Yuze Song , Yuhao Guo , Gang Liu , Jinbo Han , Shichao Wang , Weiping He , Shiyang Zhu
{"title":"用于预测各种应力状态下韧性断裂的增强型霍斯福德-库仑断裂模型","authors":"Yuze Song , Yuhao Guo , Gang Liu , Jinbo Han , Shichao Wang , Weiping He , Shiyang Zhu","doi":"10.1016/j.engfracmech.2024.110635","DOIUrl":null,"url":null,"abstract":"<div><div>In this study, an Enhanced Hosford–Coulomb (EHC) fracture model is proposed, which suits a wide range of stress states. The model is validated by quantitatively investigating the ductile fracture behaviors of Ti-6Al-3Nb-2Zr-1Mo titanium alloy through experiments and numerical simulations, and the fracture morphologies are characterized using scanning electron microscopy. The results show that the EHC model has higher accuracy in predicting ductile fracture strain for Ti-6Al-3Nb-2Zr-1Mo alloy compared to the original Hosford–Coulomb (HC) model. Finally, the accuracy and material applicability of the EHC model are further verified with X80 pipeline steel and AA2024-T351 aluminum alloy, demonstrating its advantages.</div></div>","PeriodicalId":11576,"journal":{"name":"Engineering Fracture Mechanics","volume":"312 ","pages":"Article 110635"},"PeriodicalIF":4.7000,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"An enhanced Hosford–Coulomb fracture model for predicting ductile fracture under a wide range of stress states\",\"authors\":\"Yuze Song , Yuhao Guo , Gang Liu , Jinbo Han , Shichao Wang , Weiping He , Shiyang Zhu\",\"doi\":\"10.1016/j.engfracmech.2024.110635\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>In this study, an Enhanced Hosford–Coulomb (EHC) fracture model is proposed, which suits a wide range of stress states. The model is validated by quantitatively investigating the ductile fracture behaviors of Ti-6Al-3Nb-2Zr-1Mo titanium alloy through experiments and numerical simulations, and the fracture morphologies are characterized using scanning electron microscopy. The results show that the EHC model has higher accuracy in predicting ductile fracture strain for Ti-6Al-3Nb-2Zr-1Mo alloy compared to the original Hosford–Coulomb (HC) model. Finally, the accuracy and material applicability of the EHC model are further verified with X80 pipeline steel and AA2024-T351 aluminum alloy, demonstrating its advantages.</div></div>\",\"PeriodicalId\":11576,\"journal\":{\"name\":\"Engineering Fracture Mechanics\",\"volume\":\"312 \",\"pages\":\"Article 110635\"},\"PeriodicalIF\":4.7000,\"publicationDate\":\"2024-11-12\",\"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/S0013794424007987\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"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/S0013794424007987","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MECHANICS","Score":null,"Total":0}
An enhanced Hosford–Coulomb fracture model for predicting ductile fracture under a wide range of stress states
In this study, an Enhanced Hosford–Coulomb (EHC) fracture model is proposed, which suits a wide range of stress states. The model is validated by quantitatively investigating the ductile fracture behaviors of Ti-6Al-3Nb-2Zr-1Mo titanium alloy through experiments and numerical simulations, and the fracture morphologies are characterized using scanning electron microscopy. The results show that the EHC model has higher accuracy in predicting ductile fracture strain for Ti-6Al-3Nb-2Zr-1Mo alloy compared to the original Hosford–Coulomb (HC) model. Finally, the accuracy and material applicability of the EHC model are further verified with X80 pipeline steel and AA2024-T351 aluminum alloy, demonstrating its advantages.
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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