MetaMesh: A hierarchical computational model for design and fabrication of biomimetic armored surfaces
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Energy dissipation in bone.pdf
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Author(s)
Duro-Royo, Jorge
Zolotovsky, Katia
Mogas-Soldevila, Laia
Varshney, Swati Rani
Oxman, Neri
Boyce, Mary Cunningham
Ortiz, Christine
Date Issued
May 2014
Journal
Computer-Aided Design
Publisher
Elsevier B.V.
Citation
Duro-Royo, Jorge, Katia Zolotovsky, Laia Mogas-Soldevila, Swati Varshney, Neri Oxman, Mary C. Boyce, and Christine Ortiz. “MetaMesh: A Hierarchical Computational Model for Design and Fabrication of Biomimetic Armored Surfaces.” Computer-Aided Design 60 (March 2015): 14–27.
Version
Author's final manuscript
Abstract
Many exoskeletons exhibit multifunctional performance by combining protection from rigid ceramic components with flexibility through articulated interfaces. Structure-to-function relationships of these natural bioarmors have been studied extensively, and initial development of structural (load-bearing) bioinspired armor materials, most often nacre-mimetic laminated composites, has been conducted. However, the translation of segmented and articulated armor to bioinspired surfaces and applications requires new computational constructs. We propose a novel hierarchical computational model, MetaMesh, that adapts a segmented fish scale armor system to fit complex “host surfaces”. We define a “host” surface as the overall geometrical form on top of which the scale units are computed. MetaMesh operates in three levels of resolution: (i) locally—to construct unit geometries based on shape parameters of scales as identified and characterized in the Polypterus senegalus exoskeleton, (ii) regionally—to encode articulated connection guides that adapt units with their neighbors according to directional schema in the mesh, and (iii) globally—to generatively extend the unit assembly over arbitrarily curved surfaces through global mesh optimization using a functional coefficient gradient. Simulation results provide the basis for further physiological and kinetic development. This study provides a methodology for the generation of biomimetic protective surfaces using segmented, articulated components that maintain mobility alongside full body coverage.
MIT Department
Massachusetts Institute of Technology. Department of Architecture
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Massachusetts Institute of Technology. Department of Mechanical Engineering
Massachusetts Institute of Technology. Media Laboratory
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Creative Commons Attribution-NonCommercial-NoDerivs License
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DOI of Published Version
https://doi.org/10.1016/j.cad.2014.05.005
