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Modeling of Short- and Long-Term Chemomechanical Coupling Behavior of Cement-Based Materials

文献类型：期刊论文

作者Hu, Dawei1,2; Zhou, Hui1; Zhang, Fan3; Shao, Jianfu2
刊名JOURNAL OF ENGINEERING MECHANICS
出版日期2014
卷号140期号:1页码:206-218
关键词Chemomechanical coupling Long term Chemical damage Cement-based material Fiber-reinforced concrete
ISSN号0733-9399
DOI10.1061/(ASCE)EM.1943-7889.0000639
英文摘要The present paper proposes a general framework for the description of short- and long-term behavior of cement-based materials subjected to mechanical loading and chemical degradation. The framework can take into account two different damage mechanisms, mechanical damage and chemical damage, and their interaction also can be considered. A special model is presented for the modeling of leaching-mechanical coupling behavior of fiber-reinforced concrete. The elastic modulus, Drucker-Prager-type criterion, and empirical evolution law of creep strain are related to mechanical damage and chemical damage variables. The evolution kinetic of mechanical damage caused by compression and tensile stress are defined, respectively. The chemical damage is defined with respect to the actual concentration of calcium in the solid skeleton, which is calculated from the mass balance equation of calcium ions. The diffusion coefficient is written as a positive function of mechanical damage variable. The proposed model is implemented into COMSOL Multiphysics and validated from decoupling experiments to fully coupling experiments to progressively determine the model parameters. The proposed model offers an adaptable framework to facilitate description of the chemomechanical coupling behavior of cement-based materials.
WOS研究方向Engineering
语种英语
WOS记录号WOS:000328556600019
出版者ASCE-AMER SOC CIVIL ENGINEERS
源URL[http://119.78.100.198/handle/2S6PX9GI/3539]  
专题岩土力学所知识全产出_期刊论文
国家重点实验室知识产出_期刊论文
作者单位1.Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn ;
2.Univ Lille 1;
3.Hubei Univ Technol, Sch Civil Engn & Architecture
推荐引用方式
GB/T 7714		 Hu, Dawei,Zhou, Hui,Zhang, Fan,et al. Modeling of Short- and Long-Term Chemomechanical Coupling Behavior of Cement-Based Materials[J]. JOURNAL OF ENGINEERING MECHANICS,2014,140(1):206-218.
APA Hu, Dawei,Zhou, Hui,Zhang, Fan,&Shao, Jianfu.(2014).Modeling of Short- and Long-Term Chemomechanical Coupling Behavior of Cement-Based Materials.JOURNAL OF ENGINEERING MECHANICS,140(1),206-218.
MLA Hu, Dawei,et al."Modeling of Short- and Long-Term Chemomechanical Coupling Behavior of Cement-Based Materials".JOURNAL OF ENGINEERING MECHANICS 140.1(2014):206-218.

入库方式： OAI收割

来源：武汉岩土力学研究所

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