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A material model for creep and fatigue applied to asphalt

Herz, Elisabeth and Vormwald, Michael (2007):
A material model for creep and fatigue applied to asphalt.
In: Advances in Construction Materials , pp. 325-333, (ISBN-13 978-3-540-72447-), [Article]

Abstract

There is an increasing need for the use of numerical methods in road design. Here, the main difficulty lies in modeling the highly complex, nonlinear material behaviour of asphalt. In the following paper, a material model based on relationships for quasibrittle materials is presented. This model is intended to describe asphalt behaviour under different loading types within the framework of the finite element method. Plastic deformation, damage and crack development as well as viscous processes are treated by combining plasticity theory and continuum damage theory with a rheological model [1]. Damage resulting from short-term loading as well as long-term or cyclic loading can likewise be described. The model is implemented into the finite element program Abaqus and is used to simulate tests on asphalt specimens. It can be stated that, with appropriate calibration, the model is capable of describing the material behaviour under short-term and long-term or cyclic loading conditions.

Item Type: Article
Erschienen: 2007
Creators: Herz, Elisabeth and Vormwald, Michael
Title: A material model for creep and fatigue applied to asphalt
Language: English
Abstract:

There is an increasing need for the use of numerical methods in road design. Here, the main difficulty lies in modeling the highly complex, nonlinear material behaviour of asphalt. In the following paper, a material model based on relationships for quasibrittle materials is presented. This model is intended to describe asphalt behaviour under different loading types within the framework of the finite element method. Plastic deformation, damage and crack development as well as viscous processes are treated by combining plasticity theory and continuum damage theory with a rheological model [1]. Damage resulting from short-term loading as well as long-term or cyclic loading can likewise be described. The model is implemented into the finite element program Abaqus and is used to simulate tests on asphalt specimens. It can be stated that, with appropriate calibration, the model is capable of describing the material behaviour under short-term and long-term or cyclic loading conditions.

Journal or Publication Title: Advances in Construction Materials
Number: ISBN-13 978-3-540-72447-
Divisions: 13 Department of Civil and Environmental Engineering Sciences > Institute of Steel Constructions and Material Mechanics > Fachgebiet Werkstoffmechanik
13 Department of Civil and Environmental Engineering Sciences > Institute of Steel Constructions and Material Mechanics
13 Department of Civil and Environmental Engineering Sciences
Date Deposited: 02 Feb 2015 09:44
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