Reference number : GC-2017-Q4-01148, amendment number : , agreement type : G, recipient legal name : Maghoul, Pooneh (University of Manitoba)|Maghoul, Pooneh (Université du Manitoba), recipient country : CA, recipient province : nan, recipient city : Manitoba, recipient postal code : nan, program name english : Engage Grants for universities, program name french : Subventions d'engagement partenarial pour les universités, program purpose english : Pavement structures reach performance limits when there are multiple deteriorations caused by repeated_x000D_
vehicle loading and environmental effects. Therefore acquiring detailed information about the state of the_x000D_
pavement structures is an important element in rehabilitation planning of sections showing significant damage._x000D_
Non-Destructive-Testing (NDT) Methods have been broadly used for structural health monitoring and low-cost_x000D_
assessment in transportation. Falling Weight Deflectometer (FWD) is one of the most popular NDT techniques_x000D_
in characterisation of the mechanical properties of the pavement structure. The FWD test measures the surface_x000D_
deflections caused by dropping a known mass from a specific height. The presence of moisture in the pavement_x000D_
structure can significantly affect the performance of the pavement. Another important issue to the pavement_x000D_
maintenance is the seasonal factor in cold regions. The mechanical properties of the layers constituting the_x000D_
multilayered flexible pavement system can be determined by using a back-calculation algorithm based on_x000D_
acquired surface displacement data. The current practical state-of-the-art of this method is limited to the_x000D_
quasi-static inversion of the maximum measured deflections. However, this approach does not take advantage_x000D_
of the additional information contained in the stress wave time histories such as damping, moisture content,_x000D_
and the effect of porous structure. The accuracy of determining the mechanical properties of the layers would_x000D_
also improve by using a comprehensive dynamic analysis rather than a quasi-static analysis. The objective of_x000D_
the proposed research is to develop an algorithm for the material characterization of the pavement structure_x000D_
through a least square-based inversion technique._x000D_
FPrimeC Solutions specializes in the design and development of innovative Non-Destructive Testing_x000D_
equipment and Structural Health Monitoring Systems for testing materials and structures. FPrimeC is interested_x000D_
in developing an innovative algorithm to achieve more accurate and more reliable information using FWD to_x000D_
evaluate the material properties of the pavement structure., program purpose french : Pavement structures reach performance limits when there are multiple deteriorations caused by repeated_x000D_
vehicle loading and environmental effects. Therefore acquiring detailed information about the state of the_x000D_
pavement structures is an important element in rehabilitation planning of sections showing significant damage._x000D_
Non-Destructive-Testing (NDT) Methods have been broadly used for structural health monitoring and low-cost_x000D_
assessment in transportation. Falling Weight Deflectometer (FWD) is one of the most popular NDT techniques_x000D_
in characterisation of the mechanical properties of the pavement structure. The FWD test measures the surface_x000D_
deflections caused by dropping a known mass from a specific height. The presence of moisture in the pavement_x000D_
structure can significantly affect the performance of the pavement. Another important issue to the pavement_x000D_
maintenance is the seasonal factor in cold regions. The mechanical properties of the layers constituting the_x000D_
multilayered flexible pavement system can be determined by using a back-calculation algorithm based on_x000D_
acquired surface displacement data. The current practical state-of-the-art of this method is limited to the_x000D_
quasi-static inversion of the maximum measured deflections. However, this approach does not take advantage_x000D_
of the additional information contained in the stress wave time histories such as damping, moisture content,_x000D_
and the effect of porous structure. The accuracy of determining the mechanical properties of the layers would_x000D_
also improve by using a comprehensive dynamic analysis rather than a quasi-static analysis. The objective of_x000D_
the proposed research is to develop an algorithm for the material characterization of the pavement structure_x000D_
through a least square-based inversion technique._x000D_
FPrimeC Solutions specializes in the design and development of innovative Non-Destructive Testing_x000D_
equipment and Structural Health Monitoring Systems for testing materials and structures. FPrimeC is interested_x000D_
in developing an innovative algorithm to achieve more accurate and more reliable information using FWD to_x000D_
evaluate the material properties of the pavement structure., agreement title english : Material Characterization of the Pavement Structure Using FWDT, a Non-Destructive Testing Technique, agreement title french : Material Characterization of the Pavement Structure Using FWDT, a Non-Destructive Testing Technique, agreement number : EGP, agreement value : 25000.0, agreement start date : 2018-03-07, agreement end date : nan, description english : nan, description french : nan, expected results english : nan, expected results french : nan, additional information english : Grant or Award spanning more than one fiscal year (2017-2018 to 2018-2019)., additional information french : Subvention ou bourse octroyée s'appliquant à plus d'un exercice financier (2017-2018 à 2018-2019)., owner organization : nserc-crsng, owner organization title : Natural Sciences and Engineering Research Council of Canada | Conseil de recherches en sciences naturelles et en génie du Canada