Collapse Behavior and Energy Absorbing Characteristics of 3D-Printed Tubes with Different Infill Pattern Structures: An Experimental Study 


Vol. 24,  No. 7, pp. 2609-2622, Jul.  2023
10.1007/s12221-023-00207-7


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  Abstract

This work investigates the impact of infill pattern structure on the crashworthy performance and deformation history of 3D-printed tubes subjected to a quasi-static axial compression load. The proposed tubes were made from polylactic acid (PLA) using a 3D printing technique. Five infill pattern structures were adapted, i.e. circular, square, triangle, zigzag and cross patterns with 50% infill density. The crashworthy analysis was carried out by assessing different indicators, i.e. peak force (Fip), mean crush force (Fm) , total absorbed energy (U), specific absorbed energy (SEA), and crushing force efficiency (CFE). It was found that the square infill pattern shows the maximum Fip, Fm, U and SEA with values of (24.38 kN, 20.58 kN, 673.38 kJ, and 26.52) while zigzag infill pattern shows the highest CFE with a value of 0.91. The optimal infill pattern is determined using a Multi-Attribute Decision Making (MADM) method called Complex Proportional Assessment (COPRAS). The COPRAS results showed that the square infill pattern is the most effective energy absorbing structure.

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  Cite this article

[IEEE Style]

M. M. A. Allah, W. Abdel‑Aziem, M. A. A. El‑baky, "Collapse Behavior and Energy Absorbing Characteristics of 3D-Printed Tubes with Different Infill Pattern Structures: An Experimental Study," Fibers and Polymers, vol. 24, no. 7, pp. 2609-2622, 2023. DOI: 10.1007/s12221-023-00207-7.

[ACM Style]

Mahmoud M. Awd Allah, Walaa Abdel‑Aziem, and Marwa A. Abd El‑baky. 2023. Collapse Behavior and Energy Absorbing Characteristics of 3D-Printed Tubes with Different Infill Pattern Structures: An Experimental Study. Fibers and Polymers, 24, 7, (2023), 2609-2622. DOI: 10.1007/s12221-023-00207-7.

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