A computational constitutive model for concrete subjected to dynamic loadings

被引：98

作者：

Xu, H. ^{[1
]}

Wen, H. M. ^{[1
,2
]}

机构：

[1] Univ Sci & Technol China, CAS Key Lab Mech Behav & Design Mat, Hefei 230027, Anhui, Peoples R China

[2] SINOPEC Res Inst Safety Engn, State Key Lab Safety & Control Chem, Qingdao 266071, Shandong, Peoples R China

来源：

INTERNATIONAL JOURNAL OF IMPACT ENGINEERING | 2016年 / 91卷

基金：

中国国家自然科学基金;

关键词：

Computational constitutive model; Numerical simulation; Single element simulation; Numerical SHPB test; STRENGTH ENHANCEMENT;

D O I：

10.1016/j.ijimpeng.2016.01.003

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

A computational constitutive model for concrete subjected to dynamic loadings is proposed in this paper. The equation of state is described by P similar to alpha relationship. The strength model is first proposed for concrete under uniaxial unconfined compression/tension by taking account of strain hardening and softening, dynamic enhancement excluding inertial effect, and then extended to total stress space by taking into consideration the pressure dependency and Lode effect. The newly developed constitutive model is compared with the HJC, RHT and K&C models by employing single element simulation approach and numerical SHPB tests. It transpires that the newly-developed constitutive model for concrete is advantageous over the existing models. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：116 / 125

页数：10

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