ArticleScientific reports2018
Microstructure and mechanical properties of hard Acrocomia mexicana fruit shell.
Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- Generative Design of 3D-Printed Biomimetic Interlocking Blocks Inspired by the Cellular 3D Puzzle Structure of the Walnut Shell.Biomimetics (Basel, Switzerland) · 2026Article
- Bio-inspired designs: leveraging biological brilliance in mechanical engineering-an overview.3 Biotech · 2024Review
- Fracture Resistance Biomechanisms of Walnut Shell with High-Strength and Toughening.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2023Article
- Cellulose-Hemicellulose-Lignin Interaction in the Secondary Cell Wall of Coconut Endocarp.Biomimetics (Basel, Switzerland) · 2023Article
- Advanced Composites Inspired by Biological Structures and Functions in Nature: Architecture Design, Strengthening Mechanisms, and Mechanical-Functional Responses.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2023Review
- The walnut shell network: 3D visualisation of symplastic and apoplastic transport routes in sclerenchyma tissue.Planta · 2022Article
- Elastic Moduli of Avian Eggshell.Biology · 2021Article
- Functional packaging of seeds.The New phytologist · 2021Review
- Hierarchical levels of organization of the Brazil nut mesocarp.Scientific reports · 2020Article
- Hierarchical Structure of theMolecules (Basel, Switzerland) · 2020Article
- The Puzzle of the Walnut Shell: A Novel Cell Type with Interlocked Packing.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2019Article
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Fruit and nut shells can exhibit high hardness and toughness. In the peninsula of Yucatan, Mexico, the fruit of the Cocoyol palm tree (Acrocomia mexicana) is well known to be very difficult to break. Its hardness has been documented since the 1500 s, and is even mentioned in the popular Maya legend The Dwarf of Uxmal. However, until now, no scientific studies quantifying the mechanical performance of the Cocoyol endocarp has been found in the literature to prove or disprove that this fruit shell is indeed "very hard". Here we report the mechanical properties, microstructure and hardness of this material. The mechanical measurements showed compressive strength values of up to ~150 and ~250 MPa under quasi-static and high strain rate loading conditions, respectively, and microhardness of up to ~0.36 GPa. Our findings reveal a complex hierarchical structure showing that the Cocoyol shell is a functionally graded material with distinctive layers along the radial directions. These findings demonstrate that structure-property relationships make this material hard and tough. The mechanical results and the microstructure presented herein encourage designing new types of bioinspired superior synthetic materials.
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