| 柔性接头界面端角点应力奇异性 |
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| 引用本文： | 安春利,任全彬,王铁军,赵桂平.柔性接头界面端角点应力奇异性[J].固体火箭技术,2012,35(3):391-395. |
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| 作者姓名： | 安春利 任全彬 王铁军 赵桂平 |
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| 作者单位： | 1. 中国航天科技集团公司四院四十一所,西安,710025
2. 西安交通大学,西安,710049 |
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| 摘 要： | 基于界面理论,建立了柔性接头增强件、弹性件两种结合材料形成的界面端角点附近奇异应力场方程,依据界面连续条件和自由边界条件,得到了与奇异应力场关联的特征值λ的线性齐次方程组,通过该方程组的求解和公式推导,给出了柔性接头界面端角点附近含应力强度系数的奇异应力场和位移场；并根据特征值λ的取值范围,获得了应力奇异性消失的柔性接...
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| 关 键 词： | 柔性接头 应力奇异性 界面端角点 特征值 应力强度系数 |
Stress singularity of flexible joint in combined material interface corner |
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| AN Chun-li
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REN Quan-bin
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WANG Tie-jun
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ZHAO Gui-ping.Stress singularity of flexible joint in combined material interface corner[J].Journal of Solid Rocket Technology,2012,35(3):391-395. |
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| Authors: | AN Chun-li REN Quan-bin WANG Tie-jun ZHAO Gui-ping |
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| Institution: | 1.The 41st Institute of the Fourth Academy of CASC,Xi’an 710025,China; 2.Xi’an Jiaotong University,Xi’an 710049,China) |
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| Abstract: | On basis of the mechanics of interface,singular stress field of interface corner created by reinforcement and elastomer of flexible joint was established.According to interface continuous condition and free boundary condition,the linear equation group of characteristic value λ which is related to the singular stress field was obtained.Then,singular stress field and displacement field which include stress intensity coefficient in interface corner of flexible joint were found through solving equation group and deducing formula.At the same time,based on the range of λ value,the selection of reinforcement and elastomer as well as geometrical angle with the stress singularity disappearing were presented.The results of singular stress field gained from calculation and finite element method verify the correctness of the analytical solution in this report. |
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| Keywords: | flexible joint stress singularity interface corner characteristic value stress intensity coefficient |
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