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Time-temperature superposition principle for bituminous mixtures
In the small strain domain (amplitudes below about 10−4), when considering 1D approach, the bituminous mixtures behaviour is linear viscoelastic, with a great thermal sensitivity and respects the Time-Temperature Superposition Principle (TTSP). In this paper, the generalisation of the TTSP is proposed for 3D. Measurements of complex Youngs modulus (E*) and complex Poisson's ratio (v*) during cyclic loadings are presented. v* is also shown dependent on frequency and temperature and respects the TTSP. A key result is that a very close shift factor is obtained for E* and v*. In a second step, experiments in the non linear domain (considering strains up to some percents) allow to propose a generalisation in the non linear domain of the TTSP. This work is associated with modeling development using the general thermo-viscoplastic model « DBN » (Di Benedetto & Neifar).
Time-temperature superposition principle for bituminous mixtures
In the small strain domain (amplitudes below about 10−4), when considering 1D approach, the bituminous mixtures behaviour is linear viscoelastic, with a great thermal sensitivity and respects the Time-Temperature Superposition Principle (TTSP). In this paper, the generalisation of the TTSP is proposed for 3D. Measurements of complex Youngs modulus (E*) and complex Poisson's ratio (v*) during cyclic loadings are presented. v* is also shown dependent on frequency and temperature and respects the TTSP. A key result is that a very close shift factor is obtained for E* and v*. In a second step, experiments in the non linear domain (considering strains up to some percents) allow to propose a generalisation in the non linear domain of the TTSP. This work is associated with modeling development using the general thermo-viscoplastic model « DBN » (Di Benedetto & Neifar).
Time-temperature superposition principle for bituminous mixtures
Nguyen, Hoang Minh (author) / Pouget, Simon (author) / Di Benedetto, Hervé (author) / Sauzéat, Cédric (author)
European Journal of Environmental and Civil Engineering ; 13 ; 1095-1107
2009-10-01
13 pages
Article (Journal)
Electronic Resource
Unknown
thermal sensitivity , linear viscoelasticity , linear behaviour , Time-Temperature Superposition Principle (TTSP) , master curve , shift factor , non linear domain , thermo-viscoplastic model. , thermosensibilité , viscoélasticité linéaire , comportement linéaire , principe de superposition temps-température , courbe maîtresse , coefficient de translation , domaine non linéaire , modèle thermoviscoplastique.
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