{"title":"Parametric investigation on stepped-lap scarf repair of wind turbine blade spar cap","authors":"Wen Xin, Bo Zhou, Hui Li, Xiao-long Lu, Ning Sun","doi":"10.1007/s12206-024-0707-7","DOIUrl":null,"url":null,"abstract":"<p>A prediction method based on the stepped-lap repair strength was proposed to study the parameterization of repairing the damaged wind turbine blade spar cap structure. First, the numerical analysis model of spar cap damage was established based on the continuous damage mechanics model, the puck criterion, and the cohesive zone model. Then, the influence of the repair parameters on the repair strength was studied based on the stepped-lap repair theory. Finally, the optimal repair scheme was determined by a strength recovery rate analysis. Results demonstrate that increasing lap length and the number of overply layers can enhance the load-carrying capacity of the stepped-lap repair structure within a certain range. Lap length and the number of overply layers substantially affect the bearing capacity of the spar cap. The influence of the overply layer is slightly higher than that of the lap length, while the lap width effect remains relatively minor.</p>","PeriodicalId":16235,"journal":{"name":"Journal of Mechanical Science and Technology","volume":"428 1","pages":""},"PeriodicalIF":1.5000,"publicationDate":"2024-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Mechanical Science and Technology","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1007/s12206-024-0707-7","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}
引用次数: 0
Abstract
A prediction method based on the stepped-lap repair strength was proposed to study the parameterization of repairing the damaged wind turbine blade spar cap structure. First, the numerical analysis model of spar cap damage was established based on the continuous damage mechanics model, the puck criterion, and the cohesive zone model. Then, the influence of the repair parameters on the repair strength was studied based on the stepped-lap repair theory. Finally, the optimal repair scheme was determined by a strength recovery rate analysis. Results demonstrate that increasing lap length and the number of overply layers can enhance the load-carrying capacity of the stepped-lap repair structure within a certain range. Lap length and the number of overply layers substantially affect the bearing capacity of the spar cap. The influence of the overply layer is slightly higher than that of the lap length, while the lap width effect remains relatively minor.
期刊介绍：
The aim of the Journal of Mechanical Science and Technology is to provide an international forum for the publication and dissemination of original work that contributes to the understanding of the main and related disciplines of mechanical engineering, either empirical or theoretical. The Journal covers the whole spectrum of mechanical engineering, which includes, but is not limited to, Materials and Design Engineering, Production Engineering and Fusion Technology, Dynamics, Vibration and Control, Thermal Engineering and Fluids Engineering.
Manuscripts may fall into several categories including full articles, solicited reviews or commentary, and unsolicited reviews or commentary related to the core of mechanical engineering.
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