| 一种新的多点法及其在应力强度因子计算中的应用 |
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| 引用本文： | 陈枫. 一种新的多点法及其在应力强度因子计算中的应用[J]. 中南大学学报(自然科学版), 1987, 0(3) |
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| 作者姓名： | 陈枫 |
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| 作者单位： | 中南矿冶学院数理系 |
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| 摘 要： | 本文提出了一种简捷的三参数多点法,即以裂纹真实方向与测量方向之间的夹角为未知参数的多点法,从而较好地解决了Sanford多点法在裂纹定位不准时计算K_1所带来的误差。该法不仅计算简便,而且具有较高的精度。
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| 关 键 词： | 应力强度因子 光弹性试验 计算方法 最小二乘法 |
A NEW MULTI--POINT METHOD AND ITS APPLICATION TOSTUDY ON STRESS INTENSITY FACTOR K_1 |
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| Chen Feng. A NEW MULTI--POINT METHOD AND ITS APPLICATION TOSTUDY ON STRESS INTENSITY FACTOR K_1[J]. Journal of Central South University:Science and Technology, 1987, 0(3) |
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| Authors: | Chen Feng |
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| Affiliation: | Department of Mathematics and Physics |
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| Abstract: | A three-parameter method based on the least-square technique has been proposed in this paper. The error in calculating the stress intensity factor K_1 can be diminished by using the angle between the correct and error directions of crack as an unknown parameter. This method is simpler to and more accurate than Sanford method. |
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| Keywords: | stress intensity factor photoelastic experiment computational method least square methods |
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