损伤参数在低循环疲劳评估中的作用

IF 4 2区工程技术 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

International Journal of Damage Mechanics Pub Date : 2024-09-14 DOI:10.1177/10567895241277951

Mykola Bobyr, Vadim Silberchmidt, Viktor Koval

{"title":"损伤参数在低循环疲劳评估中的作用","authors":"Mykola Bobyr, Vadim Silberchmidt, Viktor Koval","doi":"10.1177/10567895241277951","DOIUrl":null,"url":null,"abstract":"A low-cycle fatigue (LCF) analysis is one of the main design stages for highly loaded structural elements used in various applications. For this analysis, it is necessary to determine the values of local stresses and deformations, taking into account both elastic and plastic regions in the zones of stress concentration. This study presents and assesses the engineering methods used for prediction of low-cycle fatigue in structural elements. For zones of stress (strain) concentration, the Neuber-Makhutov method for LCF, taking into account the type of material stress-strain diagrams, is employed. The concept of distributed damage, based on the main ideas of the continuum damage mechanics of Kachanov-Rabotnov, was used. An approach employing the damage parameter for assessment of damage accumulation in LCF in highly loaded areas of structural elements is presented.","PeriodicalId":13837,"journal":{"name":"International Journal of Damage Mechanics","volume":"62 1","pages":""},"PeriodicalIF":4.0000,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effort of damage parameter in assessment of low cycle fatigue\",\"authors\":\"Mykola Bobyr, Vadim Silberchmidt, Viktor Koval\",\"doi\":\"10.1177/10567895241277951\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A low-cycle fatigue (LCF) analysis is one of the main design stages for highly loaded structural elements used in various applications. For this analysis, it is necessary to determine the values of local stresses and deformations, taking into account both elastic and plastic regions in the zones of stress concentration. This study presents and assesses the engineering methods used for prediction of low-cycle fatigue in structural elements. For zones of stress (strain) concentration, the Neuber-Makhutov method for LCF, taking into account the type of material stress-strain diagrams, is employed. The concept of distributed damage, based on the main ideas of the continuum damage mechanics of Kachanov-Rabotnov, was used. An approach employing the damage parameter for assessment of damage accumulation in LCF in highly loaded areas of structural elements is presented.\",\"PeriodicalId\":13837,\"journal\":{\"name\":\"International Journal of Damage Mechanics\",\"volume\":\"62 1\",\"pages\":\"\"},\"PeriodicalIF\":4.0000,\"publicationDate\":\"2024-09-14\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal of Damage Mechanics\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.1177/10567895241277951\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Damage Mechanics","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1177/10567895241277951","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

摘要

低循环疲劳（LCF）分析是各种应用中高负载结构元件的主要设计阶段之一。为了进行这种分析，有必要确定局部应力和变形值，同时考虑应力集中区域的弹性和塑性区域。本研究介绍并评估了用于预测结构元件低周期疲劳的工程方法。对于应力（应变）集中区，采用了考虑到材料应力应变图类型的 Neuber-Makhutov 低循环疲劳法。根据 Kachanov-Rabotnov 连续损伤力学的主要思想，采用了分布式损伤概念。介绍了一种采用损伤参数的方法，用于评估结构元件高载荷区域 LCF 中的损伤累积。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Effort of damage parameter in assessment of low cycle fatigue

A low-cycle fatigue (LCF) analysis is one of the main design stages for highly loaded structural elements used in various applications. For this analysis, it is necessary to determine the values of local stresses and deformations, taking into account both elastic and plastic regions in the zones of stress concentration. This study presents and assesses the engineering methods used for prediction of low-cycle fatigue in structural elements. For zones of stress (strain) concentration, the Neuber-Makhutov method for LCF, taking into account the type of material stress-strain diagrams, is employed. The concept of distributed damage, based on the main ideas of the continuum damage mechanics of Kachanov-Rabotnov, was used. An approach employing the damage parameter for assessment of damage accumulation in LCF in highly loaded areas of structural elements is presented.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

International Journal of Damage Mechanics 工程技术-材料科学：综合

CiteScore

8.70

自引率

26.20%

发文量

审稿时长

5.4 months

期刊介绍： Featuring original, peer-reviewed papers by leading specialists from around the world, the International Journal of Damage Mechanics covers new developments in the science and engineering of fracture and damage mechanics. Devoted to the prompt publication of original papers reporting the results of experimental or theoretical work on any aspect of research in the mechanics of fracture and damage assessment, the journal provides an effective mechanism to disseminate information not only within the research community but also between the reseach laboratory and industrial design department. The journal also promotes and contributes to development of the concept of damage mechanics. This journal is a member of the Committee on Publication Ethics (COPE).