Water Science and Engineering 2010, 3(1) 102-112 DOI:   10.3882/j.issn.1674-2370.2010.01.011  ISSN: 1674-2370 CN: 32-1785/TV

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cup model
cement-based materials
plastic shearing mechanism
plastic pore collapse mechanism
numerical simulation
Article by Yan,.
Article by Jian-fu,.S

Elastoplastic cup model for cement-based materials

Yan ZHANG,Jian-fu SHAO

1. College of Mechanics and Materials, Hohai University, Nanjing 210098, P. R. China
2. Laboratory of Mechanics of Lille, UMR 8107 CNRS, Villeneuve d’Ascq 59655, France


Based on experimental data obtained from triaxial tests and a hydrostatic test, a cup model was formulated. Two plastic mechanisms, respectively a deviatoric shearing and a pore collapse, are taken into account. This model also considers the influence of confining pressure. In this paper, the calibration of the model is detailed and numerical simulations of the main mechanical behavior of cement paste over a large range of stress are described, showing good agreement with experimental results. The case study shows that this cup model has extensive applicability for cement-based materials and other quasi-brittle and high-porosity materials in a complex stress state.

Keywords cup model   cement-based materials   plastic shearing mechanism   plastic pore collapse mechanism   numerical simulation  
Received 2010-04-02 Revised  Online: 2010-04-02 
DOI: 10.3882/j.issn.1674-2370.2010.01.011
This work was supported by the National Natural Science Foundation of China (Grant No. 50808066) and the Scientific Research Foundation for Returned Overseas Chinese Scholars.
Corresponding Authors: Yan ZHANG
Email: yan.zhang@hhu.edu.cn
About author:

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