What is Reaction Force? - Definition from Corrosionpedia

A reaction force is a force that acts in the opposite direction to an action force. Friction is the reaction force resulting from surface ... Dictionary Dictionary TermoftheDay RutheniumOxide Themostcommontypeofrutheniumoxide,ruthenium(IV)oxide,isaninorganiccompoundintheformofablackcoloredsolidcrystal.Thisoxideiswidelyusedasanoxygencatalystintheproductionofchlorineandchlorineoxides.Therearetwotypesofrutheniumoxide:Ruthenium(IV)oxidehaving... 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Byclickingsignup,youagreetoreceiveemailsfromCorrosionpediaandagreetoourTermsofUseandPrivacyPolicy. More About AdvertisingInfo Contributors Newsletters WriteforUs Contact Connectwithus SubscribeToOurNewsletters Signup Byclickingsignup,youagreetoreceiveemailsfromCorrosionpediaandagreetoourTermsofUseandPrivacyPolicy. Advertisement Dictionary Corrosion ReactionForce ReactionForce Lastupdated:August31,2017 WhatDoesReactionForceMean? Areactionforceisaforcethatactsintheoppositedirectiontoanactionforce.Frictionisthereactionforceresultingfromsurfaceinteractionandadhesionduringsliding.Reactionforcesandreactionmomentareusuallytheresultoftheactionsofappliedforces.Whenreactionforcesexceedactionforces,structurefailurecanoccurandmayleadtofractureaswellascorrosion. Advertisement CorrosionpediaExplainsReactionForce Areactionforceistheforceappliedtoastructurewhenitrestsagainstsomething.Inanalyzingabeamstructure,itinvolvescalculatingwhatthereactionforcesareatthesupportsduetotheforcesactingonthebeam.Afreebodydiagramoftheentirebeamcanbeusedtodeterminethereactionforces.Thebeamhasverticalandhorizontalreactionforcesaswellasareactionmoment.Thehorizontalreactionforceiszeroaslongastherearenohorizontalappliedforces.Acantileverbeamwithasinglesupporthasareactionforceandareactionmoment.Thereactionforceequalsthesumoftheappliedforcesonthebeam.Ifthebeamsitsonarollerthatallowsthebeamtomovefreelyhorizontally,itssupporthasonlyaverticalreactionforce.Whenputundercompression(oranyothertypeofstress),everymaterialsufferssomedeformation,evenifimperceptible,thatcausestheaveragerelativepositionsofitsatomsandmoleculestochange.Thedeformationmaybepermanent,ormaybereversedwhenthecompressionforcesdisappear.Inthelattercase,thedeformationgivesrisetoreactionforcesthatopposethecompressionforces,andmayeventuallybalancethem.Liquidsandgasescannotbearsteadyuniaxialorbiaxialcompression—theydeformpromptlyandpermanentlyanddonotofferanypermanentreactionforce. Reactionforcescancausecorrosion,forexample,bearings'reactionforcesincreaseswithdecreasingthebearingclearancesfrom350mmto150mmduetoincreasedstiffnessofthesystem.Thereactionforcesarecorrelatedtothecompressionofthedifferentcoreofbearingmaterials.Itcancausedamagesofcoresanddelaminationsoffacesheets. Advertisement SharethisTerm RelatedTerms CompressionForce ShearForce ShearStrength Delamination TensileStrength MinimumClosureForce RelatedReading CorrosionAssessment:8CorrosionTestsThatHelpEngineersMitigateCorrosion WhatCausesStressCorrosionCrackingInPipelines? 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