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J. Compos. Sci. 2018, 2(2), 22; https://doi.org/10.3390/jcs2020022

Multi-Objective Patch Optimization with Integrated Kinematic Draping Simulation for Continuous–Discontinuous Fiber-Reinforced Composite Structures

1
Karlsruhe Institute of Technology (KIT), 76131 Karlsruhe, Germany
2
Western University, London, ON N6A 5B9, Canada
*
Author to whom correspondence should be addressed.
Received: 26 February 2018 / Revised: 26 February 2018 / Accepted: 21 March 2018 / Published: 30 March 2018
(This article belongs to the Special Issue Discontinuous Fiber Composites)
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Abstract

Discontinuous fiber-reinforced polymers (DiCoFRP) in combination with local continuous fiber reinforced polymers (CoFRP) provide both a high design freedom and high weight-specific mechanical properties. For the optimization of CoFRP patches on complexly shaped DiCoFRP structures, an optimization strategy is needed which considers manufacturing constraints during the optimization procedure. Therefore, a genetic algorithm is combined with a kinematic draping simulation. To determine the optimal patch position with regard to structural performance and overall material consumption, a multi-objective optimization strategy is used. The resulting Pareto front and a corresponding heat-map of the patch position are useful tools for the design engineer to choose the right amount of reinforcement. The proposed patch optimization procedure is applied to two example structures and the effect of different optimization setups is demonstrated. View Full-Text
Keywords: multi-objective optimization; draping simulation; local reinforcement; evolutionary algorithm; patch optimization multi-objective optimization; draping simulation; local reinforcement; evolutionary algorithm; patch optimization
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Fengler, B.; Kärger, L.; Henning, F.; Hrymak, A. Multi-Objective Patch Optimization with Integrated Kinematic Draping Simulation for Continuous–Discontinuous Fiber-Reinforced Composite Structures. J. Compos. Sci. 2018, 2, 22.

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