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



Title: Comprehensive material characterization of asphalt concrete in tension based on a viscoelastoplastic model
Author(s): G. Chehab, Y. R. Kim, M. W. Witczak, R. Bonaquist
Paper category : conference
Book title: Sixth International RILEM Symposium on Performance Testing and Evaluation of Bituminous Materials
Editor(s): M. N. Partl
Print-ISBN: 2-912143-35-7
e-ISBN: 2912143772
Publisher: RILEM Publications SARL
Publication year: 2003
Pages: 534 - 540
Total Pages: 7
Nb references: 4
Language: English


Abstract: The objective of this paper is to develop an advanced material characterization model for asphalt aggregate mixtures. Two prerequisites that are required for developing the model are the decomposition of the strain response into its constituent components and the validation of the time-temperature superposition principle for asphalt concrete with growing damage, both of which are presented. Constitutive models for characterizing the viscoelastic response based on the work potential theory coupled with the correspondence principle and the viscoplastic response based on the strain hardening model are developed separately, and later integrated to form the final model. The model was successful in predicting the strain response for constant crosshead rate tests in tension to the point of localization.


Online publication: 2003-03-02
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2912143772.067