{"title":"聚合物复合材料的循环疲劳裂纹扩展：通过Hartman-Schijve方法解释数据","authors":"Silvain Michel , Anthony J. Kinloch , Rhys Jones","doi":"10.1016/j.engfracmech.2024.110743","DOIUrl":null,"url":null,"abstract":"<div><div>The European Structural Integrity Society (ESIS), Technical Committee 4 (TC4), has initiated a Round-Robin program on the Mode I delamination growth in a continuous carbon-fibre reinforced-plastic (CFRP) composite under fatigue loading, using Mode I double-cantilever (DCB) tests. The present paper shows that the Hartman-Schijve equation, determined with test data generated under <em>R</em> = 0.1, can be used to compute the fatigue crack growth (FCG) associated with tests performed at <em>R</em> = 0.3, 0.5 and 0.7, where <em>R</em> is the load ratio (=<em>P</em><sub>min</sub>/<em>P</em><sub>max</sub>). Most importantly, the Hartman-Schijve methodology may be used to determine a worst-case upper-bound <em>da/dN</em> versus <span><math><mrow><mi>Δ</mi><msqrt><mrow><mi>G</mi></mrow></msqrt></mrow></math></span> FCG curve for small naturally-occurring delaminations in the CFRP.</div></div>","PeriodicalId":11576,"journal":{"name":"Engineering Fracture Mechanics","volume":"314 ","pages":"Article 110743"},"PeriodicalIF":5.3000,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Cyclic-fatigue crack growth in polymer composites: Data interpretation via the Hartman-Schijve methodology\",\"authors\":\"Silvain Michel , Anthony J. Kinloch , Rhys Jones\",\"doi\":\"10.1016/j.engfracmech.2024.110743\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>The European Structural Integrity Society (ESIS), Technical Committee 4 (TC4), has initiated a Round-Robin program on the Mode I delamination growth in a continuous carbon-fibre reinforced-plastic (CFRP) composite under fatigue loading, using Mode I double-cantilever (DCB) tests. The present paper shows that the Hartman-Schijve equation, determined with test data generated under <em>R</em> = 0.1, can be used to compute the fatigue crack growth (FCG) associated with tests performed at <em>R</em> = 0.3, 0.5 and 0.7, where <em>R</em> is the load ratio (=<em>P</em><sub>min</sub>/<em>P</em><sub>max</sub>). Most importantly, the Hartman-Schijve methodology may be used to determine a worst-case upper-bound <em>da/dN</em> versus <span><math><mrow><mi>Δ</mi><msqrt><mrow><mi>G</mi></mrow></msqrt></mrow></math></span> FCG curve for small naturally-occurring delaminations in the CFRP.</div></div>\",\"PeriodicalId\":11576,\"journal\":{\"name\":\"Engineering Fracture Mechanics\",\"volume\":\"314 \",\"pages\":\"Article 110743\"},\"PeriodicalIF\":5.3000,\"publicationDate\":\"2025-02-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Engineering Fracture Mechanics\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0013794424009068\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2024/12/15 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"Q1\",\"JCRName\":\"MECHANICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Engineering Fracture Mechanics","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0013794424009068","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2024/12/15 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"MECHANICS","Score":null,"Total":0}
Cyclic-fatigue crack growth in polymer composites: Data interpretation via the Hartman-Schijve methodology
The European Structural Integrity Society (ESIS), Technical Committee 4 (TC4), has initiated a Round-Robin program on the Mode I delamination growth in a continuous carbon-fibre reinforced-plastic (CFRP) composite under fatigue loading, using Mode I double-cantilever (DCB) tests. The present paper shows that the Hartman-Schijve equation, determined with test data generated under R = 0.1, can be used to compute the fatigue crack growth (FCG) associated with tests performed at R = 0.3, 0.5 and 0.7, where R is the load ratio (=Pmin/Pmax). Most importantly, the Hartman-Schijve methodology may be used to determine a worst-case upper-bound da/dN versus FCG curve for small naturally-occurring delaminations in the CFRP.
期刊介绍：
EFM covers a broad range of topics in fracture mechanics to be of interest and use to both researchers and practitioners. Contributions are welcome which address the fracture behavior of conventional engineering material systems as well as newly emerging material systems. Contributions on developments in the areas of mechanics and materials science strongly related to fracture mechanics are also welcome. Papers on fatigue are welcome if they treat the fatigue process using the methods of fracture mechanics.
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