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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Bergh, Wim Van Den
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2022Thermal performance of a controllable pavement solar collector prototype with configuration flexibilitycitations
- 2021Introducing an improved testing method to evaluate the fatigue resistance of bituminous mortars
- 2021Investigation of the effect of short-term ageing on rejuvenated reclaimed asphalt binder
- 2021Exploring the oxidative mechanisms of bitumen after laboratory short- and long-term ageingcitations
- 2021Influence of soft binder and rejuvenator on the mechanical and chemical properties of bituminous binderscitations
- 2020Cementitious binders and reclaimed asphalt aggregates for sustainable pavement base layerscitations
- 2020Experimental investigation of the oxidative ageing mechanisms in bitumencitations
- 2018Recycling. In : Testing and Characterization of Sustainable Innovative Bituminous Materials and Systemscitations
- 2017The influence of mixture composition, adhesion promotor and compaction degree on the groove stability of grooved Marshall asphaltcitations
- 2016Identification of pavement material properties using a scanning laser Doppler vibrometercitations
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document
Identification of pavement material properties using a scanning laser Doppler vibrometer
Abstract
This paper presents an inverse modeling approach to estimate mechanical properties of asphalt concrete (i.e. Young's modulus E, Poisson ratio v and damping coefficients). Modal analysis was performed on an asphalt slab using a shaker to excite the specimen and an optical measurement system (a Scanning Laser Doppler Vibrometer or SLDV) to measure the velocity of a measurement grid on the surface of the slab. The SLDV has the ability to measure the vibration pattern of an object with high accuracy, short testing time and without making any contact. The measured data were used as inputs for a frequency domain model parameter estimation method (the Polymax estimator). Meanwhile, natural frequencies and damping ratios of the system were calculated using a Finite Element Modeling (FEM) method. Then, the Modal Assurance Criterion (MAC) was used to pair the mode shapes of the structure determined by measurements and estimated by FEM. By changing the inputs of the FEM analysis (E, v and damping coefficients of the material) iteratively and minimizing the discrepancy between paired natural frequencies and damping ratios of the system estimated using the Polymax estimator and calculated by FEM, the Young's modulus, Poisson ratio and damping coefficients of the asphalt slab were estimated.