Design strategies of the mantis shrimp spike: How the crustacean cuticle became a remarkable biological harpoon
Abstract Spearing mantis shrimps are aggressive crustaceans using specialized appendages with sharp spikes to capture fishes with fast movement. Each spike is a biological tool that has to combine high toughness, as required by the initial impact with the victim, with high stiffness and strength, to...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley-VCH
2023-07-01
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| Series: | Natural Sciences |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/ntls.20220060 |
| _version_ | 1797786753477640192 |
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| author | Yann Delaunois Alexandra Tits Quentin Grossman Sarah Smeets Cédric Malherbe Gauthier Eppe G. Harry vanLenthe Davide Ruffoni Philippe Compère |
| author_facet | Yann Delaunois Alexandra Tits Quentin Grossman Sarah Smeets Cédric Malherbe Gauthier Eppe G. Harry vanLenthe Davide Ruffoni Philippe Compère |
| author_sort | Yann Delaunois |
| collection | DOAJ |
| description | Abstract Spearing mantis shrimps are aggressive crustaceans using specialized appendages with sharp spikes to capture fishes with fast movement. Each spike is a biological tool that has to combine high toughness, as required by the initial impact with the victim, with high stiffness and strength, to ensure sufficient penetration while avoid breaking. We performed a multimodal analysis to uncover the design strategies of this harpoon based on chitin. We found that the spike is a slightly hooked hollow beam with the outer surface decorated by serrations and grooves to enhance cutting and interlocking. The cuticle of the spike resembles a multilayer composite: An outer heavily mineralized, stiff, and hard region (with average indentation modulus and hardness of 68 and 3 GPa), providing high resistance to contact stresses, is combined with a less mineralized region, which occupies a large fraction of the cuticle (up to 50%) and features parallel fibers oriented longitudinally, enhancing stiffness and strength. A central finding of our work is the presence of a tiny interphase (less than 10 μm in width) based on helical fibers and showing a spatial modulation in mechanical properties, which has the critical task to integrate the stiff but brittle outer layer with the more compliant highly anisotropic parallel‐fiber region. We highlighted the remarkable ability of this helicoidal region to stop nanoindentation‐induced cracks. Using three‐dimensional multimaterial printing to prototype spike‐inspired composites, we showed how the observed construction principles can not only hamper damage propagation between highly dissimilar layers (resulting in composites with the helical interphase absorbing 50% more energy than without it) but can also enhance resistance to puncture (25% increase in the force required to penetrate the composites with a blunt tool). Such findings may provide guidelines to design lightweight harpoons relying on environmentally friendly and recyclable building blocks. Key Points –The heavily mineralized biological appendages of the mantis shrimp are a constant source of inspiration for developing new engineering materials. –We use characterization methods of material science to investigate a biological harpoon based on chitin. –Several morphological, compositional, microstructural, and biomechanical features are highlighted, allowing the spikes of the mantis shrimp to be remarkable lightweight, tough, and stiff harpoons. |
| first_indexed | 2024-03-13T01:12:21Z |
| format | Article |
| id | doaj.art-1770541bafc04e7cbc87c2d8788819c1 |
| institution | Directory Open Access Journal |
| issn | 2698-6248 |
| language | English |
| last_indexed | 2024-03-13T01:12:21Z |
| publishDate | 2023-07-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Natural Sciences |
| spelling | doaj.art-1770541bafc04e7cbc87c2d8788819c12023-07-05T16:05:48ZengWiley-VCHNatural Sciences2698-62482023-07-0133n/an/a10.1002/ntls.20220060Design strategies of the mantis shrimp spike: How the crustacean cuticle became a remarkable biological harpoonYann Delaunois0Alexandra Tits1Quentin Grossman2Sarah Smeets3Cédric Malherbe4Gauthier Eppe5G. Harry vanLenthe6Davide Ruffoni7Philippe Compère8Laboratory of Functional and Evolutionary Morphology FOCUS Research Unit, Department of Biology, Ecology and Evolution, University of Liège Liège BelgiumMechanics of Biological and Bioinspired Materials Laboratory Department of Aerospace and Mechanical Engineering, University of Liège Liège BelgiumMechanics of Biological and Bioinspired Materials Laboratory Department of Aerospace and Mechanical Engineering, University of Liège Liège BelgiumLaboratory of Functional and Evolutionary Morphology FOCUS Research Unit, Department of Biology, Ecology and Evolution, University of Liège Liège BelgiumMass Spectrometry Laboratory MolSys Research Unit, Department of Chemistry, University of Liège Liège BelgiumMass Spectrometry Laboratory MolSys Research Unit, Department of Chemistry, University of Liège Liège BelgiumDepartment of Mechanical Engineering KU Leuven Leuven BelgiumMechanics of Biological and Bioinspired Materials Laboratory Department of Aerospace and Mechanical Engineering, University of Liège Liège BelgiumLaboratory of Functional and Evolutionary Morphology FOCUS Research Unit, Department of Biology, Ecology and Evolution, University of Liège Liège BelgiumAbstract Spearing mantis shrimps are aggressive crustaceans using specialized appendages with sharp spikes to capture fishes with fast movement. Each spike is a biological tool that has to combine high toughness, as required by the initial impact with the victim, with high stiffness and strength, to ensure sufficient penetration while avoid breaking. We performed a multimodal analysis to uncover the design strategies of this harpoon based on chitin. We found that the spike is a slightly hooked hollow beam with the outer surface decorated by serrations and grooves to enhance cutting and interlocking. The cuticle of the spike resembles a multilayer composite: An outer heavily mineralized, stiff, and hard region (with average indentation modulus and hardness of 68 and 3 GPa), providing high resistance to contact stresses, is combined with a less mineralized region, which occupies a large fraction of the cuticle (up to 50%) and features parallel fibers oriented longitudinally, enhancing stiffness and strength. A central finding of our work is the presence of a tiny interphase (less than 10 μm in width) based on helical fibers and showing a spatial modulation in mechanical properties, which has the critical task to integrate the stiff but brittle outer layer with the more compliant highly anisotropic parallel‐fiber region. We highlighted the remarkable ability of this helicoidal region to stop nanoindentation‐induced cracks. Using three‐dimensional multimaterial printing to prototype spike‐inspired composites, we showed how the observed construction principles can not only hamper damage propagation between highly dissimilar layers (resulting in composites with the helical interphase absorbing 50% more energy than without it) but can also enhance resistance to puncture (25% increase in the force required to penetrate the composites with a blunt tool). Such findings may provide guidelines to design lightweight harpoons relying on environmentally friendly and recyclable building blocks. Key Points –The heavily mineralized biological appendages of the mantis shrimp are a constant source of inspiration for developing new engineering materials. –We use characterization methods of material science to investigate a biological harpoon based on chitin. –Several morphological, compositional, microstructural, and biomechanical features are highlighted, allowing the spikes of the mantis shrimp to be remarkable lightweight, tough, and stiff harpoons.https://doi.org/10.1002/ntls.20220060biocompositecrustaceanharpoonhigh stiffness and toughnessstomatopodspike |
| spellingShingle | Yann Delaunois Alexandra Tits Quentin Grossman Sarah Smeets Cédric Malherbe Gauthier Eppe G. Harry vanLenthe Davide Ruffoni Philippe Compère Design strategies of the mantis shrimp spike: How the crustacean cuticle became a remarkable biological harpoon Natural Sciences biocomposite crustacean harpoon high stiffness and toughness stomatopod spike |
| title | Design strategies of the mantis shrimp spike: How the crustacean cuticle became a remarkable biological harpoon |
| title_full | Design strategies of the mantis shrimp spike: How the crustacean cuticle became a remarkable biological harpoon |
| title_fullStr | Design strategies of the mantis shrimp spike: How the crustacean cuticle became a remarkable biological harpoon |
| title_full_unstemmed | Design strategies of the mantis shrimp spike: How the crustacean cuticle became a remarkable biological harpoon |
| title_short | Design strategies of the mantis shrimp spike: How the crustacean cuticle became a remarkable biological harpoon |
| title_sort | design strategies of the mantis shrimp spike how the crustacean cuticle became a remarkable biological harpoon |
| topic | biocomposite crustacean harpoon high stiffness and toughness stomatopod spike |
| url | https://doi.org/10.1002/ntls.20220060 |
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