High and low cycle fatigue performance comparison between micro-alloyed and TMT rebar

被引：41

作者：

Paul, Surajit Kumar ^{[1
]}

Rana, Pritam Kumar ^{[2
]}

Das, Debdulal ^{[2
]}

Chandra, Sanjay ^{[1
]}

Kundu, Saurabh ^{[1
]}

机构：

[1] R&D Tata Steel Ltd, Jamshedpur 831007, Bihar, India

[2] Bengal Engn & Sci Univ, Dept Met & Mat Engn, Sibpur 711103, India

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2014年 / 54卷

关键词：

TMT rebar; Micro-alloyed rebar; High cycle fatigue; Low cycle fatigue; Seismic resistance; Stress concentration; Stress triaxiality; Transverse rib; REINFORCING STEEL BARS; PLASTIC-DEFORMATION RESPONSE; FAILURE BEHAVIORS; MAGNESIUM ALLOY; BS; 460B; SIMULATION; S500S; MODEL; LIFE;

D O I：

10.1016/j.conbuildmat.2013.12.061

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

High and low cycle fatigue performance of micro-alloyed and TMT rebars are compared through experimental investigation. Micro-alloyed rebar shows better fatigue performance than TMT rebar. It is experimentally observed in both micro-alloyed and TMT rebars that for high and low cycle fatigue, crack initiates form the transverse rib root and propagate along the same region. From finite element simulation, it is noticed that the stress concentration takes place at the root of the transverse rib and stress triaxiality becomes higher in the same region. At the transverse rib root, tensile strain accumulation is noticed in simulation. The experimental observation is explained with the help of simulation result that fatigue crack initiate and propagate along the transverse rib root. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：170 / 179

页数：10

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