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Crashworthy Performance of Sustainable Filled Structures Using Recycled Beverage Cans and Eco-Friendly Multi-Cell
Huijing Gao1, Jiangyang Xiang1, Junyu Lu1
1Key Laboratory of Traffic Safety on Track of Ministry of Education, School of Traffic & Transportation Engineering, Central South University, Changsha 410075, China.
Polymers
|February 13, 2025
Summary
Recycled beverage cans and eco-friendly fillers create sustainable structures for enhanced energy absorption. These novel designs offer improved crashworthiness and support circular economy principles.
Area of Science:
- Materials Science
- Mechanical Engineering
- Sustainable Engineering
Background:
- Resource recycling is crucial for achieving a circular economy and sustainable development.
- Developing sustainable energy absorption structures is essential for safety and environmental protection.
Purpose of the Study:
- To propose and realize a sustainable filled structure using recycled beverage cans and eco-friendly multi-cell fillers.
- To characterize the energy absorption performance and synergistic effects of these novel filled structures.
Main Methods:
- Quasi-static axial compression tests were performed on filled tubes.
- The influence of filling density and material on crashworthiness was investigated.
Main Results:
- Specific energy absorption (SEA) increased with higher filling densities.
- Polylactic acid (PLA) multi-cell filled tubes demonstrated higher SEA (up to 9.64 J/g) and withstood larger external forces.
- PLA with styrene (PLAS) multi-cell filled tubes exhibited superior loading stability and lower upper-limit compression (ULC) values (minimum 10%).
Conclusions:
- The proposed sustainable filled structures show promising energy absorption capabilities.
- Filling density and material significantly impact crashworthiness, offering design flexibility.
- These findings contribute to the development of innovative and sustainable energy absorption solutions.
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