| 残余应力测定的围箍压痕法模拟 |
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| 引用本文： | 黄建明,李朝弟.残余应力测定的围箍压痕法模拟[J].上海力学,1997,18(1):38-43. |
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| 作者姓名： | 黄建明 李朝弟 |
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| 作者单位： | 清华大学工程力学系
(黄建明，李朝弟，王克鹏)，清华大学工程力学系(杨卫) |
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| 基金项目： | 清华大学青年教师科研基金，国家自然科学基金 |
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| 摘 要： | 本文从同工量测方法得到启发，提出了一种新型的残余应力测试方法－围箍压痕法。采用轴对称弹塑性有限元计算模拟了围箍压痕法测量结构残余应力的力学过程，得到了围箍压痕时不同残余应力程度下材料的变形，塑性区和接触应力分布。
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| 关 键 词： | 残余压力 弹塑性 有限元 微硬度法 |
NUMERICAL SIMULATION ON MEASUREMENT OF RESIDUAL STRESS BY METHOD OF HOOP-STRESS |
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| Huang Jianming,Li Chaodi,Wang Kepeng,Yang Wei.NUMERICAL SIMULATION ON MEASUREMENT OF RESIDUAL STRESS BY METHOD OF HOOP-STRESS[J].Chinese Quarterly Mechanics,1997,18(1):38-43. |
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| Authors: | Huang Jianming Li Chaodi Wang Kepeng Yang Wei |
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| Abstract: | In this paper, in the view of microhardness measurement, a new method to measure the residual stress, named the method of hoop-stress is investigated. By the finite element method considering axisymrnetrical elastic-plasticity the process of measurement of the residual stress on structures is simulated. The simulation illustrates the deformation, the plastic zone and the pressure distribution in the contact zone and it also shows the influences of the residual stresses on the distribution, the total pressure and the microhardness versus the residual stress and indentation depth curves. Furthermore, the influence of the residual stress to the surface strain of the material in the elastic zone is studied. |
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| Keywords: | residual stress hoop-stress elasticplastic finite element method microhardness |
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