Modeling of temperature dependent yield strength for stainless steel considering nonlinear behavior and the effect of phase transition

被引：22

作者：

Li, Ying ^{[1
]}

Li, Weiguo ^{[1
]}

Zhang, Xianhe ^{[1
]}

Ma, Jianzuo ^{[1
]}

Shao, Jiaxing ^{[1
]}

Kou, Haibo ^{[1
]}

Deng, Yong ^{[1
]}

机构：

[1] Chongqing Univ, Coll Aerosp Engn, State Key Lab Coal Mine Disaster Dynam & Control, Chongqing 400044, Peoples R China

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2018年 / 159卷

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

Stainless steel; Yield strength; Temperature dependent; theoretical model; Nonlinear behavior; Effect of phase transition; ELEVATED-TEMPERATURES; FIRE;

D O I：

10.1016/j.conbuildmat.2017.10.106

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In this paper, a physics-based temperature dependent yield strength model for stainless steel is developed based on a kind of equivalence between the deformation energy and the heat energy. A critical yield energy which comprises the deformation energy and the corresponding heat energy is then introduced. Meanwhile, the nonlinear behavior of stainless steel before the yielding of materials and the effect of phase transition are considered in the theoretical model without any fitting parameters. These stainless steels studied in this paper are from European brands, Japanese brands and interior brands. Excellent agreement between the theoretical model predictions and the experimental results of anstenitic stainless steel and ferritic stainless steel fully validates the reasonability of this model. The theoretical model is convenient and practical to predict the temperature dependent yield strength of stainless steel, which is expected to be applied for the appropriate assessment of fire resistance of stainless steel. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：147 / 154

页数：8

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