Calculation of Viscous Energy Dissipation in Asphalt Pavements
This paper presents a method to evaluate the energy dissipation in the pavement, induced by the viscous behaviour of bituminous constituents. The introduced method starts from the experimental characterization of each material and goes to the determination of stress and strain field, as well as visc...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
RTU Press
2014-06-01
|
| Series: | The Baltic Journal of Road and Bridge Engineering |
| Subjects: | |
| Online Access: | https://bjrbe-journals.rtu.lv/article/view/3499 |
| _version_ | 1818042818714664960 |
|---|---|
| author | Simon Pouget Cédric Sauzéat Hervé Di Benedetto François Olard |
| author_facet | Simon Pouget Cédric Sauzéat Hervé Di Benedetto François Olard |
| author_sort | Simon Pouget |
| collection | DOAJ |
| description | This paper presents a method to evaluate the energy dissipation in the pavement, induced by the viscous behaviour of bituminous constituents. The introduced method starts from the experimental characterization of each material and goes to the determination of stress and strain field, as well as viscous dissipated energy, in a pavement structure under a rolling wheel. A classical French pavement structure is considered as an application example. First, the behaviour of bituminous materials is characterized with advanced complex modulus tests. Second, a rheological model is used to describe the linear visco-elastic behaviour of bituminous materials. This model was previously developed at the Civil Engineering and Buildings Department of University of Lyon/ENTPE and has already shown its ability to describe completely and precisely the observed behaviour of bituminous materials. In order to make calculation the Finite Element software is then used in a third step, with the previous material model. Detailed hypotheses to perform the simulation of a rolling wheel on the pavement structure are explained. Results of the simulation are presented in terms of dissipated energy inside the pavement for a 40 ton truck. To give an order of magnitude, an estimation of the fuel consumption excess is given. Different temperature and vehicle speeds are considered. The Time Temperature Superposition Principle has been applied to estimate the dissipated energy at any temperature and vehicle speed. The simulation results show that energy dissipation in bituminous pavement due to the rolling weight of the considered 40 ton truck may induce a fuel consumption excess of a few percent for very unfavourable climatic conditions. |
| first_indexed | 2024-12-10T08:52:22Z |
| format | Article |
| id | doaj.art-eee5e85ecd024dc1bd01bded806c4304 |
| institution | Directory Open Access Journal |
| issn | 1822-427X 1822-4288 |
| language | English |
| last_indexed | 2024-12-10T08:52:22Z |
| publishDate | 2014-06-01 |
| publisher | RTU Press |
| record_format | Article |
| series | The Baltic Journal of Road and Bridge Engineering |
| spelling | doaj.art-eee5e85ecd024dc1bd01bded806c43042022-12-22T01:55:33ZengRTU PressThe Baltic Journal of Road and Bridge Engineering1822-427X1822-42882014-06-019212313010.3846/bjrbe.2014.161929Calculation of Viscous Energy Dissipation in Asphalt PavementsSimon Pouget0Cédric Sauzéat1Hervé Di Benedetto2François Olard3EIFFAGE Travaux Publics, 8 rue du dauphiné 69960 Corbas, FranceDept of Civil Engineering and Building, University of Lyon, ENTPE (FRE CNRS 3237), 3 rue Maurice Audin 69518 Vaulx-en-Velin, FranceDept of Civil Engineering and Building, University of Lyon, ENTPE (FRE CNRS 3237), 3 rue Maurice Audin 69518 Vaulx-en-Velin, FranceEIFFAGE Travaux Publics, 8 rue du dauphiné 69960 Corbas, FranceThis paper presents a method to evaluate the energy dissipation in the pavement, induced by the viscous behaviour of bituminous constituents. The introduced method starts from the experimental characterization of each material and goes to the determination of stress and strain field, as well as viscous dissipated energy, in a pavement structure under a rolling wheel. A classical French pavement structure is considered as an application example. First, the behaviour of bituminous materials is characterized with advanced complex modulus tests. Second, a rheological model is used to describe the linear visco-elastic behaviour of bituminous materials. This model was previously developed at the Civil Engineering and Buildings Department of University of Lyon/ENTPE and has already shown its ability to describe completely and precisely the observed behaviour of bituminous materials. In order to make calculation the Finite Element software is then used in a third step, with the previous material model. Detailed hypotheses to perform the simulation of a rolling wheel on the pavement structure are explained. Results of the simulation are presented in terms of dissipated energy inside the pavement for a 40 ton truck. To give an order of magnitude, an estimation of the fuel consumption excess is given. Different temperature and vehicle speeds are considered. The Time Temperature Superposition Principle has been applied to estimate the dissipated energy at any temperature and vehicle speed. The simulation results show that energy dissipation in bituminous pavement due to the rolling weight of the considered 40 ton truck may induce a fuel consumption excess of a few percent for very unfavourable climatic conditions.https://bjrbe-journals.rtu.lv/article/view/3499pavementenergy dissipationviscous behaviourviscoelasticityfuel consumptionfinite element model (fem) |
| spellingShingle | Simon Pouget Cédric Sauzéat Hervé Di Benedetto François Olard Calculation of Viscous Energy Dissipation in Asphalt Pavements The Baltic Journal of Road and Bridge Engineering pavement energy dissipation viscous behaviour viscoelasticity fuel consumption finite element model (fem) |
| title | Calculation of Viscous Energy Dissipation in Asphalt Pavements |
| title_full | Calculation of Viscous Energy Dissipation in Asphalt Pavements |
| title_fullStr | Calculation of Viscous Energy Dissipation in Asphalt Pavements |
| title_full_unstemmed | Calculation of Viscous Energy Dissipation in Asphalt Pavements |
| title_short | Calculation of Viscous Energy Dissipation in Asphalt Pavements |
| title_sort | calculation of viscous energy dissipation in asphalt pavements |
| topic | pavement energy dissipation viscous behaviour viscoelasticity fuel consumption finite element model (fem) |
| url | https://bjrbe-journals.rtu.lv/article/view/3499 |
| work_keys_str_mv | AT simonpouget calculationofviscousenergydissipationinasphaltpavements AT cedricsauzeat calculationofviscousenergydissipationinasphaltpavements AT hervedibenedetto calculationofviscousenergydissipationinasphaltpavements AT francoisolard calculationofviscousenergydissipationinasphaltpavements |