{"title":"Identification and modeling of sandwich composite for possible structural reuse after over 20 years working as aerodynamic shell","authors":"Ł. Pyrzowski, M. Rucka, A. Sabik","doi":"10.1016/j.compstruct.2025.119039","DOIUrl":null,"url":null,"abstract":"<div><div>This paper focuses on the identification and modeling of a sandwich composite material derived from a decommissioned wind turbine blade for potential structural reuse. The main research question was whether it is possible, based solely on the recovered material, to achieve an identification accurate enough to model the nonlinear response of the shell structure with satisfactory agreement. To address this, material parameters and constitutive laws were identified and validated separately for both the laminate and the foam. Three-point bending tests of sandwich beams were then performed and then simulated based on the previous assumptions and identifications. The comparison showed that the results of numerical analysis can be highly accurate when compared with experimental data. This confirms the validity of proposed methodology for material identification and material models.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"360 ","pages":"Article 119039"},"PeriodicalIF":7.1000,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Composite Structures","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0263822325002041","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/3/5 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"MATERIALS SCIENCE, COMPOSITES","Score":null,"Total":0}
引用次数: 0
Abstract
This paper focuses on the identification and modeling of a sandwich composite material derived from a decommissioned wind turbine blade for potential structural reuse. The main research question was whether it is possible, based solely on the recovered material, to achieve an identification accurate enough to model the nonlinear response of the shell structure with satisfactory agreement. To address this, material parameters and constitutive laws were identified and validated separately for both the laminate and the foam. Three-point bending tests of sandwich beams were then performed and then simulated based on the previous assumptions and identifications. The comparison showed that the results of numerical analysis can be highly accurate when compared with experimental data. This confirms the validity of proposed methodology for material identification and material models.
期刊介绍：
The past few decades have seen outstanding advances in the use of composite materials in structural applications. There can be little doubt that, within engineering circles, composites have revolutionised traditional design concepts and made possible an unparalleled range of new and exciting possibilities as viable materials for construction. Composite Structures, an International Journal, disseminates knowledge between users, manufacturers, designers and researchers involved in structures or structural components manufactured using composite materials.
The journal publishes papers which contribute to knowledge in the use of composite materials in engineering structures. Papers deal with design, research and development studies, experimental investigations, theoretical analysis and fabrication techniques relevant to the application of composites in load-bearing components for assemblies, ranging from individual components such as plates and shells to complete composite structures.
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