Numerical finite element formulation of the 3D linear viscoelastic material model: Complex Poisson's ratio of bituminous mixtures

• Autorzy: Allou F. , Takarli M. , Dubois F. , Petit C. , Absi J.

Identyfikatory

DOI

10.1016/j.acme.2015.02.003

• Języki publikacji: EN

Abstrakty

EN

Poisson's ratio in asphalt mixture is a time dependent (in time domain) or a complex frequency dependent quantity (in the frequency domain). This paper develops a 3D linear viscoelastic formulation in order to characterize the dynamic modulus (E*) and complex Poisson's ratio (v*) of mixtures. Under the hypothesis of isotropy, two complex moduli, the shear (G*) and bulk moduli (K*) are necessary to determine the dynamic Young's modulus and complex Poisson's ratio. The proposed model is implemented in the Cats3M finite element package. A systematic procedure for identifying the model parameters is discussed. Finally, the model is validated by comparing the model predictions with experimental data on asphalt mixture. This comparison shows that the presented constitutive model is able of predicting the 3D linear behaviour of asphalt mixtures.

Słowa kluczowe

EN

asphalt mixture; Poisson's ratio; dynamic modulus; linearly viscoelasticity; finite element

PL

asfalt; moduł dynamiczny; lepkosprężystość

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2015
• Tom: Vol. 15, no. 4
• Strony: 1138--1148
• Opis fizyczny: Bibliogr. 35 poz., rys., tab., wykr.

Twórcy

autor

Allou F.

• Groupe d’Etude des Matériaux Hétérogènes (GEMH), Equipe Génie Civil et Durabilité, Université de Limoges, Boulevard Jacques Derche, 19300 Egletons, France

autor

Takarli M.

• Groupe d’Etude des Matériaux Hétérogènes (GEMH), Equipe Génie Civil et Durabilité, Université de Limoges, Boulevard Jacques Derche, 19300 Egletons, France

autor

Dubois F.

• Groupe d’Etude des Matériaux Hétérogènes (GEMH), Equipe Génie Civil et Durabilité, Université de Limoges, Boulevard Jacques Derche, 19300 Egletons, France

autor

Petit C.

• Groupe d’Etude des Matériaux Hétérogènes (GEMH), Equipe Génie Civil et Durabilité, Université de Limoges, Boulevard Jacques Derche, 19300 Egletons, France

autor

Absi J.

• Groupe d’Etude des Matériaux Hétérogènes, Equipes Matériaux Minéraux de Grande Diffusion, Centre Européen de la Céramique, 12, rue Atlantis, 87068 Limoges, France

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