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Lightweight cost-effective hybrid materials for energy absorption applications
Marwa A Abd El-Baky1, Mahmoud M Awd Allah2, Madeha Kamel3
1Mechanical Design and Production Engineering Department, Zagazig University, Zagazig, 44519, Egypt. dr.marwa2013@yahoo.com.
Scientific Reports
|December 6, 2022
Summary
Hybrid fiber-reinforced polymer/metal pipes show enhanced crashworthiness. The Al/2J/4G/2J pipe achieved the highest energy absorption, making it suitable for automotive energy-absorbing components.
Area of Science:
- Materials Science
- Mechanical Engineering
- Polymer Science
Background:
- Polymer/metal pipes are increasingly used in automotive applications for energy absorption.
- Optimizing fiber hybridization and layering is crucial for enhancing crashworthiness.
- Aluminum (Al) pipes reinforced with jute (J) and glass (G) fibers offer potential for improved performance.
Purpose of the Study:
- To experimentally investigate the effect of fiber hybridization and layering sequence on the crashworthiness of polymer/metal pipes.
- To evaluate the deformation history and energy absorption capabilities of jute/glass reinforced epoxy over-wrapped aluminum pipes.
- To determine the optimal configuration for enhanced energy absorption in automotive applications.
Main Methods:
- Preparation of aluminum pipes over-wrapped with jute/glass reinforced epoxy using hand wet wrapping.
- Subjecting the prepared pipes to axial quasi-static compressive loads.
- Measurement and analysis of load-displacement plots and crashworthiness indicators (peak load, mean load, total energy absorption, specific energy absorption, crush force efficiency).
Main Results:
- The Al/2J/4G/2J pipe configuration exhibited the highest specific energy absorption, reaching approximately 42.92 kJ/g.
- This represents a 20.56% enhancement in specific energy absorption compared to pure aluminum pipes.
- The Al/2J/4G/2J specimens demonstrated superior performance across peak crushing load, mean crushing load, and total energy absorption.
Conclusions:
- Fiber hybridization and layering sequence significantly influence the crashworthiness of polymer/metal pipes.
- The Al/2J/4G/2J pipe configuration is a promising candidate for effective energy-absorbing components in automobiles.
- Further research into optimizing these composite structures can lead to advancements in vehicle safety.
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