Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Anisotropy of bituminous mixture in the linear viscoelastic domain

Anisotropy of bituminous mixture in the linear viscoelastic domain Abstract Some anisotropic properties in the linear viscoelastic domain of bituminous mixtures compacted with a French LPC wheel compactor are highlighted in this paper. Bituminous mixture is generally considered as isotropic even if the compaction process on road or in laboratory induces anisotropic properties. Tension–compression complex modulus tests have been performed on parallelepipedic specimens in two directions: (i) direction of compactor wheel movement (direction I, which is horizontal) and (ii) direction of compaction (direction II, which is vertical). These tests consist in measuring sinusoidal axial and lateral strains as well as sinusoidal axial stress, when sinusoidal axial loading is applied on the specimen. Different loading frequencies and temperatures are applied. Two complex moduli, \(E_{\mathrm{I}} ^{*}\) and \(E_{\mathrm{II}}^{*}\), and four complex Poisson’s ratios, \(\nu_{\text{II-I}}^{*}\), \(\nu_{\text{III-I}}^{*}\), \(\nu_{\text{I-II}}^{*}\) and \(\nu_{\text{III-II}}^{*}\), were obtained. The vertical direction appears softer than the other ones for the highest frequencies. There are very few differences between the two directions I and II for parameters concerning viscous effects (phase angles \(\varphi(E_{\mathrm{I}})\) and \(\varphi(E_{\mathrm{II}})\), and shift factors). The four Poisson’s ratios reveal anisotropic properties but rheological tensor can be considered as symmetric when considering very similar values obtained for the two measured parameters (I-II and II-I) In addition, an anisotropic 3 dimensional version of the “2S2P1D” (2 springs, 2 parabolic creep elements and 1 dashpot) model, developed at the University of Lyon—ENTPE laboratory, is presented and used to simulate experimental results. The model simulation provides a good fit to the data. Stability of the material could also be investigated on the whole frequency–temperature range. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Mechanics of Time-Dependent Materials Springer Journals

Anisotropy of bituminous mixture in the linear viscoelastic domain

Loading next page...
 
/lp/springer-journals/anisotropy-of-bituminous-mixture-in-the-linear-viscoelastic-domain-iUCHuK6CwU

References (49)

Publisher
Springer Journals
Copyright
2016 Springer Science+Business Media Dordrecht
ISSN
1385-2000
eISSN
1573-2738
DOI
10.1007/s11043-016-9305-0
Publisher site
See Article on Publisher Site

Abstract

Abstract Some anisotropic properties in the linear viscoelastic domain of bituminous mixtures compacted with a French LPC wheel compactor are highlighted in this paper. Bituminous mixture is generally considered as isotropic even if the compaction process on road or in laboratory induces anisotropic properties. Tension–compression complex modulus tests have been performed on parallelepipedic specimens in two directions: (i) direction of compactor wheel movement (direction I, which is horizontal) and (ii) direction of compaction (direction II, which is vertical). These tests consist in measuring sinusoidal axial and lateral strains as well as sinusoidal axial stress, when sinusoidal axial loading is applied on the specimen. Different loading frequencies and temperatures are applied. Two complex moduli, \(E_{\mathrm{I}} ^{*}\) and \(E_{\mathrm{II}}^{*}\), and four complex Poisson’s ratios, \(\nu_{\text{II-I}}^{*}\), \(\nu_{\text{III-I}}^{*}\), \(\nu_{\text{I-II}}^{*}\) and \(\nu_{\text{III-II}}^{*}\), were obtained. The vertical direction appears softer than the other ones for the highest frequencies. There are very few differences between the two directions I and II for parameters concerning viscous effects (phase angles \(\varphi(E_{\mathrm{I}})\) and \(\varphi(E_{\mathrm{II}})\), and shift factors). The four Poisson’s ratios reveal anisotropic properties but rheological tensor can be considered as symmetric when considering very similar values obtained for the two measured parameters (I-II and II-I) In addition, an anisotropic 3 dimensional version of the “2S2P1D” (2 springs, 2 parabolic creep elements and 1 dashpot) model, developed at the University of Lyon—ENTPE laboratory, is presented and used to simulate experimental results. The model simulation provides a good fit to the data. Stability of the material could also be investigated on the whole frequency–temperature range.

Journal

Mechanics of Time-Dependent MaterialsSpringer Journals

Published: Aug 1, 2016

Keywords: Solid Mechanics; Classical Mechanics; Characterization and Evaluation of Materials; Polymer Sciences

There are no references for this article.