| 复合材料胶结修补缺损金属结构的力学性能研究 |
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| 引用本文： | 白江波,熊峻江,李绍春.复合材料胶结修补缺损金属结构的力学性能研究[J].材料工程,2009(Z2). |
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| 作者姓名： | 白江波 熊峻江 李绍春 |
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| 作者单位： | 北京航空航天大学飞行器运用系; |
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| 基金项目： | 航空基金资助项目(05A51011) |
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| 摘 要： | 进行了未修补与复合材料胶结修补的含穿透性裂纹金属试样的力学性能实验,测定了失效载荷,并分析了失效机理;采用实体层单元模拟复合材料补片和胶层,建立了复合材料胶接修补缺损金属结构的三维有限元分析模型,数值模拟了两种试样的载荷-位移曲线和应力分布,预测了破坏位置,与实验现象吻合良好。研究发现,与未修补的试样相比,经复合材料修补后的缺损结构承载能力得到明显提高。
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| 关 键 词： | 复合材料 胶接修补 缺损结构 数值模拟 |
Mechanical Properties of Cracked Metallic Structure Repaired with Adhesive Bonding Composite Patch |
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| BAI Jiang-bo,XIONG Jun-jiang,LI Shao-chun.Mechanical Properties of Cracked Metallic Structure Repaired with Adhesive Bonding Composite Patch[J].Journal of Materials Engineering,2009(Z2). |
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| Authors: | BAI Jiang-bo XIONG Jun-jiang LI Shao-chun |
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| Affiliation: | BAI Jiang-bo,XIONG Jun-jiang,LI Shao-chun(Aircraft Department,Beihang University,Beijing 100191,China) |
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| Abstract: | Mechanical properties of cracked metallic specimen repaired with adhesive bonding composite patch and un-repaired specimen are investigated experimentally and numerically.The failure loads are determined and failure mechanism is discussed from the experimental observation.3-D finite element(FE)model is established to simulate cracked structure repaired with adhesive bonding composite patch.Solid layered element is introduced to simulate the patch and the bond layer as a layer of layered element.Numerical an... |
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| Keywords: | composites adhesive bonding cracked structure numerical analysis |
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