| 有限加筋板边界效应对应力强度因子的影响 |
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| 引用本文： | 姜翠香,李卓球,李克勤.有限加筋板边界效应对应力强度因子的影响[J].武汉理工大学学报,2006,28(7):75-78. |
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| 作者姓名： | 姜翠香 李卓球 李克勤 |
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| 作者单位： | [1]武汉理工大学理学院,武汉430070 [2]湖北工业大学机械工程学院,武汉430068 |
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| 基金项目： | 中国船舶重工集团公司资助项目 |
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| 摘 要： | 分析了合裂纹损伤的有限加筋板边界效应对裂纹尖端应力强度因子的影响，得到裂纹尖端应力强度因子随结构尺寸及边界条件的变化规律。结果表明，随着有限加筋板高宽比和筋、板相对刚度的增大，结构应力强度因子的下降幅度逐渐增大。当裂纹尖端离筋条越近时，这种现象越明显。
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| 关 键 词： | 有限加筋板 裂纹 高宽比 应力强度因子 |
| 文章编号： | 1671-4431(2006)07-0075-03 |
| 修稿时间： | 2006年1月8日 |
The Stress Intensity Factors of Finite Centrally Cracked Stiffened Plate Under Various Width and Height |
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| JIANG Cui-xiang,LI Zhuo-qiu,LI Ke-qin.The Stress Intensity Factors of Finite Centrally Cracked Stiffened Plate Under Various Width and Height[J].Journal of Wuhan University of Technology,2006,28(7):75-78. |
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| Authors: | JIANG Cui-xiang LI Zhuo-qiu LI Ke-qin |
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| Affiliation: | JIANG Cui-xiang~1,LI Zhuo-qiu~1,LI Ke-qin~2 |
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| Abstract: | The stress intensity factors of a finite centrally cracked stiffened plate under various boundary conditions were studied.A discrete stiffened plate model was constructed for investigation.Based on the complex function method,and after considering the condition of compatibility of displacement between the cracked plate and the stiffener,the final solution was obtained.Case studies were presented to illustrate the influence of geometric parameters and material parameters on the stress intensity factor at the crack tip.The numerical results show that the stress intensity factors decrease considerably with the increasing of relative stiffness between the stiffener and the cracked plate when the height-width ratio of the structures increases. |
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| Keywords: | finite stiffened plate crack height-width ratio stress intensity factor |
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