Articles liés à CHARACTERIZATION OF ASPHALT CONCRETE MIXTURES: MICRODAMAGE...

CHARACTERIZATION OF ASPHALT CONCRETE MIXTURES: MICRODAMAGE AND HEALING - Couverture souple

Si, Zhiming

 
9783639185454: CHARACTERIZATION OF ASPHALT CONCRETE MIXTURES: MICRODAMAGE AND HEALING
Couverture souple
ISBN 10 : 3639185455 ISBN 13 : 9783639185454
Editeur : VDM Verlag, 2009

Synopsis

Asphalt concrete exhibits creep and relaxation behaviors. Its magnitude normally depends strongly on temperature, stress level and loading duration. Attempts to predict the crack initiation and propagation in fracture of asphalt concrete are complicated by all such variables. Pseudo strain concept in the correspondence principle has been extended to nonlinear viscoelastic behavior of asphalt mixtures by introducing a nonlinear reference modulus. It has been demonstrated that dissipated pseudo strain energy is a damage parameter. It can be successfully used to quantify the fatigue microdamage and tertiary microdamage of permanent deformation. The significant recovery of pseudo stiffness after introducing rest periods indicates the healing effect due to rest periods. Modified Paris? law in which the J-integral rather than stress intensity factor is used is applied to quantify the microdamage initiation during fatigue and permanent deformation tests.

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Éditeur
VDM Verlag
Date d'édition
2009
Langue
anglais
ISBN 10 
3639185455
ISBN 13 
9783639185454
Reliure
Broché
Nombre de pages
180
Coordonnées du fabricant
non disponible
Personne responsable
non disponible