{"title":"Tensile Properties of Scarf-Repaired Composite Laminates with Bonding Defects","authors":"Jinxin DENG, Wenjun HUANG, Xiaoquan CHENG","doi":"10.1007/s10443-024-10286-1","DOIUrl":null,"url":null,"abstract":"<div><p>Scarf repair is a common repair method for composite laminate structures. Poor workmanship may cause bonding defects in the repair area. In this paper, the tensile properties of scarf-repaired composite laminates with three types of adhesive pore defects were studied by finite element method, and the effects of defect type, area and location were discussed. The results indicate that adhesive pores lead to local stress concentrations, significantly reducing the damage initiation load of the adhesive and laminate, but have limited influence on the initial stiffness and ultimate load of the structure. Pore defects alter the adhesive damage propagation mode but do not change the ultimate failure mode of the structure. Larger defect areas (porosity) result in lower structural tensile performance, and defects located in high-stress regions cause earlier damage initiation. Different types of adhesive defects exhibit varying effects on structural tensile performance..</p></div>","PeriodicalId":468,"journal":{"name":"Applied Composite Materials","volume":"32 2","pages":"575 - 597"},"PeriodicalIF":2.3000,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Composite Materials","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s10443-024-10286-1","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, COMPOSITES","Score":null,"Total":0}
引用次数: 0
Abstract
Scarf repair is a common repair method for composite laminate structures. Poor workmanship may cause bonding defects in the repair area. In this paper, the tensile properties of scarf-repaired composite laminates with three types of adhesive pore defects were studied by finite element method, and the effects of defect type, area and location were discussed. The results indicate that adhesive pores lead to local stress concentrations, significantly reducing the damage initiation load of the adhesive and laminate, but have limited influence on the initial stiffness and ultimate load of the structure. Pore defects alter the adhesive damage propagation mode but do not change the ultimate failure mode of the structure. Larger defect areas (porosity) result in lower structural tensile performance, and defects located in high-stress regions cause earlier damage initiation. Different types of adhesive defects exhibit varying effects on structural tensile performance..
期刊介绍：
Applied Composite Materials is an international journal dedicated to the publication of original full-length papers, review articles and short communications of the highest quality that advance the development and application of engineering composite materials. Its articles identify problems that limit the performance and reliability of the composite material and composite part; and propose solutions that lead to innovation in design and the successful exploitation and commercialization of composite materials across the widest spectrum of engineering uses. The main focus is on the quantitative descriptions of material systems and processing routes.
Coverage includes management of time-dependent changes in microscopic and macroscopic structure and its exploitation from the material''s conception through to its eventual obsolescence.
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