Toughening mechanisms in bioinspired multilayered materials
نویسندگان
چکیده
منابع مشابه
Toughening mechanisms in bioinspired multilayered materials.
Outstanding mechanical properties of biological multilayered materials are strongly influenced by nanoscale features in their structure. In this study, mechanical behaviour and toughening mechanisms of abalone nacre-inspired multilayered materials are explored. In nacre's structure, the organic matrix, pillars and the roughness of the aragonite platelets play important roles in its overall mech...
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Ultrastrong bioinspired graphene-based fibers are designed and prepared via synergistic toughening of ionic and covalent bonding. The tensile strength reaches up to 842.6 MPa and is superior to all other reported graphene-based fibers. In addition, its electrical conductivity is as high as 292.4 S cm(-1). This bioinspired synergistic toughening strategy supplies new insight toward the construct...
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Assuming that the energy dissipation decreases inversely with distance from the crack tip, the increase in steady-state toughness of a transformation-toughened ceramic is estimated to be AJ = (AJ,/w) In (1 + w), where (i) AJo denotes the toughness increment which would be expected for a given zone height h , assuming full transformation throughout the zone, and (ii) w is a nondimensional parame...
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Natural structural materials are built at ambient temperature from a fairly limited selection of components. They usually comprise hard and soft phases arranged in complex hierarchical architectures, with characteristic dimensions spanning from the nanoscale to the macroscale. The resulting materials are lightweight and often display unique combinations of strength and toughness, but have prove...
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T he use of biomaterials for implants or medical devices stretches back 35,000 years, when sutures were used to close large wounds. The Greeks and Chinese used gold in dental restorations 2,000 years ago. However, since World War II, all manner of materials have found use in implants or other medical devices, including ceramics such as alumina and hydroxyapatitite; various metals such as stainl...
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ژورنال
عنوان ژورنال: Journal of The Royal Society Interface
سال: 2015
ISSN: 1742-5689,1742-5662
DOI: 10.1098/rsif.2014.0855