A study of constitutive relation and dynamic failure for SFRC in compression

被引：35

作者：

Wang, Z. L. ^{[1
,2
]}

Wu, L. P. ^{[3
]}

Wang, J. G. ^{[4
]}

机构：

[1] Tongji Univ, Dept Geotech Engn, Shanghai 200092, Peoples R China

[2] Tongji Univ, Key Lab Geotech & Underground Engn, Minist Educ, Shanghai 200092, Peoples R China

[3] Tsinghua Univ, Dept Civil Engn, Beijing 100084, Peoples R China

[4] Univ Western Australia, Sch Mech Engn, Crawley, WA 6009, Australia

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2010年 / 24卷 / 08期

关键词：

SFRC; Volume fraction; Constitutive relation; Erosion algorithm; Fracture failure; Numerical simulation; FIBER-REINFORCED CONCRETE; NUMERICAL-SIMULATION; TENSILE DAMAGE; BRITTLE ROCK;

D O I：

10.1016/j.conbuildmat.2009.12.038

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper presents a study of constitutive relation and fracture failure of steel-fiber reinforced concrete (SFRC) subjected to compressive loading. Firstly, the characteristics of stress-strain curves for SFRC are analyzed, and appropriate constitutive relations are suggested. Subsequently, an erosion algorithm is presented for the simulation of the fracture failure of the SFRC. With the erosion criterion of maximum principal strain implemented, the failure of the SFRC specimen in split Hopkinson pressure bar (SHPB) tests is finally simulated. Numerical results show that the isotropic hardening plasticity mode and the erosion criterion are suitable for the analysis of the SFRC failure under medium strain-rate loading. In addition, the volume fraction of fibers has significant influence on SFRC fracture failure. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：1358 / 1363

页数：6

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