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Study on the influence of high temperature on micromechanical damage and mechanical degradation of concrete



Title: Study on the influence of high temperature on micromechanical damage and mechanical degradation of concrete
Author(s): W. Xie, T. Cheng, B. Zhu, X. Guang
Paper category : conference
Book title: International Conference on Advances in Concrete and Structures
Editor(s): Ying-shu Yuan, Surendra P. Shah and Heng-lin Lü
Print-ISBN: 2-912143-41-1
e-ISBN: 2351580176
Publisher: RILEM Publications SARL
Publication year: 2003
Pages: 499 - 504
Total Pages: 6
Nb references: 7
Language: English


Abstract: 
In this paper, mechanical characteristics of concrete subjected to high temperature have been investigated under uniaxial compression. The damage regularities of the strength and deformation behavior are given for concrete at high temperature. To predict the mechanical behavior of quasi-brittle materials (i.e. concrete), it may be necessary to combine elastoplasticity theories and continuum damage mechanics, an elastoplastic damage model is proposed within a framework that automatically meets the restrictions of thermodynamics; The thermal strain and thermal damage at notch of the arch concrete specimen are tested by the electrometrical method and ultrasonic method. The failure mechanism of concrete thermal damage is explained.


Online publication: 2003-08-10
Publication type : full_text
Public price (Euros): 0.00


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