Influence of adherend’s delamination on the response of single lap and socket tubular adhesively bonded joints subjected to torsion
Influence of adherend’s delamination on the response of single lap and socket tubular adhesively bonded joints subjected to torsion
复制标题
被粘物分层对单搭接和承窝管状粘接接头扭转响应的影响
DOI：
10.1016/j.compstruct.2010.12.009
复制
发表时间：
2011
影响因子：
6.3
通讯作者：
F. Taheri
中科院分区：
文献类型：
--
作者：
R. A. Esmaeel;F. Taheri
管状胶接接头广泛应用于石油天然气、航空航天、汽车等行业。这种接头通常用于匹配不同的材料。复合材料由于其上级比强度和刚度以及高耐腐蚀性，也已广泛用于形成管状部件。当复合材料通过粘合剂与其他材料（例如金属）配合时，由于配合被粘物的机械性能不匹配，粘合剂层中的应力集中变得更加恶化，从而提出了进一步的挑战。此外，在复合粘附体中的分层的存在下，可以显着地影响在粘合剂层内的应力分布;因此，在分层的存在下的粘合剂层的应力的评估是重要的，因此形成了本工作的主要目标。采用商用有限元软件ABAQUS对含分层复合材料被粘体的单搭接和承插搭接接头的性能进行了全面的参数研究。研究了复合材料与复合材料、复合材料与铝胶接接头中几个参数对胶内应力分布的影响。所考虑的参数包括分层的位置和长度，复合材料的力学性能和复合材料粘附体的纤维取向。结果表明，通过厚度分层的存在影响的结构响应的单搭接和承插搭接接头的不同程度，取决于分层的位置。此外，有趣的是，分层的存在导致在两个关节配置中的粘合剂剥离和剪切应力显着降低。
Tubular adhesively bonded joints are widely used in many industries such as the oil-and-gas, aerospace and automotive. Such joints are often used to mate dissimilar materials. Composite materials, because of their superior specific strength and stiffness and high resistance to corrosion, have also been widely used to form tubular components. When composites are mated to other materials (such as metals) by adhesives, the stress concentration in the adhesive layer becomes even more exasperated due to the mismatch in the mechanical properties of the mating adherends, thus posing further challenges. Moreover, the presence of a delamination in the composite adherend can significantly influence the stress distribution within the adhesive layer; therefore, the assessment of the adhesive layer stresses in the presence of a delamination is of importance, thus forms the main objective of the present work. A comprehensive parametric study, using the commercial finite element code ABAQUS, was conducted to investigate the performance of single lap and socket adhesively bonded joints made of composite adherends hosting a delamination. The influence of several parameters on the stress distribution within the adhesive in joints mating composite to composite and composite to aluminum adherends were investigated. The parameters considered included the location and length of the delamination, composite material’s mechanical properties and fiber orientation of the composite adherend. Results show that the existence of a through-the-thickness delamination affects the structural response of both the single lap and socket adhesively bonded joints by various degrees, depending on the locality of the delamination. Moreover, interestingly, the presence of a delamination resulted in a significant decrease in the adhesive peel and shear stresses in both joint configurations.