Influence of high stress triaxiality on mechanical strength of ASTM A36, ASTM A572 and ASTM A992 steels

被引：36

作者：

Sajid, Hizb Ullah ^{[1
]}

Kiran, Ravi ^{[1
]}

机构：

[1] North Dakota State Univ, Dept Civil & Env Engn, Fargo, ND 58105 USA

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2018年 / 176卷

关键词：

ASTM A36 steel; ASTM A572 steel; ASTM A992 steel; Stress triaxiality; Yield strength; Ultimate tensile strength;

D O I：

10.1016/j.conbuildmat.2018.05.018

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This study aims at investigating the influence of high stress triaxiality on the yield strength and ultimate tensile strength of commonly used structural steels (ASTM A36, ASTM A572 and ASTM A992). To this end, axisymmetrically notched steel specimens are designed to generate a range of stress triaxialities. Yield strength and ultimate tensile strength of notched steel specimens are then determined using engineering stress-strain curves obtained from uniaxial tensile testing of notched specimens. Yield strength and ultimate tensile strength of all three types of structural steels are found to increase linearly with increase in stress triaxiality of test specimens. Based on experimental and complimentary finite element results, predictive equations are proposed to estimate increased yield strength and ultimate tensile strength as a function of stress triaxiality in structural steels. (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：129 / 134

页数：6

共 19 条

[1] NOTCH EFFECTS, STRESS STATE, AND DUCTILITY [J].

AGOGINO, AM .

JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY-TRANSACTIONS OF THE ASME, 1978, 100 (04) :348-355

[2]

*AM I STEEL CONSTR, 2005, MAN STEEL CONSTR

[3]

[Anonymous], 2005, 36005 AISC

[4]

[Anonymous], 2014, A36A36M ASTM INT

[5]

[Anonymous], 2005, FRACTURE MECH FUNDAM

[6]

ASTM, 2015, STAND SPEC HIGH STRE

[7]

ASTM International, 2015, STAND SPEC STRUCT ST

[8]

ASTM International, 2017, A6A6M17A ASTM

[9] Effect of temperature and cooling regime on mechanical properties of high-strength low-alloy steel [J].

Aziz, Esam M. ;

Kodur, Venkatesh K. .

FIRE AND MATERIALS, 2016, 40 (07) :926-939

[10] Development and use of high performance steel [J].

Bjorhovde, R .

JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH, 2004, 60 (3-5) :393-400

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