Reference number : GC-2017-Q2-04397, amendment number : , agreement type : G, recipient legal name : Lessard, Larry (McGill University)|Lessard, Larry (Université McGill), recipient country : CA, recipient province : nan, recipient city : Quebec|Québec, recipient postal code : nan, program name english : Collaborative Research and Development Grants - Project, program name french : Subventions de recherche et développement coopérative - projet, program purpose english : The purpose of this project is to improve analysis methods for anisotropic composites in order to optimize_x000D_
manufacturing of helicopter parts by the Automated Fiber Placement (AFP) process. Optimization objectives_x000D_
are to minimize weight while meeting strength requirements and fatigue life targets under complex spectrum_x000D_
loading while respecting composite manufacturing constraints. The project is based on previous experience_x000D_
where many difficulties arose during manufacturing of AFP parts. This led to conservative approaches and_x000D_
overdesigned parts when fiber directions were not perfectly aligned to the optimal directions. The intent is to_x000D_
improve manufacturing methods that will lead to increased fatigue life, reduced inspection time and costs by_x000D_
allowing more variation in the layups of parts. Tight tolerances on fiber directions in complex geometries (not_x000D_
always achievable by AFP) force the addition of multiple inspections. A better understanding of composite_x000D_
anisotropy will lead to more adequate tolerances that would be more easily achievable and thus reduce_x000D_
inspection requirements., program purpose french : The purpose of this project is to improve analysis methods for anisotropic composites in order to optimize_x000D_
manufacturing of helicopter parts by the Automated Fiber Placement (AFP) process. Optimization objectives_x000D_
are to minimize weight while meeting strength requirements and fatigue life targets under complex spectrum_x000D_
loading while respecting composite manufacturing constraints. The project is based on previous experience_x000D_
where many difficulties arose during manufacturing of AFP parts. This led to conservative approaches and_x000D_
overdesigned parts when fiber directions were not perfectly aligned to the optimal directions. The intent is to_x000D_
improve manufacturing methods that will lead to increased fatigue life, reduced inspection time and costs by_x000D_
allowing more variation in the layups of parts. Tight tolerances on fiber directions in complex geometries (not_x000D_
always achievable by AFP) force the addition of multiple inspections. A better understanding of composite_x000D_
anisotropy will lead to more adequate tolerances that would be more easily achievable and thus reduce_x000D_
inspection requirements., agreement title english : Optimization of automated fiber placement (AFP) process for complex helicopter geometries based on structural considerations, agreement title french : Optimization of automated fiber placement (AFP) process for complex helicopter geometries based on structural considerations, agreement number : CRDPJ, agreement value : 80000.0, agreement start date : 2017-09-20, 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 2019-2020)., additional information french : Subvention ou bourse octroyée s'appliquant à plus d'un exercice financier (2017-2018 à 2019-2020)., 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