A general maximum energy release rate criterion for mixed mode I/II fatigue crack growth under large-scale yielding

IF 5 2区工程技术 Q1 ENGINEERING, MECHANICAL

Theoretical and Applied Fracture Mechanics Pub Date : 2025-02-21 DOI:10.1016/j.tafmec.2025.104899

Evan Wei Wen Cheok, Cheng Chen, Xudong Qian, Ser Tong Quek, Michael Boon Ing Si

{"title":"A general maximum energy release rate criterion for mixed mode I/II fatigue crack growth under large-scale yielding","authors":"Evan Wei Wen Cheok, Cheng Chen, Xudong Qian, Ser Tong Quek, Michael Boon Ing Si","doi":"10.1016/j.tafmec.2025.104899","DOIUrl":null,"url":null,"abstract":"<div><div>Mixed mode fatigue failure presents safety risks to civil infrastructure like bridges and floating structures. Under linear elastic conditions, research and applications for mixed mode I/II crack path predictions are well established. However, under extreme events, traditional criteria (such as the maximum tangential stress, minimum strain energy density and maximum energy release rate criteria) fail to consider the effects of fatigue load magnitude and consequently, do not perform well. This study proposes an extension of the traditional maximum energy release rate to address conditions involving gross plasticity within various steel specimens, referred to as the general maximum energy release rate criterion. This general criterion postulates that the crack extends in the direction which maximizes the sum of the (1) plastic dissipation energy due to plastic deformation and (2) crack surface creation energy. By virtue of its general nature, the proposed criterion performs well under linear elastic conditions. To validate the criterion’s effectiveness within the large-scale yielding regime, an experimental programme features a modified single-edge notched tension specimen design which contains a hole neighbouring the crack tip. Three specimens undergo separate constant amplitude loading regimes with varying maximum loads. The resulting crack paths exhibit distinctly different trajectories, validating the proposed criterion and ascertaining the effects of load magnitude under cyclic loading.</div></div>","PeriodicalId":22879,"journal":{"name":"Theoretical and Applied Fracture Mechanics","volume":"138 ","pages":"Article 104899"},"PeriodicalIF":5.0000,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Theoretical and Applied Fracture Mechanics","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0167844225000576","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}

引用次数: 0

Abstract

Mixed mode fatigue failure presents safety risks to civil infrastructure like bridges and floating structures. Under linear elastic conditions, research and applications for mixed mode I/II crack path predictions are well established. However, under extreme events, traditional criteria (such as the maximum tangential stress, minimum strain energy density and maximum energy release rate criteria) fail to consider the effects of fatigue load magnitude and consequently, do not perform well. This study proposes an extension of the traditional maximum energy release rate to address conditions involving gross plasticity within various steel specimens, referred to as the general maximum energy release rate criterion. This general criterion postulates that the crack extends in the direction which maximizes the sum of the (1) plastic dissipation energy due to plastic deformation and (2) crack surface creation energy. By virtue of its general nature, the proposed criterion performs well under linear elastic conditions. To validate the criterion’s effectiveness within the large-scale yielding regime, an experimental programme features a modified single-edge notched tension specimen design which contains a hole neighbouring the crack tip. Three specimens undergo separate constant amplitude loading regimes with varying maximum loads. The resulting crack paths exhibit distinctly different trajectories, validating the proposed criterion and ascertaining the effects of load magnitude under cyclic loading.

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Theoretical and Applied Fracture Mechanics 工程技术-工程：机械

CiteScore

8.40

自引率

18.90%

发文量

435

审稿时长

37 days

期刊介绍： Theoretical and Applied Fracture Mechanics'' aims & scopes have been re-designed to cover both the theoretical, applied, and numerical aspects associated with those cracking related phenomena taking place, at a micro-, meso-, and macroscopic level, in materials/components/structures of any kind. The journal aims to cover the cracking/mechanical behaviour of materials/components/structures in those situations involving both time-independent and time-dependent system of external forces/moments (such as, for instance, quasi-static, impulsive, impact, blasting, creep, contact, and fatigue loading). Since, under the above circumstances, the mechanical behaviour of cracked materials/components/structures is also affected by the environmental conditions, the journal would consider also those theoretical/experimental research works investigating the effect of external variables such as, for instance, the effect of corrosive environments as well as of high/low-temperature.