| 能容纳二次应力的J积分断裂参量的实验验证 |
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| 引用本文： | 潘红良,李培宁.能容纳二次应力的J积分断裂参量的实验验证[J].华东理工大学学报(自然科学版),1996,22(2):165-169. |
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| 作者姓名： | 潘红良 李培宁 |
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| 作者单位： | 华东理工大学机械工程系 |
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| 基金项目： | “八五”国家重点科技攻关课题 |
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| 摘 要： | 用带焊接残余应力的焊接试板对文题进行了研究。结果表明：用修正Ｊ积分作为裂断裂参量建立的断裂准则，测得的缺口和裂纹断裂预测值与实验实测值非常接近，其误差在１０％之内。
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| 关 键 词： | 断裂能量 断裂力学 二次应力 J积分 |
Experimental Validation of the Modified J Fracture Parameter in the Presence of secondary Stresses |
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| Pan Hongliang and Li Peining.Experimental Validation of the Modified J Fracture Parameter in the Presence of secondary Stresses[J].Journal of East China University of Science and Technology,1996,22(2):165-169. |
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| Authors: | Pan Hongliang and Li Peining |
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| Abstract: | The modified J-integral fracture parameter was evaluated experimentally by CCP specimens with welding residual stresses, results showed that the evaluated notch(or crack)initiation loads based on the fracture criterion,was close to the determined values.Errors between them are less than 10%. |
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| Keywords: | welding residual stress fracture parameter fracture criterion experimental valification |
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