Journal article

Comparative studies of 313-constitutive models for concrete: application to mixed-mode fracture

P Pivonka, J Ozbolt, R Lackner, HA Mang

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING | WILEY | Published : 2004

Abstract

This paper focuses on the predictive capabilities of 3D-constitutive models for concrete when used for the simulation of mixed-mode fracture in consequence of shear-tensile loading. For this purpose, two types of constitutive models are chosen. Models belonging to the first type such as the extended Leon model (ELM) and two multi-surface models are formulated within the framework of plasticity theory. The ELM (J. Eng. Mech. (ASCE) 1994; 120:1983-2011), a single-surface model, accounts for the dependence of the concrete strength on the Lode angle. The first multi-surface model consists of a tension-cut-off for the description of tensile cracking of concrete and a Drucker-Prager surface for th..

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