| 利用材料拉压异必无损检测残余应力的新方法 |
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| 引用本文： | 邢永明,雷振坤,戴福隆,温秀梅.利用材料拉压异必无损检测残余应力的新方法[J].力学学报,2001,33(2):264-269. |
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| 作者姓名： | 邢永明 雷振坤 戴福隆 温秀梅 |
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| 作者单位： | 1. 内蒙古工业大学基础部,
2. 清华大学工程力学系, |
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| 基金项目： | 国家自然科学基金资助项目!（19662001） |
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| 摘 要： | 用实验手段研究了若干种材料在弹性范围内的拉压异性，发现某些材料的拉伸弹性模量与压缩弹必模量相差高达60%，从分析拉压异性产生的机理，描述了拉压导师性材料的应力应变关系，在此基础上提出了一种基于材料拉压异性的残余应力无损检测新方法，并进行了弯曲和扭转残余应力的典型实验，结果证明在某些条件下它是十分有效的，具有简便、精度高的特点。
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| 关 键 词： | 残余应力 无损检测 拉压异性 材料性能 |
| 修稿时间： | 1999年8月30日 |
A NOVEL METHOD FOR NONDESTRUCTIVE MEASUREMENT OF RESIDUAL STRESS MAKING USE OF DIFFERENT MATERIAL PROPERTIES IN TENSION AND COMPRESSION |
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| Xing Yongming,Lei Zhenkun,Dai Fulong,Wen Xiumei.A NOVEL METHOD FOR NONDESTRUCTIVE MEASUREMENT OF RESIDUAL STRESS MAKING USE OF DIFFERENT MATERIAL PROPERTIES IN TENSION AND COMPRESSION[J].chinese journal of theoretical and applied mechanics,2001,33(2):264-269. |
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| Authors: | Xing Yongming Lei Zhenkun Dai Fulong Wen Xiumei |
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| Abstract: | Different material properties in tension and compression (DMPTC) within elastic range are studied experimentally. Up to 60% difference of elastic modulus in tension and compression for several materials may exit. The difference can be made use of measuring residual stress in structures nondestructively. An experimental method for measurement of residual stress based on this difference is presented. The constitutive relationships under considering DMPTC are described. The model tests show the validity of this method. |
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| Keywords: | residual stress nondestructive measurement material property constitutive relationship |
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