| 降低含多孔带板应力集中的有限元研究 |
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| 引用本文： | 郁大照,陈跃良,胡家林,段成美.降低含多孔带板应力集中的有限元研究[J].海军航空工程学院学报,2005,20(5):543-546. |
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| 作者姓名： | 郁大照 陈跃良 胡家林 段成美 |
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| 作者单位： | 海军航空工程学院研究生管理大队，海军航空工程学院青岛分院，海军航空工程学院研究生管理大队，海军航空工程学院青岛分院 山东烟台，264001，山东青岛，266041，山东烟台，264001，山东青岛，266041 |
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| 摘 要： | 在飞机和船体结构设计中,由于管路穿行、电缆布置等总体布局要求,在机翼梁的腹板上的指定位置开有多个孔,引发多个孔应力互相干扰。利用ANSYS有限元软件分别对圆孔间距、圆孔数和方形孔圆角半径对含孔带板应力集中系数的影响进行了分析,并与特定情况的试验值进行了对比,两者基本一致。研究结果表明:在孔数一定时,对于不同的孔间距,存在不同的最佳值,使应力集中系数得到最有利的缓和,且板宽对该最佳值的影响不大;对于方形孔, 当圆角半径为1/14方形孔边长时,对缓和应力集中系数最有利。文中并给出了特定情况下最有利于降低应力集中系数的孔的个数。
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| 关 键 词： | 应力集中 有限元 圆孔 方形孔 ANSYS |
| 修稿时间： | 2005年4月4日 |
Finite Element Study on Minimization Of Stress Concentration Factors of Finite Plate with Multi-holes |
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| YU Da-zhao,CHEN Yue-liang,HU Jia-lin,DUAN Cheng-mei.Finite Element Study on Minimization Of Stress Concentration Factors of Finite Plate with Multi-holes[J].Journal of Naval Aeronautical Engineering Institute,2005,20(5):543-546. |
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| Authors: | YU Da-zhao CHEN Yue-liang HU Jia-lin DUAN Cheng-mei |
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| Abstract: | The interference phenomena of multi-holes' stress occurres in various structures. This paper respectively studies the effect of hole interval, the number of circular hole and square hole corner's radius on the stress concentration factor (SCF) of finite plate with circular hole by software-ANSYS. The finite element results are good agreement with experiment values of specially designated circumstances. The results show that there exists different optimum values which can advantageously relax SCF for diverse hole intervals and fixed number of circular holes. The width of plate has little influence on this optimum value. It is most advantageous to relaxed SCF when the comer radius equal to 1/14 side length of square hole. The number of circular hole that is propitious to relax SCF also is given in paper. |
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| Keywords: | stress concentration finite element circular hole square hole ANSYS |
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