| 山形切口三点弯曲试样的SIF柔度标定及应用 |
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| 引用本文： | 郭海燕,魏嘉荃.山形切口三点弯曲试样的SIF柔度标定及应用[J].实验力学,1992,7(4):383-386. |
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| 作者姓名： | 郭海燕 魏嘉荃 |
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| 作者单位： | 大庆石油学院，大庆石油学院，大庆石油学院 |
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| 摘 要： | 本文对三组不同比例尺寸的山形切口三点弯曲试样,进行了直接实验柔度标定,由此确定了应力强度因子(SIF)系数表达式.以此标定结果,测定了工具铜 T10A 的断裂韧度 K_(ICV),并同 GB4161-84方法测定的断裂韧度 K_(IC)进行了比较,二者符合较好.
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| 关 键 词： | 柔度标定 应力强度因子 断裂韧度 |
Compliance Calibration and Application of SIF of Three Point Bending Specimens with Chevron-Notched |
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| Guo Haiyan Wei Jiaquan Zhong Boming.Compliance Calibration and Application of SIF of Three Point Bending Specimens with Chevron-Notched[J].Journal of Experimental Mechanics,1992,7(4):383-386. |
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| Authors: | Guo Haiyan Wei Jiaquan Zhong Boming |
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| Institution: | Daqing Petroleum Institute |
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| Abstract: | The compliance of chevron-notched 3-point bending specimens are cali- brated experimentally by means of three groups of specimens in different scales.The ex- pression of correction coefficient of stress intensity factor is obtained.According to the re- sults of calibration,the fracturc toughness K_(ICV)of T10A steel can be determined and this value is in good agreement with fracture toughness K_(IC)measured according to standard method GB4161-84. |
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| Keywords: | chevron-notched three-point bend specimen compliance calibration stress intensity factor fracture toughness |
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