Paper Title:
Study on Fractal Elastic Damage Constitutive Law for Concrete Material under Static Load
  Abstract

The stochastic properties and discreteness of macroscopic property for concrete appear on mechanical property and fracture surface. In consideration of stochastik and discreteness of fracture surface, a class of mesoscopic damage mechanics model of concrete based on spring model, are put forward to understand the real damage evolution characteristics of concrete at the level of constitutional law. A kind of spring-slipper model is introduced to reflect the elastic-plastic damage behavior. It has been confirmed that fracture surface of concrete has self-affine fractal characteristic only on a certain spatial scale, but the actual fracture surface of concrete is a stochastic surface with multi-fractal characteristics. Uniaxial test was operated, combined with the Computerized Tomography test of concrete, to study the evolution of crack surface from mesoscopic level to macroscopic level. Compared with the existing damage constitutive law and experimental results preliminarily, the feasibility of fractal damage constitutive law is verified.

  Info
Periodical
Chapter
Chapter 3: Chemical and Biomedical Engineering
Edited by
Honghua Tan
Pages
1269-1273
DOI
10.4028/www.scientific.net/AMM.138-139.1269
Citation
M. Xie, S. S. Zheng, "Study on Fractal Elastic Damage Constitutive Law for Concrete Material under Static Load", Applied Mechanics and Materials, Vols. 138-139, pp. 1269-1273, 2012
Online since
November 2011
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Price
$32.00
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