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contributor authorLorenza Petrini
contributor authorFrancesco Migliavacca
contributor authorPaolo Massarotti
contributor authorSilvia Schievano
contributor authorGabriele Dubini
contributor authorFerdinando Auricchio
date accessioned2017-05-09T00:15:21Z
date available2017-05-09T00:15:21Z
date copyrightAugust, 2005
date issued2005
identifier issn0148-0731
identifier otherJBENDY-26519#716_1.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/131372
description abstractBackground: Nowadays, shape memory alloys (SMAs) and in particular Ni–Ti alloys are commonly used in bioengineering applications as they join important qualities as resistance to corrosion, biocompatibility, fatigue resistance, MR compatibility, kink resistance with two unique thermo-mechanical behaviors: the shape memory effect and the pseudoelastic effect. They allow Ni–Ti devices to undergo large mechanically induced deformations and then to recover the original shape by thermal loading or simply by mechanical unloading. Method of approach: A numerical model is developed to catch the most significant SMA macroscopic thermo-mechanical properties and is implemented into a commercial finite element code to simulate the behavior of biomedical devices. Results: The comparison between experimental and numerical response of an intravascular coronary stent allows to verify the model suitability to describe pseudo-elasticity. The numerical study of a spinal vertebrae spacer, where the effects of different geometries and material characteristic temperatures are investigated, allows to verify the model suitability to describe shape memory effect. Conclusion: the results presented show the importance of computational studies in designing and optimizing new biomedical devices.
publisherThe American Society of Mechanical Engineers (ASME)
titleComputational Studies of Shape Memory Alloy Behavior in Biomedical Applications
typeJournal Paper
journal volume127
journal issue4
journal titleJournal of Biomechanical Engineering
identifier doi10.1115/1.1934203
journal fristpage716
journal lastpage725
identifier eissn1528-8951
keywordsDeformation
keywordsTemperature
keywordsComputer simulation
keywordsShape memory alloys
keywordsStress
keywordsShape memory effects
keywordsShapes
keywordsstents
keywordsBiomedicine
keywordsElasticity
keywordsDesign
keywordsNickel titanium alloys AND Displacement
treeJournal of Biomechanical Engineering:;2005:;volume( 127 ):;issue: 004
contenttypeFulltext


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