Version 1
: Received: 14 August 2024 / Approved: 15 August 2024 / Online: 15 August 2024 (10:46:46 CEST)
How to cite:
Kaczyński, P.; Skwarski, M.; Dmitruk, A.; Makuła, P.; Ludwiczak, J. The Designs and Testing of Biodegradable Inserts for Enhanced Crashworthiness in Sports Helmets. Preprints2024, 2024081139. https://doi.org/10.20944/preprints202408.1139.v1
Kaczyński, P.; Skwarski, M.; Dmitruk, A.; Makuła, P.; Ludwiczak, J. The Designs and Testing of Biodegradable Inserts for Enhanced Crashworthiness in Sports Helmets. Preprints 2024, 2024081139. https://doi.org/10.20944/preprints202408.1139.v1
Kaczyński, P.; Skwarski, M.; Dmitruk, A.; Makuła, P.; Ludwiczak, J. The Designs and Testing of Biodegradable Inserts for Enhanced Crashworthiness in Sports Helmets. Preprints2024, 2024081139. https://doi.org/10.20944/preprints202408.1139.v1
APA Style
Kaczyński, P., Skwarski, M., Dmitruk, A., Makuła, P., & Ludwiczak, J. (2024). The Designs and Testing of Biodegradable Inserts for Enhanced Crashworthiness in Sports Helmets. Preprints. https://doi.org/10.20944/preprints202408.1139.v1
Chicago/Turabian Style
Kaczyński, P., Piotr Makuła and Joanna Ludwiczak. 2024 "The Designs and Testing of Biodegradable Inserts for Enhanced Crashworthiness in Sports Helmets" Preprints. https://doi.org/10.20944/preprints202408.1139.v1
Abstract
The article addresses manufacturing structures made of biodegradable materials that can be successfully used as energy-absorbing liner of sports helmets of all kinds, replacing the previously used expanded polystyrene. The paper is focused on injection technological tests and tensile tests (in quasi-static and dynamic conditions) of several composites based on a PLA matrix with the addition of other biodegradable softening agents, such as PBAT and TPS. Next, the thin-walled elements (dimensions of 55 x 55 x 20 mm) were manufactured and evaluated using a spring-loaded drop hammer. The 60J impact energy was tested according to EN 1078 standard. The dynamic crushing testing included checking the influence of the materials temperature (-20, 0, 20, and 40 °C) and the impact velocity. The PLA15PBAT85 blend was selected as the most effective material in terms of its use as energy-absorbing liner for sport helmets.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
