springs＇ surface of vehicle has some cracks more or less,so the purpose of this text is to describe the rules that cracks have an affect on spring.In the paper,Finite Element Analysis Software is employed,20 nodes element is adopted in the analysis and 1/4 nodes element is introduced to analyze the front of cracks.By means of applying different load and changing the length and depth of the crack,the stress intensity factor of the cracks＇ front can be obtained.Calculate and analyse the relationship between stress intensity factor and the depth and length of cracks. |
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| Keywords: | crack finite element nodes element stress intensity factor spring |
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