Three-dimensional structure of the shell plate assembly of the chiton Tonicella marmorea and its biomechanical consequences

Connors, Matthew J.; Ehrlich, Hermann; Hog, Martin; Godeffroy, Clemence; Araya, Sergio Enrique Del Campo; Kallai, Ilan; Gazit, Dan; Boyce, Mary C.; Ortiz, Christine

doi:10.1016/j.jsb.2011.12.019

Cited by 80 publications

(54 citation statements)

References 39 publications

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“…12a shows photographs of the valves and of the animal curled up. From the dorsal to ventral surfaces, six layers in mid-section valves were identified that have granular, prismatic or crossed-lamellar microstructures of aragonite crystals [113]. The interconnection between the valves was described as an actuating sandwich structure consisting of two valves separated by compliant muscles that operate to provide motion [113].…”

Section: Mollusk Shellsmentioning

confidence: 99%

“…From the dorsal to ventral surfaces, six layers in mid-section valves were identified that have granular, prismatic or crossed-lamellar microstructures of aragonite crystals [113]. The interconnection between the valves was described as an actuating sandwich structure consisting of two valves separated by compliant muscles that operate to provide motion [113]. Of additional interest, the chiton Cryptochiton stelleri has adapted to produce extremely hard and wear-resistant teeth of Fe 3 O 4 and α-chitin to scrape algae off of rocks (Fig.…”

Section: Mollusk Shellsmentioning

confidence: 99%

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Structure and mechanical properties of selected protective systems in marine organisms

Naleway

Taylor

Porter

et al. 2016

Materials Science and Engineering: C

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Section: Mollusk Shellsmentioning

confidence: 99%

Section: Mollusk Shellsmentioning

confidence: 99%

Structure and mechanical properties of selected protective systems in marine organisms

Naleway

Taylor

Porter

et al. 2016

Materials Science and Engineering: C

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“…The study of biological armor systems is an emerging field [3][4][5][6][7] with recent initial development of structural (load-bearing) bioinspired armor materials, most often nacre-mimetic [8]. However, the design and manufacture of a bioinspired exoskeleton including salient local-regional-global hierarchical features have yet to be realized.…”

Section: Introductionmentioning

confidence: 99%

MetaMesh: A hierarchical computational model for design and fabrication of biomimetic armored surfaces

Duro-Royo

Zolotovsky

Mogas-Soldevila

et al. 2015

Computer-Aided Design

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KEYWORDSBiomimetics, bio-inspired design, computational design, hierarchical computation, adaptation, mesh data structure, multi-functional, natural exoskeletons HIGHLIGHTS• MetaMesh is a hierarchical computational construct to generate articulated armored surfaces • The ancient armored fish Polypterus senegalus provides source of bio-inspiration • Local, regional and global levels of organization embed functional differentiation • Articulation of scale units is preserved by neighborhood morphing techniques • The model is adaptable to a wide array of complex hosting surfaces GRAPHICAL ABSTRACT ABSTRACTMany 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 nacremimetic 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. 2 INTRODUCTIONStructural materials in nature achieve diverse functions such as toughness, flexibility and strength, through spatial variation in material properties and morphometry across organizational hierarchies with precise interfacial control [1][2]. Biologically inspired engineering, or the translation of design schema in nature, being chemical, physical, genetic, or geometric, to synthetic systems requires complex models that both capture the intricacies of biological models and adapt their multi-scale design principles to new operative constraints. The process of mapping functional requirements between design solutions presents several theoretical and technical challenges to ensure continuity and coherence of all components. With the advent of high resolution materials characterization methods, powerful computational simulation capabilities, and increasingly precise digital ...

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“…Since the early studies on biomineralization carried out by Lowenstam et al [20], chitons have attracted attention in the material science community [21]- [26]. Nature has provided this species of the phylum Mollusca [27] a flexible dorsal shell that covers and protects from predatory attacks [28] and a mineralized radula, or ribbon-like structure of teeth, with outstanding abrasion resistance. Compared to other biological materials, the external iron oxide layer of a chiton tooth has been characterized by depth-sensing techniques with the highest resistance to inelastic deformation known today [11], [24].…”

Section: Introductionmentioning

confidence: 99%

Analysis of the mechanical response of biomimetic materials with highly oriented microstructures through 3D printing, mechanical testing and modeling

Obaldia

Jeong

Grunenfelder

et al. 2015

Journal of the Mechanical Behavior of Biomedical Materials

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Three-dimensional structure of the shell plate assembly of the chiton Tonicella marmorea and its biomechanical consequences

Cited by 80 publications

References 39 publications

Structure and mechanical properties of selected protective systems in marine organisms

Structure and mechanical properties of selected protective systems in marine organisms

MetaMesh: A hierarchical computational model for design and fabrication of biomimetic armored surfaces

Analysis of the mechanical response of biomimetic materials with highly oriented microstructures through 3D printing, mechanical testing and modeling

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