【摘要】 为推进紫外固化技术在复合材料结构修复中的应用，制备了紫外固化复合材料对含有人工缺陷试样进行了修复。采用Abaqus有限元软件对CFRP紫外固化修复结构进行了仿真分析，并进行试验对比，探究了不同补片长度的修复件在紫外固化修复后拉伸工况下的承载能力和失效模式。结果表明：在拉伸工况下，随着补片长度的增加，紫外固化修复的样件拉伸强度逐渐增大，直到补片的长度与通孔的直径的比值为7时，后续随着补片长度的持续增加，其拉伸强度基本保持不变。更多还原

【Abstract】 To support the broader application of ultraviolet(UV) curing technology in the repair of composite structures, UV-cured composite patches were applied to specimens containing artificial defects. The repaired carbon fibre reinforced plastic(CFRP) structures were analysed using ABAQUS finite element software and validated through experimental testing. The study examined the load-bearing capacity and failure modes of repaired specimens under tensile loading, focusing on the effect of patch length. Results indicate that the tensile strength of the UV-cured repairs increases with patch length up to a patch-to-hole diameter ratio of 7. Beyond this ratio, further increases in patch length do not yield significant improvements in tensile strength, suggesting an optimal patch size for structural reinforcement.更多还原