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Modeling viscoelastic crack growth in hot-mix asphalt concrete mixtures using a disk-shaped compact tension test / Sungho Mun in Journal of engineering mechanics, Vol. 137 N° 6 (Juin 2011) 

Public ISBD [article]  in Journal of engineering mechanics > Vol. 137 N° 6 (Juin 2011) . - pp.431-438 Titre : Modeling viscoelastic crack growth in hot-mix asphalt concrete mixtures using a disk-shaped compact tension test Type de document : texte imprimé Auteurs : Sungho Mun, Auteur ; Hyun-Jong Lee, Auteur Année de publication : 2011 Article en page(s) : pp.431-438 Note générale : Mécanique appliquée Langues : Anglais (eng) Mots-clés : Continuous  spectrum  Kelvin  model  Prony-series  representation  Hot-mix  asphalt  Viscoelasticity Résumé : The growth of viscoelastic cracks in hot-mix asphalt (HMA) concrete mixtures was simulated by using a disk-shaped compaction test. Modeling techniques, including the interconversion and continuous spectrum methods, the harmony search algorithm, and the state-variable approach, substantially enhanced the computational efficiency of the generalized J-integral. The generalized J-integral was used for determining the viscoelastic crack growth parameter on the basis of the fracture mechanics under cyclic loading conditions. This paper shows that the parameter can be used for simulating the viscoelastic crack growth in HMA concrete mixtures even under conditions of different loading magnitudes and frequencies. DEWEY : 620.1 ISSN : 0733-9399 En ligne : http://ascelibrary.org/emo/resource/1/jenmdt/v137/i6/p431_s1?isAuthorized=no [article] Modeling viscoelastic crack growth in hot-mix asphalt concrete mixtures using a disk-shaped compact tension test [texte imprimé] / Sungho Mun, Auteur ; Hyun-Jong Lee, Auteur . - 2011 . - pp.431-438. Mécanique appliquée Langues : Anglais (eng) in Journal of engineering mechanics > Vol. 137 N° 6 (Juin 2011) . - pp.431-438 Mots-clés : Continuous  spectrum  Kelvin  model  Prony-series  representation  Hot-mix  asphalt  Viscoelasticity Résumé : The growth of viscoelastic cracks in hot-mix asphalt (HMA) concrete mixtures was simulated by using a disk-shaped compaction test. Modeling techniques, including the interconversion and continuous spectrum methods, the harmony search algorithm, and the state-variable approach, substantially enhanced the computational efficiency of the generalized J-integral. The generalized J-integral was used for determining the viscoelastic crack growth parameter on the basis of the fracture mechanics under cyclic loading conditions. This paper shows that the parameter can be used for simulating the viscoelastic crack growth in HMA concrete mixtures even under conditions of different loading magnitudes and frequencies. DEWEY : 620.1 ISSN : 0733-9399 En ligne : http://ascelibrary.org/emo/resource/1/jenmdt/v137/i6/p431_s1?isAuthorized=no