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The mechanics of three-dimensional cellular materials
Lorna J. Gibson,Michael F. Ashby +1 more
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In this paper, the mechanical properties of two-dimensional cellular materials, or honeycombs, are analyzed and compared with experiments, in terms of bending, elastic buckling and plastic collapse of the beams that make up the cell walls.Abstract:
The mechanical properties (linear and nonlinear elastic and plastic) of two-dimensional cellular materials, or honeycombs, are analysed and compared with experiments. The properties are well described in terms of the bending, elastic buckling and plastic collapse of the beams that make up the cell walls.read more
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Ultralight Metallic Microlattices
Tobias A. Schaedler,Alan J. Jacobsen,Anna Torrents,Adam E. Sorensen,Jie Lian,Julia R. Greer,Lorenzo Valdevit,William B. Carter +7 more
TL;DR: A route is developed for fabricating extremely low-density, hollow-strut metallic lattices that exhibit complete recovery after compression exceeding 50% strain, and energy absorption similar to elastomers and attribute these properties to structural hierarchy at the nanometer, micrometer, and millimeter scales.
Journal ArticleDOI
The mechanical properties of cellular solids
TL;DR: The mechanical properties (elastic, plastic, creep, and fracture) of cellular solids or foams are related to the properties of the cell wall material and to the cell geometry.
Journal ArticleDOI
The mechanical behaviour of cancellous bone
TL;DR: The results of this previous study are applied to cancellous bone in an attempt to further understand its mechanical behaviour and the results agree reasonably well with experimental data available in the literature.
Journal ArticleDOI
Biomechanics of cellular solids.
TL;DR: The mechanics of a wide range of natural cellular materials and their role in lightweight natural sandwich structures and natural tubular structures are examined, as well as two examples of engineered biomaterials with a cellular structure, designed to replace or regenerate tissue in the body.
Journal ArticleDOI
The effect of porosity and mineral content on the Young's modulus of elasticity of compact bone.
TL;DR: The Young's modulus of elasticity, the calcium content and the volume fraction (1-porosity) of 23 tension specimens and 80 bending specimens, taken from compact bone of 18 species of mammal, bird and reptile, were determined.
References
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Journal ArticleDOI
Deformations of Foamed Elastomers
TL;DR: In this paper, the elastic constants of two types of closest packing of uniform spheres, 1) hexagonal closest packing, 2) face centered cubic closest packing are studied, and the structures of interstices of these two types are used to represent those of the actual foamed elastomers.
Journal ArticleDOI
Estimation of mechanical properties for rigid polyurethane foams
G. Menges,F. Knipschild +1 more
TL;DR: In this article, an equation for the mechanical behavior of polyurethane foams as a function of foam density is provided, starting from a model conception and the qualitative microscopic consideration of the deformation and failure mechanism, simple relations are found for the tensile, compressive and shear strength and the elastic modulus.
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Physical Properties of Rigid Polyurethane Foams
TL;DR: In this paper, a summary of the data obtained on two rigid foam systems is presented, based on polyester resins with either a TDI or polyarylpolyisocyanate (PAPI).
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The Deformational Behaviour of Foamed Thermoplastics
TL;DR: In this article, a new injection molding process which sandwiched a foamed polymer between solid polymer skins was proposed, which resulted in a greater stiffness in flexure per unit weight, although the quantitative details were not available.