The visco-elastic multilayer program VEROAD

Journal article (1996)

Authors

Faculty
Civil Engineering and Geosciences (CEG) (TU Delft)
Copyright: © 1996 Hopman, P.C.
Multilayer programs, linear visco-elastic, (permanent) deformation, stress, strain, Dissipated energy
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Published Date

01-01-1996

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Source:

HERON, 41 (1), 1996

ISSN:

0046-7316

Faculty

Civil Engineering and Geosciences

Abstract

The mathematical principles and derivation of a linear visco-elastic multilayer computer program are described. The mathematical derivation is based on Fourier Transformation. The program is called VEROAD, which is an acronym for Visco-Elastic ROad Analysis Delft. The program allows calculation of physical quantities like time-dependent displacements, stresses and strains, permanent deformations and dissipated energies in a multi-layer system built of visco-elastic materials. All the quantities thus depend on the velocity of the traffic, which explicitly comes into the calculations. The material model assumes the bulk modulus to be elastic and the shear modulus to be visco-elastic. The latter follows the Burgers'model. For illustrative purposes, some mechanical analyses of asphaltic road structures are shown.

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