Research on the stochastic damage constitutive model of concrete materials

Title: Research on the stochastic damage constitutive model of concrete materials
Author(s): J. Li, Z. Lu, Q. Zhang
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: 44 - 54
Total Pages: 11
Nb references: 16
Language: English

Abstract: 
A micro-damage physics model of concrete materials is proposed in this paper, which can be used to explain the micro- damage development of high performance concrete at the constitutive level. The stochastic damage constitutive models are presented respectively for concrete materials subjected to uniaxial tensile-uniaxial compressive as well as biaxial tensile and compressive load. By introducing the stochastic modeling theory, and making use of the acoustics emission experiment data during uniaxial tensile test of concrete material, the distribution parameters of the failure strain stochastic field of micro- damage unit are determined. Compared with the stress-strain experiment data of high performance concrete, the results show that the introduced stochastic damage constitutive relationship could reflect failure mechanism of concrete materials reasonably.

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