Optimization of Pin Position and Angle for Z-Pin-Reinforced Foam Core Sandwich Structures

Autor: Eduardo Fischer Kerche, Agnė Kairytė, Sylwia Członka, Amanda Albertin Xavier da Silva, Maikson Luiz Passaia Tonatto, Francisco Luiz Bresolin, Rafael de Avila Delucis, Sandro Campos Amico
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Materials, Vol 16, Iss 1, p 352 (2022)
Druh dokumentu: article
ISSN: 1996-1944
DOI: 10.3390/ma16010352
Popis: Sandwich panels (SP) are very promising components for structures as they ally high levels of specific stiffness and strength. Civil, marine and automotive industries are some examples of the sectors that use SPs frequently. This work demonstrates the potential of manufacturing Z-pin-reinforced foam core SPs, using a design strategy that indicated optimal values for both pin position and angle, keeping the same pin diameter as determined in a previous study. A simple search algorithm was applied to optimize each design, ensuring maximum flexural stiffness. Designs using optimal pin position, optimal pin angle and optimal values for both parameters are herein investigated using numerical and experimental approaches. The optimal pin position yielded an increase in flexural stiffness of around 8.0% when compared to the non-optimized design. In this same comparison, the optimal pin angle by itself increased the flexural stiffness by about 63.0%. Besides, the highest increase in the maximum load was found for those composites, molded with optimized levels of pin position and pin angle, which synergistically contributed to this result. All results were demonstrated with numerical and experimental results and there was a good agreement between them.
Databáze: Directory of Open Access Journals
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