| 用光弹性贴片和云纹相结合的方法测定弹塑性应变场的实验研究 |
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| 引用本文： | 傅承诵,孙远慧,涂令康.用光弹性贴片和云纹相结合的方法测定弹塑性应变场的实验研究[J].清华大学学报(自然科学版),1985(1). |
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| 作者姓名： | 傅承诵 孙远慧 涂令康 |
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| 作者单位： | 工程力学系
(傅承诵，孙远慧)，工程力学系(涂令康) |
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| 摘 要： | 本文用光弹性贴片和云纹相结合的方法测定带中心圆孔、边半圆缺口铝合金板和不锈钢焊缝在单向拉伸时的弹塑性应变场；获得了应变集中系数和弹塑性边界区随载荷变化的规律；揭示出了光弹性贴片的增强效应和厚度效应的影响，给出了修正曲线。
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| 关 键 词： | 贴片 云纹 弹塑性应变场 |
Measurement of the Elastic-plastic Strain Field by Use of Photoelastic Coating Moire |
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| Fu Chengsong,Sun Yuanhui,Tu Lingkang,.Measurement of the Elastic-plastic Strain Field by Use of Photoelastic Coating Moire[J].Journal of Tsinghua University(Science and Technology),1985(1). |
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| Authors: | Fu Chengsong Sun Yuanhui Tu Lingkang |
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| Institution: | Department of Engineering Mechanics |
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| Abstract: | This paper deals with an approach of using photoelastic coating combined with moire to measure the elastic-plastic strain field of flat aluminium alloy bars with a central hole or two edge-semicircular-notches and that of a rustless steel X-butt welded joint under uniaxial tension. The variation of the strain concentration factors and the yield boundaries with loading levels were determined. The reinforcing influence and thickness effects of the photoelastic coating was revealed and correction curves were obtained. |
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