| نویسندگان | علی قربانپور-محمد عبدالهیان-زهرا خدامی مرقی |
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| تاریخ انتشار | 2014-6-01 |
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| نوع نشریه | الکترونیکی |
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| نمایه نشریه | ISI ,SCOPUS |
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چکیده مقاله
This paperinvestigatestheelectro-thermalnonlocalwavepropagationof fluid-conveyingsingle-walled
Boron Nitridenanotubes(SWBNNTs)usingnonlocalpiezoelasticitywithsurfacestress,initialstressand
Knudsen-dependent flowvelocityeffect.SWBNNTisembeddedinavicsoelasticmediumwhichis
simulated asvisco-Pasternakfoundation.UsingEuler–Bernoulli beam(EBB)model,Hamilton'sprinciple
and nonlocalpiezoelasticitytheory,thehigherordergoverningequationisderived.Adetailed
parametric studyisconducted,focusingonthecombinedeffectsoftheelectricparameters,viscoelastic
medium, initialstress,surfacestress,Knudsennumber(Kn) andsmallscaleonthewavepropagation
behaviourofthe fluid-conveyingSWBNNT.Theresultsshowthatforsmallervaluesofwavenumberthe
dispersion relationfordifferent fluid viscositiesseemstobesimilar.Atthehighervaluesofwave
numbers, increaseinthewavefrequencyvaluesisremarkableduetoincreasein fluid viscosity.The
electric field asasmartcontroller,surfaceeffect,initialstress,temperaturechangeandslipvelocity
effect havesignificant roleonthewavefrequency.Theresultsofthisworkishopedtobeofuseindesign
and manufacturingofsmartMEMS/NEMSinadvancedmedicalapplicationssuchasdrugdelivery
systemswithgreatapplicationsinbiomechanics.
