| 表面裂纹Ⅰ型应力强度因子间的互相作用及影响规律 |
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| 引用本文： | 王庆丰,崔维成.表面裂纹Ⅰ型应力强度因子间的互相作用及影响规律[J].江苏科技大学学报(社会科学版),2009,23(6):475-478. |
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| 作者姓名： | 王庆丰 崔维成 |
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| 作者单位： | 王庆丰(江苏科技大学,船舶与海洋工程学院,江苏,镇江,212003);崔维成(中国船舶科学研究中心,江苏,无锡,214082) |
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| 摘 要： | 基于有限元软件France-3D对含有多个裂纹的平板进行应力强度因子计算．通过定义基础裂纹、干扰裂纹以及干扰参数r，α，β和2b等，给出了随干扰参数r，α，β改变，干扰裂纹对基础裂纹应力强度因子影响的λ-4，λ-α理曲线，并分析其规律，其结果可为工程应用参考．
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| 关 键 词： | 多裂纹 应力强度因子 基础裂纹 干扰裂纹 |
Interaction and influence of I-stress intensity factor of surface cracks |
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| Institution: | Wang Qingfeng, Cui Weicheng(1. School of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang Jiangsu 212003 (2. China Ship Scientific Research Center, Wuxi Jiangsu 214082, China) |
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| Abstract: | Based on the finite element software France-3D, stress intensity factor of plate with multi-cracks was calculated. Basic crack, disturbing crack, and disturbing parameters including r,α,βand 2b were defined. With the changes of distribution parameters r,α,and β, λ-r curve and λ-α curve, which showed the influences of disturbing cracks to basic crack stress intensity factor, were given. The calculated results can be used and referenced for projects. |
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| Keywords: | multi-cracks stress intensity factor basic cracks disturbing crack |
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