Journal
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
Volume 30, Issue 16, Pages 3245-3256Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/15376494.2022.2072029
Keywords
Biocomposite; bumper beam; energy absorption; natural fibers
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This work aims to analyze the influence of the cross-section shape of a fully biodegradable composite bumper beam. Flax/PLA bumper beams with four different degrees of roundness were manufactured. Specimens were subjected to low velocity impacts and the post-impact behavior was evaluated through three-point bending tests. The results indicate that different cross-section shapes can be selected depending on whether the objective is to maximize impact performance or post-impact residual properties.
The objective of this work is to analyze the influence of the cross-section of a bumper beam made of fully biodegradable composites. Flax/PLA bumper beams were manufactured with four types of cross-sections with different degree of roundness. Specimens were subjected to low velocity impacts and the post-impact behavior is evaluated under three-point bending tests. Results indicate that different cross-sections can be selected if the objective is to maximize the impact performance or the post-impact residual properties. The bumper beam with the higher roundness exhibits the best impact performance, while an intermediate section exhibits the best after impact residual mechanical properties.
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