Comprehensive material characterization of asphalt concrete in tension based on a viscoelastoplastic model

Computational Constitutive Model for Predicting Nonlinear Viscoelastic Damage and Fracture Failure of Asphalt Concrete Mixtures

“…Furthermore, additional constitutive packages such as plastic and/or viscoplastic material packages can be integrated into the model to produce more accurate and comprehensive predictions at a wide range of temperatures and loading conditions. Several studies (Perl et al 1983;Uzan 1996;Lu and Wright 1998;Seibi et al 2001;Chehab et al 2003;Collop et al 2003;Park 2004;Tashman et al 2004) have demonstrated the effects of plastic and/or viscoplastic nature in modeling mechanical behavior of asphalt concrete mixtures and asphaltic pavements.…”

“…One of the well-known modeling approaches is via the analytical/experimental continuum damage mechanics approach as presented in studies by Park et al (1996), Lee et al (2000Lee et al ( , 2003, and many others (Daniel and Kim 2002;Masad et al 2002;Chehab et al 2003;Gibson et al 2003;Tashman et al 2004). Continuum damage models successfully predict structural degradation due to damage, but the models have limitations, since continuum damage modeling essentially ignores the heterogeneity in asphalt composites and hypothesizes that all damage in the asphalt sample can be averaged and represented by phenomenologically defined internal state variables called damage parameters.…”

Finite element analysis for airfield asphalt pavements rutting prediction

“…Chehab [9] developed an advanced material characterization procedure including the theoretical models and its supporting experimental testing protocols necessary for predicting the response of asphaltic mixtures subjected to tension loading. The model encompasses the elastic, viscoelastic, plastic and visco-plastic components of asphalt concrete behaviour.…”

Finite Element Analysis Of Airfield Flexible Pavement

“…Chehab [11] developed an advanced material characterization procedure including the theoretical models and its supporting experimental testing protocols necessary for predicting the response of asphaltic mixtures subjected to tension loading. The model encompasses the elastic, viscoelastic, plastic and visco-plastic components of asphalt concrete behaviour.…”