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Analytical and numerical study concerning the behaviour of single-sided bonded patch repairs

机译:有关单面粘结补丁修复行为的分析和数值研究

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Adhesive bonded joints are used in the assembling of structural parts, especially of those which are made from dissimilar materials. Lightweight fibre reinforced polymer composites and other adhesive bonded components represent a major proportion of a modern aircraft. Bonded patch repair technology has been widely used to repair cracked thin-walled structures to extend their service life, because a correctly executed repair significantly enhances the structural performance.In practice, the single-sided bonded patch repair is the most used because a good solution like the double-sided repair may not be an option if the access to the structure is only available from one side.This paper presents a relatively simple and effective design procedure for the single strapped bonded joints. Also, the influence of various geometrical parameters of the joint is evaluated. The analytical development is validated based on nonlinear finite element analyses.
机译:胶接接头用于组装结构零件,尤其是那些由异种材料制成的零件。轻质纤维增强的聚合物复合材料和其他粘合组件代表了现代飞机的主要部分。粘结补丁修复技术已被广泛用于修复破裂的薄壁结构以延长其使用寿命,因为正确执行的修复可以显着提高结构性能。实际上,单面粘结补丁修复是最常用的方法,因为它是一种好的解决方案如果只能从一侧访问结构,则可能无法进行双面修复。本文提出了一种用于单捆扎粘结接头的相对简单有效的设计程序。同样,评估了关节的各种几何参数的影响。基于非线性有限元分析验证了分析方法的发展。

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