Results 131 to 140 of about 1,600 (183)
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Bending of Beams in Superelasticity Domain
ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, 2000AbstractThe paper deals with bending of beams made of shape memory material (SMM). The research is focused on the modelling of a bending process in the superelasticity region, which w one of the characteristics of SMM. On the basis of a chosen physical model, a computer program has been set up for numerical modelling of the stress‐strain and ...
Kosel, Franc, Bundara, Borut
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Superelastic Polymer Aerogel with Superamphiphilicity
ACS Applied Materials & InterfacesElastic aerogels have become a research hot spot in both academia and industry recently. The reported elastic aerogels are all made of hard materials by controlling their shapes. Herein we report an elastic aerogel made of a polymer elastomer with entropy elasticity. In the aerogel, cross-linked carboxyl nitrile rubber nanoparticles with hydrophilicity
Guoyu Wang +13 more
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Superelastic Nickel-titanium Wires
British Journal of Orthodontics, 1992Superelastic nickel-titanium archwires, unlike conventional wires, are capable of withstanding very large deflections and on returning to their original shape on deactivation will produce more moderate forces. The region over which there is a 'plateau' depends on the deflection and is greater the larger the deflection.
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Network Modulus and Superelasticity
Macromolecules, 1994We discuss the elastic modulus G and swelling/deswelling behavior of networks as a function of their concentration 4 and their preparation state. Simple scaling ideas reproduce the prediction of James and Guth for the modulus of networks swollen in a 8 solvent (G - 4113) but lead to a new prediction in a good solvent (G - 4'/12).
Sergei P. Obukhov +2 more
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Superelastic Hard Carbon Nanofiber Aerogels
Advanced Materials, 2019AbstractSuperelastic carbon aerogels have been widely explored by graphitic carbons and soft carbons. These soft aerogels usually have delicate microstructures with good fatigue resistance but ultralow strength. Hard carbon aerogels show great advantages in mechanical strength and structural stability due to the sp3‐C‐induced turbostratic “house‐of ...
Zhi‐Long Yu +9 more
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Superelastic Effect in Polycrystalline Ferrous Alloys
Science, 2011A superelastic alloy formed from common elements operates over a wide temperature window.
T, Omori +7 more
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A Superelastic Helicotome for Capsulorhexis
2019We design and characterize a novel, single-use device to perform capsulorhexis, a critical step during cataract surgery, during which a 5-mm-diameter incision is made in the anterior lens capsule. This device, the Helicotome, is a hand-held tool based on a superelastic shape-memory-alloy blade to perform the circular incision in the lens capsule.
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Superelastic softening in perovskites
Physical Review B, 2011Contrary to high frequency (MHz-GHz) elastic data, at low frequencies (0.1-50 Hz) huge elastic softening (superelasticity) is usually found in the low symmetry improper ferroelastic phases (i.e., tetragonal or rhombohedral) of perovskite structured materials including SrTiO3, KMn1-xCaxF3, and LaAlO3.
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A superelastic helicotome for capsulorhexis
2018We design and characterize a novel, single-use device to perform capsulorhexis, a critical step during cataract surgery, during which a 5 mm diameter incision is made in the anterior lens capsule. This device, the Helicotome, is a handheld tool based on a superelastic shape-memory-alloy blade to perform the circular incision in the lens capsule.
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Micropolar elastic percolation: The superelastic problem
Physical Review B, 1988This paper deals with the critical elastic behavior of a two-dimensional micropolar (or "granular") network with randomly rigid or elastic bonds. It presents a new derivation of Feng's inequalities $1l{s}^{\ensuremath{'}}ls$ in the context of micropolar elasticity (where $s$ is the conductivity exponent, ${s}^{\ensuremath{'}}$ the elastic-moduli ...
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