P265GH钢材料CT拉伸试样损伤机理的数值研究

IF 1.3 Q3 ENGINEERING, MECHANICAL

PERIODICA POLYTECHNICA-MECHANICAL ENGINEERING Pub Date : 2023-03-20 DOI:10.3311/ppme.20234

M. Lahlou, A. En-naji, N. Mouhib, B. Saadouki, F. Majid

{"title":"P265GH钢材料CT拉伸试样损伤机理的数值研究","authors":"M. Lahlou, A. En-naji, N. Mouhib, B. Saadouki, F. Majid","doi":"10.3311/ppme.20234","DOIUrl":null,"url":null,"abstract":"The aim of this paper is to determine the damage mechanisms of P265GH steel, commonly used for pressure equipment. First, an experimental study using tensile and Charpy tests allowed us to determine the mechanical properties (Young modulus E = 200 GPa, elongation ε = 35%, yield se = 320 MPa, ultimate stress su = 470 MPa, and KIC = 96 MP√m). Then, numerical finite element modeling on a CT specimen using the CASTEM calculation code allowed us to determine the damage of the material when the notch depth varies. The analysis of the results shows that the numerical values of the stress concentration coefficient Kt and the stress intensity factor KI are comparable with the analytically calculated values, thus validating our numerical study. The numerical results obtained revealed that the maximum stress σmax is located in the vicinity of the notch bottom and the high probability density corresponds to a high loading level.","PeriodicalId":43630,"journal":{"name":"PERIODICA POLYTECHNICA-MECHANICAL ENGINEERING","volume":"14 1","pages":""},"PeriodicalIF":1.3000,"publicationDate":"2023-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A Numerical Study of the Damage Mechanisms for CT Tensile Specimens of P265GH Steel Material\",\"authors\":\"M. Lahlou, A. En-naji, N. Mouhib, B. Saadouki, F. Majid\",\"doi\":\"10.3311/ppme.20234\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The aim of this paper is to determine the damage mechanisms of P265GH steel, commonly used for pressure equipment. First, an experimental study using tensile and Charpy tests allowed us to determine the mechanical properties (Young modulus E = 200 GPa, elongation ε = 35%, yield se = 320 MPa, ultimate stress su = 470 MPa, and KIC = 96 MP√m). Then, numerical finite element modeling on a CT specimen using the CASTEM calculation code allowed us to determine the damage of the material when the notch depth varies. The analysis of the results shows that the numerical values of the stress concentration coefficient Kt and the stress intensity factor KI are comparable with the analytically calculated values, thus validating our numerical study. The numerical results obtained revealed that the maximum stress σmax is located in the vicinity of the notch bottom and the high probability density corresponds to a high loading level.\",\"PeriodicalId\":43630,\"journal\":{\"name\":\"PERIODICA POLYTECHNICA-MECHANICAL ENGINEERING\",\"volume\":\"14 1\",\"pages\":\"\"},\"PeriodicalIF\":1.3000,\"publicationDate\":\"2023-03-20\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"PERIODICA POLYTECHNICA-MECHANICAL ENGINEERING\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.3311/ppme.20234\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENGINEERING, MECHANICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"PERIODICA POLYTECHNICA-MECHANICAL ENGINEERING","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3311/ppme.20234","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}

引用次数: 0

摘要

本文的目的是确定压力设备常用的P265GH钢的损伤机理。首先，使用拉伸和Charpy测试的实验研究使我们能够确定机械性能(杨氏模量E = 200 GPa，伸长率ε = 35%，屈服se = 320 MPa，极限应力su = 470 MPa, KIC = 96 MP√m)。然后，使用CASTEM计算代码对CT试样进行数值有限元建模，使我们能够确定缺口深度变化时材料的损伤情况。分析结果表明，应力集中系数Kt和应力强度因子KI的数值与解析计算值相当，从而验证了我们的数值研究。数值结果表明，最大应力σmax位于缺口底部附近，高概率密度对应高加载水平。

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

A Numerical Study of the Damage Mechanisms for CT Tensile Specimens of P265GH Steel Material

The aim of this paper is to determine the damage mechanisms of P265GH steel, commonly used for pressure equipment. First, an experimental study using tensile and Charpy tests allowed us to determine the mechanical properties (Young modulus E = 200 GPa, elongation ε = 35%, yield se = 320 MPa, ultimate stress su = 470 MPa, and KIC = 96 MP√m). Then, numerical finite element modeling on a CT specimen using the CASTEM calculation code allowed us to determine the damage of the material when the notch depth varies. The analysis of the results shows that the numerical values of the stress concentration coefficient Kt and the stress intensity factor KI are comparable with the analytically calculated values, thus validating our numerical study. The numerical results obtained revealed that the maximum stress σmax is located in the vicinity of the notch bottom and the high probability density corresponds to a high loading level.

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

PERIODICA POLYTECHNICA-MECHANICAL ENGINEERING ENGINEERING, MECHANICAL-

CiteScore

2.80

自引率

7.70%

发文量

审稿时长

20 weeks

期刊介绍： Periodica Polytechnica is a publisher of the Budapest University of Technology and Economics. It publishes seven international journals (Architecture, Chemical Engineering, Civil Engineering, Electrical Engineering, Mechanical Engineering, Social and Management Sciences, Transportation Engineering). The journals have free electronic versions.