Abstract In this study, a Tubular-Lap Joint (TLJ) damage model for Titanium (Ti) and Carbon Fiber Reinforced Polymer (CFRP) is developed to study novel hybrid adhesive joints. The damage model is performed by Finite Element Analysis using Cohesive Zone Modeling to understand stress analysis and investigate damage evolution of failure mechanisms, namely delamination, adhesive and cohesive failure. Results from the numerical damage model are validated with published experimental data from the literature to determine the accuracy of the model. The damage model is further employed to study novel hybrid adhesive joints, utilizing the benefits of brittle (high stiffness and high strength) and ductile (high elongation and high fracture toughness) adhesives to improve CFRP-Ti TLJ performances. This study verifies the importance of geometry considerations for adhesive joints and provides solutions to increase joint strength by utilizing a hybrid adhesive approach.

中文翻译：

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使用混合粘合剂设计的碳纤维增强聚合物和钛管搭接接头的损伤和强度分析

摘要 在这项研究中，开发了钛 (Ti) 和碳纤维增强聚合物 (CFRP) 的管搭接接头 (TLJ) 损伤模型，以研究新型混合粘合接头。损伤模型是通过有限元分析使用内聚区建模来执行的，以了解应力分析并研究失效机制的损伤演变，即分层、粘附和内聚失效。数值损伤模型的结果通过文献中已发表的实验数据进行验证，以确定模型的准确性。损伤模型进一步用于研究新型混合粘合剂接头，利用脆性（高刚度和高强度）和韧性（高伸长率和高断裂韧性）粘合剂的优点来改善 CFRP-Ti TLJ 性能。