سیویلیکا را در شبکه های اجتماعی دنبال نمایید.

3D AND THREE PHASE'S MICROMECHANICAL CONSTITUTIVE MODEL FOR THE UNIAXIAL COMPRESSION TEST OF CONCRETE

Publish Year: 1388
Type: Conference paper
Language: English
View: 3,305

This Paper With 13 Page And PDF Format Ready To Download

Export:

Link to this Paper:

Document National Code:

ICCD03_017

Index date: 11 October 2008

3D AND THREE PHASE'S MICROMECHANICAL CONSTITUTIVE MODEL FOR THE UNIAXIAL COMPRESSION TEST OF CONCRETE abstract

The mechanical behavior of concrete materials is strongly influenced by its microstructure. The macroscopic properties of concrete materials such as strength and stiffness are dependent on the properties of micromechanics. The advance of composite mechanics and advanced computing technologies has made possible the micromechanical analysis of concrete materials. At first the status of micromechanical modeling with special emphasis on the advantage and disadvantage of each model is presented. The current paper focuses on the geometrical description and numerical simulation of normal-weight concrete at the mesoscale. In the first part the numerical representation of concrete at the mesoscale is introduced. The internal structure of concrete is considered at the micro level, and is treated as a three phase material comprised of aggregate particle, matrix, and the aggregate- matrix interfaces the generation of the mesoscale geometry, the finite element discretisation and the applied material laws with micro plane theory are described. The main objective of this paper is to investigate the macroscopic behavior and progressive failure of concrete materials under static loading, as influenced by the properties of its constituents at the meso level.

3D AND THREE PHASE'S MICROMECHANICAL CONSTITUTIVE MODEL FOR THE UNIAXIAL COMPRESSION TEST OF CONCRETE Keywords:

3D AND THREE PHASE'S MICROMECHANICAL CONSTITUTIVE MODEL FOR THE UNIAXIAL COMPRESSION TEST OF CONCRETE authors

I Rasoolan

Ph.D Candidate of Civil Eng, Civil Eng. Faculty, K.N.T University, Tehran

S.A Sadrnejad

Prof.of Civil Eng, Civil Eng. Faculty, K.N.T University

A.R Bagheri

Associate Prof. of Civil Eng., Civil Eng. Faculty, K.N.T University