Paper Title:
The Dynamic Mechanical Constitutive Equation of Concrete under High Temperture
  Abstract

Based on the test by the split Hopkinson Pressure Bar (SHPB), in this papaer the research on the dynamic mechanical properties of concrete under high temperture has been conducted, the influence law of temperature and strain rate on the mechanical peoperties has been analyzed, and the dynamic stress-strain curves of concrete under high temperature have been obtained. Analysis indicate that the concrete strain rate hardening effect is coupled with the high temperature weakening effect. Therefore, on the basis of classical damage theoretical model, in accordance with the concrete high-temperature dynamic mechanical characteristics, a unified equation is established to describe the whole process of concrete dynamic stress-strain relationship under high temperature, which is well coincided with the test results.

  Info
Periodical
Chapter
Chapter 5: Traditional Construction Materials
Edited by
Xuejun Zhou
Pages
782-785
DOI
10.4028/www.scientific.net/AMM.99-100.782
Citation
B. Jia, Z. L. Li, J. L. Tao, C. T. Zhang, "The Dynamic Mechanical Constitutive Equation of Concrete under High Temperture", Applied Mechanics and Materials, Vols. 99-100, pp. 782-785, 2011
Online since
September 2011
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Price
$32.00
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