Stress-strain model of austenitic stainless steel after exposure to elevated temperatures

被引：63
|
作者：
Wang, Xing-Qiang [1 ,2 ]
Tao, Zhong [1 ]
Song, Tian-Yi [1 ]
Han, Lin-Hai [3 ]
机构：
[1] Univ Western Sydney, Inst Infrastruct Engn, Penrith, NSW 2751, Australia
[2] Shandong Polytech, Dept Civil Engn, Jinan 250013, Peoples R China
[3] Tsinghua Univ, Dept Civil Engn, Beijing 100084, Peoples R China
来源：
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH | 2014年 / 99卷
基金：
澳大利亚研究理事会;
关键词：
Stress-strain relations; Stainless steel; Post-fire; Damage evaluation; Temperature effects; STRENGTH ENHANCEMENTS; DESIGN; SECTIONS; CURVES; BEHAVIOR;
D O I：
10.1016/j.jcsr.2014.04.020
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
With the increasing use of stainless steel in structures, there is a research need to evaluate the post-fire behaviour of this structural material. An experimental research was conducted to investigate the mechanical properties of austenitic stainless steel of grade 1.4301 after heating and cooling down to room temperature. Three types of stainless steel coupons were tested, including flat and corner coupons cut from a square hollow section and curved coupons extracted from a circular hollow section. The post-fire stress-strain curves of stainless steel exposed to various temperatures (200-1000 degrees C) and heat soak times (0-135 mm) were measured. The influence of different parameters on the elastic modulus, yield strength, ultimate strength and ultimate strain is discussed in this paper. Based on the test results, a stress-strain model is proposed for austenitic stainless steel after exposure to fire. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：129 / 139
页数：11
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