Numerical Simulation of the Thermoviscoplastic Behaviour of Bituminous Concrete
The general framework of the paper deals with the finite element modelling of thermomechanical problems involving viscous materials. The study focuses on the statement of constitutive equations describing the thermoviscoplastic behaviour of bituminous concrete, as well as on their implementation in a finite element program. They are discretized thanks to two different schemes. Eventually, two sets of numerical results are presented. The first one is used to compare those schemes, whereas the second one consists of numerical simulations of real-size experiments performed on a road structure subjected to thermal and mechanical loadings.
KeywordsConstitutive Equation Finite Element Program Tensorial Function Implicit Euler Scheme Axial Strain Rate
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