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Author Spotlight: Enhancing Fiber Composite Laminate Quality with the Wet Hand Lay-Up/Vacuum Bag Process

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Bio-inspired impact-resistant composites.

L K Grunenfelder¹, N Suksangpanya², C Salinas¹

¹Department of Chemical and Environmental Engineering, University of California Riverside, Riverside, CA 92521, USA.

Acta Biomaterialia

|April 1, 2014

Summary

Mimicking the stomatopod dactyl club

Keywords:

Biomimetic Biomineralization Composites Modeling

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Area of Science:

Biomimetics and Materials Science
Structural Biology
Composite Materials Engineering

Background:

Biological composites, like the stomatopod's dactyl club, exhibit optimized structures for extreme functions.
The stomatopod dactyl club's helicoidal endocuticle architecture provides exceptional impact resistance and energy absorption.
This natural design offers a blueprint for advanced material engineering.

Purpose of the Study:

To investigate the application of the stomatopod dactyl club's helicoidal architecture in synthetic composite materials.
To determine if this biomimetic design enhances the performance of carbon fiber-epoxy composites under impact.
To explore the potential of helicoidal structures for improved toughness and damage resistance in engineered composites.

Main Methods:

Fabrication of carbon fiber-epoxy composites with a biomimetic helicoidal architecture.
Experimental impact testing to assess damage propagation and energy absorption.
Computational modeling to analyze the structural behavior of the helicoidal composites.

Main Results:

The helicoidal architecture significantly reduces through-thickness damage in composite panels during impact.
Composites incorporating the helicoidal design demonstrated increased toughness compared to conventional designs.
The biomimetic approach successfully replicated the impact resistance properties observed in the stomatopod club.

Conclusions:

The helicoidal design strategy, inspired by the stomatopod dactyl club, is effective in enhancing the impact performance of synthetic composites.
This biomimetic approach offers a promising pathway for developing high-performance composite materials.
Findings have direct implications for designing advanced composite components in demanding applications such as aerospace, automotive, and armor.