热暴露条件下具有一系列周期性排列的半圆切口的表面硬化圆柱体残余蠕变应力松弛的计算方法

IF 0.6 4区 工程技术 Q4 MECHANICS
V. P. Radchenko, V. E. Glebov
{"title":"热暴露条件下具有一系列周期性排列的半圆切口的表面硬化圆柱体残余蠕变应力松弛的计算方法","authors":"V. P. Radchenko,&nbsp;V. E. Glebov","doi":"10.1134/S0025654424606293","DOIUrl":null,"url":null,"abstract":"<p>A numerical method for calculating the relaxation of residual stresses in a solid cylinder with a series of periodically located semicircular notches after advanced surface plastic hardening under creep conditions during thermal exposure has been developed and implemented based on the finite element method. The capabilities of the method and the results of its application are illustrated on surface-hardened cylinders made of EI698 alloy with a radius of 3.76 mm and a single notch of radius 0.1; 0.3; 0.5} mm and a series of 3, 5, and 7 periodically repeating notches of the same type with a radius of 0.1 and 0.3 mm. Relaxation of residual stresses for all calculation variants using the law of steady-state creep at <i>T</i> = 700°C on a time base of 1000 h is investigated. A comparative analysis of calculation data for a smooth cylindrical sample and cylinders with notches is performed. It is shown that when a single notch of 0.1 mm radius is applied after hardening of the cylinder, residual circumferential and axial compressive stresses along the depth from the bottom of the notch are comparable, and sometimes even higher, than for a smooth sample, and when notches are applied, the radius of which is greater than the thickness of the hardened layer, the values of these components are significantly lower. For a series of notches, the circumferential and axial residual compressive stresses are significantly reduced, decreasing nonlinearly from the extreme notches of the system to the central one. During creep during thermal exposure, relaxation of residual stresses occurs, but their value, although decreasing (in absolute value), retains a negative sign over time. This result is a positive factor in assessing the performance of surface-hardened cylinders with defects such as semicircular notches under high-temperature creep conditions. The calculation results are illustrated by numerous graphs and tabular data regarding the kinetics of residual stresses.</p>","PeriodicalId":697,"journal":{"name":"Mechanics of Solids","volume":"59 7","pages":"3735 - 3746"},"PeriodicalIF":0.6000,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A Method for Calculating the Relaxation of Residual Creep Stresses in a Surface-Hardened Cylinder with a Series of Periodically Arranged Semicircular Incisions under Thermal Exposure Conditions\",\"authors\":\"V. P. Radchenko,&nbsp;V. E. Glebov\",\"doi\":\"10.1134/S0025654424606293\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>A numerical method for calculating the relaxation of residual stresses in a solid cylinder with a series of periodically located semicircular notches after advanced surface plastic hardening under creep conditions during thermal exposure has been developed and implemented based on the finite element method. The capabilities of the method and the results of its application are illustrated on surface-hardened cylinders made of EI698 alloy with a radius of 3.76 mm and a single notch of radius 0.1; 0.3; 0.5} mm and a series of 3, 5, and 7 periodically repeating notches of the same type with a radius of 0.1 and 0.3 mm. Relaxation of residual stresses for all calculation variants using the law of steady-state creep at <i>T</i> = 700°C on a time base of 1000 h is investigated. A comparative analysis of calculation data for a smooth cylindrical sample and cylinders with notches is performed. It is shown that when a single notch of 0.1 mm radius is applied after hardening of the cylinder, residual circumferential and axial compressive stresses along the depth from the bottom of the notch are comparable, and sometimes even higher, than for a smooth sample, and when notches are applied, the radius of which is greater than the thickness of the hardened layer, the values of these components are significantly lower. For a series of notches, the circumferential and axial residual compressive stresses are significantly reduced, decreasing nonlinearly from the extreme notches of the system to the central one. During creep during thermal exposure, relaxation of residual stresses occurs, but their value, although decreasing (in absolute value), retains a negative sign over time. This result is a positive factor in assessing the performance of surface-hardened cylinders with defects such as semicircular notches under high-temperature creep conditions. The calculation results are illustrated by numerous graphs and tabular data regarding the kinetics of residual stresses.</p>\",\"PeriodicalId\":697,\"journal\":{\"name\":\"Mechanics of Solids\",\"volume\":\"59 7\",\"pages\":\"3735 - 3746\"},\"PeriodicalIF\":0.6000,\"publicationDate\":\"2025-03-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Mechanics of Solids\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S0025654424606293\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"MECHANICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Mechanics of Solids","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1134/S0025654424606293","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MECHANICS","Score":null,"Total":0}
引用次数: 0

摘要

本文提出了一种基于有限元法计算蠕变条件下具有一系列周期性定位半圆缺口的固体圆柱体表面塑性硬化后残余应力松弛的数值方法。在半径为3.76 mm、单缺口半径为0.1的EI698合金表面硬化圆柱体上说明了该方法的能力和应用结果;0.3;0.5 mm和一系列3、5和7个周期重复的相同类型的切口,半径为0.1和0.3 mm。使用稳态蠕变定律在T = 700℃下,在1000 h的时间基础上,对所有计算变量的残余应力松弛进行了研究。对光滑圆柱试样和带缺口圆柱试样的计算数据进行了对比分析。结果表明,当圆柱体硬化后施加半径为0.1 mm的单个缺口时,从缺口底部开始沿深度的残余周向和轴向压应力与光滑样品相当,有时甚至更高;当施加缺口的半径大于硬化层的厚度时,这些分量的值显着降低。对于一系列缺口,周向和轴向残余压应力显著减小,从系统的极端缺口到中心缺口呈非线性减小。在热暴露的蠕变过程中,残余应力发生松弛,但其值虽然减少(绝对值),但随着时间的推移保持负号。这一结果对于评估带有半圆形缺口等缺陷的表面硬化圆柱体在高温蠕变条件下的性能是一个积极的因素。计算结果由许多关于残余应力动力学的图表和表格数据说明。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

A Method for Calculating the Relaxation of Residual Creep Stresses in a Surface-Hardened Cylinder with a Series of Periodically Arranged Semicircular Incisions under Thermal Exposure Conditions

A Method for Calculating the Relaxation of Residual Creep Stresses in a Surface-Hardened Cylinder with a Series of Periodically Arranged Semicircular Incisions under Thermal Exposure Conditions

A numerical method for calculating the relaxation of residual stresses in a solid cylinder with a series of periodically located semicircular notches after advanced surface plastic hardening under creep conditions during thermal exposure has been developed and implemented based on the finite element method. The capabilities of the method and the results of its application are illustrated on surface-hardened cylinders made of EI698 alloy with a radius of 3.76 mm and a single notch of radius 0.1; 0.3; 0.5} mm and a series of 3, 5, and 7 periodically repeating notches of the same type with a radius of 0.1 and 0.3 mm. Relaxation of residual stresses for all calculation variants using the law of steady-state creep at T = 700°C on a time base of 1000 h is investigated. A comparative analysis of calculation data for a smooth cylindrical sample and cylinders with notches is performed. It is shown that when a single notch of 0.1 mm radius is applied after hardening of the cylinder, residual circumferential and axial compressive stresses along the depth from the bottom of the notch are comparable, and sometimes even higher, than for a smooth sample, and when notches are applied, the radius of which is greater than the thickness of the hardened layer, the values of these components are significantly lower. For a series of notches, the circumferential and axial residual compressive stresses are significantly reduced, decreasing nonlinearly from the extreme notches of the system to the central one. During creep during thermal exposure, relaxation of residual stresses occurs, but their value, although decreasing (in absolute value), retains a negative sign over time. This result is a positive factor in assessing the performance of surface-hardened cylinders with defects such as semicircular notches under high-temperature creep conditions. The calculation results are illustrated by numerous graphs and tabular data regarding the kinetics of residual stresses.

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
Mechanics of Solids
Mechanics of Solids 医学-力学
CiteScore
1.20
自引率
42.90%
发文量
112
审稿时长
6-12 weeks
期刊介绍: Mechanics of Solids publishes articles in the general areas of dynamics of particles and rigid bodies and the mechanics of deformable solids. The journal has a goal of being a comprehensive record of up-to-the-minute research results. The journal coverage is vibration of discrete and continuous systems; stability and optimization of mechanical systems; automatic control theory; dynamics of multiple body systems; elasticity, viscoelasticity and plasticity; mechanics of composite materials; theory of structures and structural stability; wave propagation and impact of solids; fracture mechanics; micromechanics of solids; mechanics of granular and geological materials; structure-fluid interaction; mechanical behavior of materials; gyroscopes and navigation systems; and nanomechanics. Most of the articles in the journal are theoretical and analytical. They present a blend of basic mechanics theory with analysis of contemporary technological problems.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信