| 复合材料补片参数对裂纹尖端应力强度因子的影响 |
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| 引用本文： | 张移山,华庆祥.复合材料补片参数对裂纹尖端应力强度因子的影响[J].机械强度,2004,26(Z1):100-103. |
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| 作者姓名： | 张移山 华庆祥 |
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| 作者单位： | 北京航空工程技术研究中心,北京,100076 |
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| 摘 要： | 利用有限元法对复合材料补片修补前后的铝合金薄板的裂纹尖端应力强度因子KI进行研究,分析各类补片参数对裂纹尖端应力强度因子的影响.结果表明,在正确选择复合材料补片的参数后,修补后铝合金板裂纹尖端的应力强度因子有显著地下降.
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| 关 键 词： | 复合材料补片 应力强度因子 裂纹 有限元 |
| 修稿时间： | 2004年4月28日 |
EFFECT OF THE COMPOSITE PATCH PARAMETERS ON STRESS INTENSITY FACTORS NEAR THE CRACK TIP |
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| ZHANG YiShan,HUA QingXiang.EFFECT OF THE COMPOSITE PATCH PARAMETERS ON STRESS INTENSITY FACTORS NEAR THE CRACK TIP[J].Journal of Mechanical Strength,2004,26(Z1):100-103. |
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| Authors: | ZHANG YiShan HUA QingXiang |
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| Abstract: | Composite patches bonded to defective metallic aircraft structures have been shown to be a low cost, effective method for extending the service life and maintaining high structural efficiency. The stress intensity factors near the crack tip before and after bonding have been calculated using the finite element method. The effect of the composite patch parameters on stress intensity factors near the crack tip has been discussed. The results show that the stress intensity factor after bonding would decrease obviously if the composite patch parameters were selected properly. |
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| Keywords: | Composite patches Stress intensity factor Crack Finite element method |
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