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Performance analysis of resilient bioinspired structural systems
Author(s): Reena R. Patel; Guillermo A. Riveros; David S. Thompson; Felipe J. Acosta; Carlos Colon; Edward J. Perkins; Jan Jeffery Hoover; John F. Peters
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Paper Abstract

Lightweight structures are in demand in many application areas since they provide an optimum use of available resources. For example, in the transportation and aviation industries, lightweight structures increase the energy efficiency. However, lightweight structures need to have adequate strength for their safe usage. This work investigates the performance of novel proof-of-concept structural systems developed based on the rostrum (snout) of the paddlefish. Numerical experiments are conducted on the conceptual prototypes of bioinspired, energy- dissipative mechanical system models with different lattice patterns that mimic those found in the rostrum of the paddlefish. The performance of the models is quantified in terms of deformations and maximum principal stresses experienced by the model under a blast load using fixed plate and cantilever beam boundary conditions. The bioinspired models showed identical trends of stress and deformation. However, the heterogeneous bioinspired structures showed a decrease of 30% in deformation and experienced lower stresses as compared to a structure with identical geometry and homogeneous material properties.

Paper Details

Date Published: 27 March 2018
PDF: 11 pages
Proc. SPIE 10593, Bioinspiration, Biomimetics, and Bioreplication VIII, 105930J (27 March 2018); doi: 10.1117/12.2295941
Show Author Affiliations
Reena R. Patel, U.S. Army Engineer Research and Development Ctr. (United States)
Guillermo A. Riveros, U.S. Army Engineer Research and Development Ctr. (United States)
David S. Thompson, Mississippi State Univ. (United States)
Felipe J. Acosta, Univ. de Puerto Rico (United States)
Carlos Colon, Univ. de Puerto Rico (United States)
Edward J. Perkins, U.S. Army Engineer Research and Development Ctr. (United States)
Jan Jeffery Hoover, U.S. Army Engineer Research and Development Ctr. (United States)
John F. Peters, Mississippi State Univ. (United States)


Published in SPIE Proceedings Vol. 10593:
Bioinspiration, Biomimetics, and Bioreplication VIII
Akhlesh Lakhtakia, Editor(s)

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