高强度钢材及其焊缝脆性断裂与疲劳性能的研究进展

简单阐述了高强度钢材的优、缺点以及在国内外建筑工程和桥梁工程中的应用情况,并分析了其实际工程中存在的若干问题。总结了国内外对高强度钢材及其焊缝的脆性断裂与疲劳破坏的相关研究,引出研究高强度建筑用结构钢材及其连接焊缝的断裂韧性和疲劳性能以及影响因素变化规律的必要性,得出了如下结论:低温、焊缝缺陷、钢材厚度的增加和高频动荷载极大降低了高强度钢材的抗脆断能力及疲劳寿命;同时高强度钢材由于特殊冶金工艺而具有的力学性能和韧性加上这些外因限制了其使用范围。...

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Published inJianzhu Gangjiegou Jinzhan Vol. 14; pp. 21 - 28
Main Authors 王元清, 林云, 周晖, 张延年, 石永久
Format Journal Article
LanguageChinese
Published Editorial Department of Progress in Steel Building Structures, Tongji University 01.01.2012
Subjects
低温冷脆
疲劳性能
脆性断裂
高强度钢材
Online AccessGet full text
ISSN1671-9379
DOI10.3969/j.issn.1671-9379.2012.05.003

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Abstract 简单阐述了高强度钢材的优、缺点以及在国内外建筑工程和桥梁工程中的应用情况,并分析了其实际工程中存在的若干问题。总结了国内外对高强度钢材及其焊缝的脆性断裂与疲劳破坏的相关研究,引出研究高强度建筑用结构钢材及其连接焊缝的断裂韧性和疲劳性能以及影响因素变化规律的必要性,得出了如下结论:低温、焊缝缺陷、钢材厚度的增加和高频动荷载极大降低了高强度钢材的抗脆断能力及疲劳寿命;同时高强度钢材由于特殊冶金工艺而具有的力学性能和韧性加上这些外因限制了其使用范围。
AbstractList 简单阐述了高强度钢材的优、缺点以及在国内外建筑工程和桥梁工程中的应用情况,并分析了其实际工程中存在的若干问题。总结了国内外对高强度钢材及其焊缝的脆性断裂与疲劳破坏的相关研究,引出研究高强度建筑用结构钢材及其连接焊缝的断裂韧性和疲劳性能以及影响因素变化规律的必要性,得出了如下结论:低温、焊缝缺陷、钢材厚度的增加和高频动荷载极大降低了高强度钢材的抗脆断能力及疲劳寿命;同时高强度钢材由于特殊冶金工艺而具有的力学性能和韧性加上这些外因限制了其使用范围。
Author 王元清
周晖
林云
张延年
石永久
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Snippet 简单阐述了高强度钢材的优、缺点以及在国内外建筑工程和桥梁工程中的应用情况,并分析了其实际工程中存在的若干问题。总结了国内外对高强度钢材及其焊缝的脆性断裂与疲劳破坏...
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SubjectTerms 低温冷脆
疲劳性能
脆性断裂
高强度钢材
Title 高强度钢材及其焊缝脆性断裂与疲劳性能的研究进展
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