BS EN ISO 6603-1-2000 Plastics - Determination of multi-axial impact behaviour of rigid plastics - Non-instrumented impact testing《塑料 硬质塑料复合轴向冲击性能的测定 非仪器冲击试验》.pdf

1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN ISO 6603-1:2000 The

2、 European Standard EN ISO 6603-1:2000 has the status of a British Standard ICS 83.080.01 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Plastics Determination of puncture impact behaviour of rigid plastics Part 1: Non-instrumented impact testingThis British Standard, having b

3、een prepared under the direction of the Sector Committee for Materials and Chemicals, was published under the authority of the Standards Committee and comes into effect on 15 June 2000 BSI 06-2000 ISBN 0 580 34615 3 BS EN ISO 6603-1:2000 Amendments issued since publication Amd. No. Date Comments Nat

4、ional foreword This British Standard is the official English language version of EN ISO 6603-1:2000. It is identical with ISO 6603-1:2000. It supersedes BS EN ISO 6603-1:1997 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee PRI/21, Testing of plastics,

5、 which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate

6、 them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international publications with their corre

7、sponding European publications. The British Standards which implement these international or European publications may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Ca

8、talogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document c

9、omprises a front cover, an inside front cover, the EN ISO title page, the EN ISO foreword page, the ISO title page, pages ii to iv, pages 1 to 21, the annex ZA page, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued

10、.Referencenumber ISO6603-1:2000(E) INTERNATIONAL STANDARD ISO 6603-1 Secondedition 2000-03-01 PlasticsDeterminationofpuncture impactbehaviourofrigidplastics Part1: Non-instrumentedimpacttesting Plastiques Dtermination du comportement des plastiques rigides perfors sous leffet dun choc Partie 1: Essa

11、is de choc non instrumentsISO6603-1:2000(E) PrintedinSwitzerland ii ISO6603-1:2000(E)iii Contents Page Foreword.iv 1 Scope1 2 Normativereferences2 3 Termsanddefinitions.3 4 Principle5 5 Apparatus.6 6 Testspecimens9 7 Procedure.10 8 Precision.16 9 Testreport16 AnnexA(informative)Examplesofcalculation

12、s.19ISO6603-1:2000(E) iv Foreword ISO(theInternationalOrganizationforStandardization)isaworldwidefederationofnationalstandardsbodies(ISO memberbodies).TheworkofpreparingInternationalStandardsisnormallycarriedoutthroughISOtechnical committees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommit

13、teehasbeenestablishedhas therighttoberepresentedonthatcommittee.Internationalorganizations,governmentalandnon-governmental,in liaisonwithISO,alsotakepartinthework.ISOcollaboratescloselywiththeInternationalElectrotechnical Commission(IEC)onallmattersofelectrotechnicalstandardization. InternationalSta

14、ndardsaredraftedinaccordancewiththerulesgivenintheISO/IECDirectives,Part3. DraftInternationalStandardsadoptedbythetechnicalcommitteesarecirculatedtothememberbodiesforvoting. PublicationasanInternationalStandardrequiresapprovalbyatleast75%ofthememberbodiescastingavote. Attentionisdrawntothepossibilit

15、ythatsomeoftheelementsofthispartofISO6603maybethesubjectofpatent rights.ISOshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights. InternationalStandardISO6603-1waspreparedbyTechnicalCommitteeISO/TC61, Plastics, Subcommittee SC2, Mechanical properties. Thissecondeditioncancelsandreplacesthe

16、firstedition(ISO6603-1:1985),whichhasbeentechnicallyrevised. ISO6603consistsofthefollowingparts,underthegeneraltitle Plastics Determination of puncture impact behaviour of rigid plastics: Part 1: Non-instrumented impact testing Part 2: Instrumented impact testing AnnexAofthispartofISO6603isforinform

17、ationonly.INTERNATIONALSTANDADR ISO-30661:(0002)E1 PlasticsDeterminationofpunctureimpactbehaviourofrigid plastics Part1: Non-instrumentedimpacttesting 1 Scope ThisInternationalStandardspecifiesmethodsforthedeterminationofpuncture-impactpropertiesofrigidplasticsin theformofflattestspecimens,suchasdis

18、csorsquarepieces,underdefinedconditions.Specimensmaybe mouldeddirectly,cutfromsheetsortakenfromfinishedproducts.Differenttypesoftestspecimensandtest conditionsaredefined. Thesefalling-dartmethodsareusedtoinvestigatethebehaviourofplasticsheetingormouldingsundertheimpact ofastrikerappliedperpendicular

19、totheplaneofthespecimen. ThispartofISO6603canbeusedifitissufficienttocharacterizetheimpactbehaviourofplasticsbyathreshold valueofimpact-failureenergybasedonmanytestspecimens.ISO6603-2isusedifaforce-deflectionorforce-time diagram,recordedatnominallyconstantstrikervelocity,isnecessaryfordetailedcharac

20、terizationoftheimpact behaviour. Thesetestmethodsareapplicabletospecimenswithathicknessbetween1mmand4mm. NOTE Forthicknesseslessthan1mm,ISO7765shouldpreferablybeused.Thicknessesgreaterthan4mmmaybe testediftheequipmentissuitable,butthetestfallsoutsidethescopeofISO6603-1andISO6603-2. Thesemethodsaresu

21、itableforusewiththefollowingtypesofmaterial: rigidthermoplasticmouldingandextrusionmaterials,includingfilled,unfilledandreinforcedcompoundsand sheets; rigidthermosettingmouldingandextrusionmaterials,includingfilledandreinforcedcompounds,sheetsand laminates; fibre-reinforcedthermosetandthermoplasticc

22、ompositesincorporatingunidirectionalornon-unidirectional reinforcementssuchasmats,wovenfabrics,wovenrovings,choppedstrands,combinationandhybrid reinforcements,rovings,milledfibresandsheetsmadefrompre-impregnatedmaterials(prepregs). Thesemethodsarealsoapplicabletospecimenswhichareeithermouldedormachi

23、nedfromfinishedproducts, laminatesandextrudedorcastsheet. Thetestresultsarecomparableonlyiftheconditionsofpreparationofthespecimens,theirdimensionsand surfacesaswellasthetestconditionsarethesame.Inparticular,resultsdeterminedonspecimensofdifferent thicknesscannotbecomparedwithoneanother(seeannexEofI

24、SO6603-2:).Comprehensiveevaluationofthe reactiontoimpactstressrequiresthatdeterminationsbemadeasafunctionofimpactvelocityandtemperaturefor differentmaterialvariables,suchascrystallinityandmoisturecontent. Theimpactbehaviouroffinishedproductscannotbepredicteddirectlyfromthistest,butspecimensmaybetake

25、n fromfinishedproducts(seeabove)fortestbythesemethods. EN ISO 6603-1:2000ISO-30661:(0002)E 2 Testdatadevelopedbythesemethodsshouldnotbeusedfordesigncalculations.However,informationonthe typicalbehaviourofthematerialcanbeobtainedbytestingatdifferenttemperaturesandimpactvelocities(see annexDofISO6603-

26、2:),byvaryingthethickness(seeannexEofISO6603-2:)andbytestingspecimens preparedunderdifferentconditions. TwostatisticalmethodsoftestaredescribedinthispartofISO6603: MethodA:staircasemethod(individual)(preferred) Inthismethod,auniformenergyincrementisemployedduringtesting.Theenergyisdecreasedorincreas

27、ed bytheuniformincrementaftertestingeachspecimen,dependingupontheobservedresult(passorfail)forthe precedingtest. MethodB:groupmethod(optional) Inthismethod,successivegroupsofatleasttentestspecimensaretested.Theimpactfailureenergyis calculatedbystatistics. 2 Normativereferences Thefollowingnormatived

28、ocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsof thispartofISO6603.Fordatedreferences,subsequentamendmentsto,orrevisionsof,anyofthesepublications donotapply.However,partiestoagreementsbasedonthispartofISO6603areencouragedtoinvestigatethe possibilityofapplyingthemostre

29、centeditionsofthenormativedocumentsindicatedbelow.Forundated references,thelatesteditionofthenormativedocumentreferredtoapplies.MembersofISOandIECmaintain registersofcurrentlyvalidInternationalStandards. ISO291:1997, Plastics Standard atmospheres for conditioning and testing. ISO293:1986, Plastics C

30、ompression moulding test specimens of thermoplastic materials. ISO294-3:1996, Plastics Injection moulding of test specimens of thermoplastic materials Part 3: Small plates. ISO295:1991, Plastics Compression moulding of test specimens of thermosetting materials. ISO1268:1974 1) , Plastics Preparation

31、 of glass fibre reinforced, resin bonded, low-pressure laminated plates or panels for test purposes. ISO2818:1994, Plastics Preparation of test specimens by machining. ISO6603-2: 2 , Plastics Determination of puncture impact behaviour of rigid plastics Part 2: Instrumented impact testing. ISO7765-1:

32、1988, Plastics film and sheeting Determination of impact resistance by the free-falling dart method Part 1: Staircase methods. ISO7765-2:1994, Plastics film and sheeting Determination of impact resistance by the free-falling dart method Part 2: Instrumented puncture test. 1)Underrevision. 2 Tobepubl

33、ished(RevisionofISO6603-2:1989) EN ISO 6603-1:2000ISO-30661:(0002)E3 3 Termsanddefinitions ForthepurposesofthispartofISO6603,thefollowingtermsanddefinitionsapply: 3.1 General 3.1.1 failure anybreakinthesurfaceofthespecimenwhichisvisibletothenakedeye 3.2 Failure-criteriaterms 3.2.1 crack anyfissureth

34、atcanbeobservedbythenakedeyeandthatdoesnotpenetratethefullthicknessofthematerial (seeFigure1) 3.2.2 break anyfissurethroughthefullthicknessofthematerial(seeFigure2) 3.2.3 penetration failureinwhichthestrikerpenetratesthroughthewholethicknessofthetestspecimenseeFigure3b) 3.2.4 shattering breakingofth

35、etestspecimenintotwoormorepiecesseeFigure3a) 3.3 Impact-failureterms 3.3.1 50%impact-failureenergy E 50 theenergythatwillcause50%ofthetestspecimenstofailasdefinedin3.1.1 3.3.2 50%impact-failuremass M 50 themassthatwillcause50%ofthetestspecimenstofail,asdefinedin3.1.1,foragivenheightoffall 3.3.3 50%i

36、mpact-failureheight H 50 theheightthatwillcause50%ofthetestspecimenstofail,asdefinedin3.1.1,usingagivenfallingmass EN ISO 6603-1:2000ISO-30661:(0002)E 4 Viewsofspecimensurfacesdamagedbya“crack”(examples) Key 1 Impactdirection Figure1Sectionsthroughspecimensdamagedbya“crack” b)andc)afterbendingbyhand

37、 Key 1 Impactdirection Figure2Sectionsthroughspecimensdamagedbya“break” b)andc)afterbendingbyhand EN ISO 6603-1:2000ISO-30661:(0002)E5 Key 1 Specimen 2 Dartwithhemisphericalhead Figure3Exampleof“shattering”failure a) and“penetration” b) 4Principle Theimpactstrengthofsuitablysizedtestspecimensisdeter

38、minedbystrikingthemwithalubricatedweighted strikerdroppedverticallyfromaknownheight.Thetestspecimenisimpactedatitscentrebyastriker, perpendiculartothesurfaceofthespecimen. Twomethodsofadjustingtheenergyatimpactarepermitted:alteringthemassatconstantheightandalteringthe heightatconstantmass. NOTE Thev

39、ariable-heightprocedureisvelocity-dependent,anddifferingresultsmaybeobserveddependinguponthe materialsstrainrate. Twostatisticalmethodsoftestaregiven: MethodA:staircasemethod(individual)(preferred). MethodB:groupmethod(optional). EN ISO 6603-1:2000ISO-30661:(0002)E 6 5 Apparatus 5.1 Testdevice 5.1.1

40、 Essentialcomponents Theessentialcomponentsofthetestdevice(seeFigure4)are: anenergycarrier(dartsystem),oftheinertial-masstype,whichincludes: weights, astriker(lubricationisrequired); aspecimensupport(seeFigure4),optionallywithaclampingdevice(Figure5). Thetestdeviceshallpermitthetestspecimentobepunct

41、uredatitscentre,perpendiculartothespecimensurface. Key 1 Testspecimen 2 Hemisphericalstrikertip 3 Testspecimensupport 4 Clampingring(optional) 5Base 6 Standforfalling-dartsystem 7 Holdingandreleasesystemforweightedstriker 8 Guideshaftforweightedstriker 9 Weightedstriker 10Acousticisolation(optional)

42、 Figure4Falling-dartsystem(example) EN ISO 6603-1:2000ISO-30661:(0002)E7 Key 1 Clampingring(optional) 2 Specimensupport Dimensionsinmillimetres Specimentype Squareofside60 Discofdiam.140 D 2 40 2 100 5 D 3 60 140 D 4 min.90 min.200 H 12 12 R 11 Figure5Schematicdrawingofclampingdevice(optional) 5.1.2

43、 Falling-dartsystem Thefalling-dartsystemshallbecapableofholdingandreleasingaweightedstrikersuchthatitwillfallconstrained byoneormoreguides.Thefallshallbenominallywithoutfrictionandlossesthroughwindage,ortheamountof frictionhastobetakenintoaccountinthecalculations. 5.1.3 Weights(masses) Appropriatew

44、eightsarerequiredthatcanbefirmlyattachedtothestriker.Thecombinedmassoftheattached weights,andthemassofthestriker,shallbeknowntowithin1%. 5.1.4 Striker Thepreferredstrikerhasapolishedhemisphericalstrikingsurfacewithadiameter20mm 0,2mm.Alternatively, a10mm 0,1mmdiameterstrikingsurfacemaybeused. NOTE T

45、hesize,dimensionsandconditionofthesurfaceofthestrikerwillaffecttheresults. Thepreferredstrikerisonemadeofanymaterialwithsufficientresistancetowearandofsufficientlyhighstrength topreventplasticdeformation.Inpractice,hardenedtoolsteelorsimilarmaterialwithahardnessof54HRChas beenfoundacceptable.Harderm

46、aterialsormaterialswithalowerdensity(forexampletitanium)withequivalent EN ISO 6603-1:2000ISO-30661:(0002)E 8 hardnessarealsoacceptable.Thehemisphericalsurfaceofthestrikershallbelubricatedtoreduceanyfriction betweenthestrikerandthetestspecimen(seeannexBofISO6603-2:). 5.1.5 Supportring Thesupportring(

47、seeFigures4and5)shallberigidlyfixedonarigidbaseandshallbedesignedsuchthatair cannotbetrappedunderthetestspecimen,possiblycausingaspringeffect.Belowthesupportring,thereshallbe enoughdistanceforthestrikertotravelaftertotalpenetrationofthetestspecimen.Thesupportringshallhavean insidediameterofeither40m

48、m 2mmor100mm 5mmandaminimumheightof12mm. 5.1.6 Striker/supportcombinations Thefollowingstriker/supportcombinationsarepermissible: Striker Support 20mm 40mm Defaultcombination 10mm 100mm Optional 5.1.7 Basefortestdevice Thetestdeviceshallbefirmlymountedonarigidstructureofsufficientstiffnesstominimize

49、deflectionofthe specimensupport.Themassofthebaseshallbeatleast180kg. Thetestdeviceisgenerallysusceptibletomechanicalvibration.Thedesignofthefoundationonwhichthebaseis mountedshallbesuchastominimizetheeffectofanymechanicalvibrationinthesystem.Thecentreofgravityof thebaseshallbeinlinewiththetrajectoryoftheimpactingstriker. 5.1.8 Clampingdevice(optional) Whenitisutilized,atwo-pieceannularspecimenclampconsistingofthesupportringandaclampingringsha