Start Date

April 2021

Document Type

Poster Session

Department

Engineering

Faculty Mentor

Asheesh Lanba, PhD

Keywords

composites, finite element analysis, helicoidal structure, Bouligand, CFRP

Abstract

The fist-like club of the peacock mantis shrimp, a 5-inch marine crustacean, can strike its prey with speed faster than a .22-caliber bullet with an impact force more than 1,000 times its own weight. Although these creatures punch so fast that it even boils the water, they don’t take any damage. This incredible insusceptibility is due to the arrangement of mineralized fiber layers in which each fibrous layer is laid at a slightly rotated angle to form a helicoidal structure that acts as a shock absorber for the club. The goal is to perform a finite element analysis to investigate the impact resistance and failure mechanism of the helicoidal stacking found in the club and compare it against the conventional unidirectional and quasi-isotropic structures.

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Apr 30th, 12:00 AM

Finite Element Analysis of Impact Resistant Composites Inspired by Peacock Mantis Shrimp

The fist-like club of the peacock mantis shrimp, a 5-inch marine crustacean, can strike its prey with speed faster than a .22-caliber bullet with an impact force more than 1,000 times its own weight. Although these creatures punch so fast that it even boils the water, they don’t take any damage. This incredible insusceptibility is due to the arrangement of mineralized fiber layers in which each fibrous layer is laid at a slightly rotated angle to form a helicoidal structure that acts as a shock absorber for the club. The goal is to perform a finite element analysis to investigate the impact resistance and failure mechanism of the helicoidal stacking found in the club and compare it against the conventional unidirectional and quasi-isotropic structures.

 

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