Author(s)

S. Takada & N. Hassani

Abstract

A computer program is developed for 2-D fracture analysis and failure monitoring of structures under dynamic loading, using the Distinct Element Algorithm. This program is used for simulating the fracture and failure of the failed reinforced concrete structural elements. In this paper, the crack pattern and fracture mechanism of a 15x30 cm concrete specimen is studied in three cases of plain concrete, longitudinally reinforced with and without stirrups, by simulating the uniaxial compression test. A parametric study is also done on the effects of strength parameters and failure criteria on strain hardening and softening in stress-strain relationship of the concrete. In a qualitative analysis, steel reinforcement modeling and buckling shape of longitudinal bars are i

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