BS EN ISO 10618-2004 Carbon fibre - Determination of tensile properties of resin-impregnated yarn《碳纤维 树脂浸渍纱拉伸性能的测定》.pdf

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1、BRITISH STANDARD BS EN ISO 10618:2004 Carbon fibre Determination of tensile properties of resin-impregnated yarn The European Standard EN ISO 10618:2004 has the status of a British Standard ICS 59.100.20 BS EN ISO 10618:2004 This British Standard was published under the authority of the Standards Po

2、licy and Strategy Committee on 7 October 2004 BSI 7 October 2004 ISBN 0 580 44540 2 National foreword This British Standard is the official English language version of EN ISO 10618:2004. It is identical with ISO 10618:2004. It supersedes BS EN ISO 10618:2000 which is withdrawn. The UK participation

3、in its preparation was entrusted to Technical Committee PRI/42, Fibre reinforced thermosetting plastics and prepregs, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which imple

4、ment international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication doe

5、s not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/Europea

6、n committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN ISO title page, t

7、he EN ISO foreword page, the ISO title page, pages ii to iv, pages 1 to 17 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM ENISO

8、10618 August2004 ICS59.100.20 SupersedesENISO10618:1999 Englishversion CarbonfibreDeterminationoftensilepropertiesofresin impregnatedyarn(ISO10618:2004) FibresdecarboneDterminationdespropritsen tractionsurfilsimprgnsdersine(ISO10618:2004) KohlenstofffasernBestimmungdesZugverhaltensvon harzimprgniert

9、enGarnen(ISO10618:2004) ThisEuropeanStandardwasapprovedbyCENon14August2004. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings u

10、chnational standardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesam

11、estatusast heofficial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France, Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal, Slovakia, Slovenia,Spain,Sweden,Switzerland

12、andUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2004CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.ENISO10618:2004:E I NESO 01:8162004 (E) 2

13、Foreword This document (EN ISO 10618:2004) has been prepared by Technical Committee ISO/TC 61 “Plastics“ in collaboration with Technical Committee CEN/TC 249 “Plastics“, the secretariat of which is held by IBN. This European Standard shall be given the status of a national standard, either by public

14、ation of an identical text or by endorsement, at the latest by February 2005, and conflicting national standards shall be withdrawn at the latest by February 2005. This document supersedes EN ISO 10618:1999. According to the CEN/CENELEC Internal Regulations, the national standards organizations of t

15、he following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain

16、, Sweden, Switzerland and United Kingdom. Endorsement notice The text of ISO 10618:2004 has been approved by CEN as EN ISO 10618:2004 without any modifications. ENISO10618:2004 Reference number ISO 10618:2004(E) OSI 4002INTERNATIONAL STANDARD ISO 10618 Second edition 2004-08-15 Carbon fibre Determin

17、ation of tensile properties of resin-impregnated yarn Fibres de carbone Dtermination des proprits en traction sur fils imprgns de rsine ENISO10618:2004IS:81601 O4002(E) DPlcsid Fremia ihTs PDF file may ctnoian emdebt dedyfepcaes. In ccaocnadrw eith Aebods licensilop gnic,y this file mairp eb ynted i

18、v roweb detu slahl ton ide ebtlnu deess the typefaces whice era hml era deddebicsnede to i dnanstlaled t noeh computfrep reormign tide ehtin.g In wodlnidaot gnhis file, trapise atpecc tiereht nser ehnopsiiblity fo not infriigngn Aebods licensilop gnic.y ehT ISO tneClar Secrteiraat caceptl on siibali

19、ty in this .aera Ai ebods a tredamafo kr Aebod SystemI sncotaropr.de teDails fo teh softwacudorp erts sut deo crtaee this PDF file cna f ebi dnuon tlareneG eh Info leratit evo the file; tP ehDc-Frtaeion marapterew setpo erimizde for irpnti.gn Evyre caer neeb sah taken to sneeru that the file is suit

20、lbae fosu re yb ISO memdob rebeis. In tlnu ehikletneve y ttah lborp aem leratit gno it is f,dnuo plsaee inform ttneC ehlar Secrteiraat ta the serddaig sleb nevwo. ISO 4002 All irthgs erse.devr lnUeto sswrehise specified, on trap fo this lbupictaion maeb y cudorperro de tuilizi den yna form ro na ybm

21、 ynae,s lecetrinoc ro mecinahcal, inclidung tohpcoiypodna gn micrfoilm, wittuoh repmissii non writign from ietI rehSa Ot tsserdda eh ebolw or ISOs memreb i ydobn the cnuotrfo y ttseuqer ehe.r ISO cirypothg fofice saCe tsopale 65 eneG 1121-HC 02 av leT. 4 + 10 947 22 1 11 xaF0 947 22 14 + 9 74 E-mail

22、 coirypthgiso.o gr We bwww.is.o gro Pulbisdehi n Switlrez dnaii ISO 4002 Allr ithgsr esedevrENISO10618:2004IS:81601 O4002(E) I SO 4002 All irthgs ersedevr iiiContents Page Foreword iv 1 Scope 1 2 Normative references . 1 3 Terms and definitions. 1 4 Symbols . 1 5 Principle . 2 6 Apparatus and materi

23、als 2 7 Test specimens . 3 8 Atmosphere for conditioning and testing 5 9 Procedure for tensile testing . 5 10 Expression of results 6 11 Precision 8 12 Test report 8 Annex A (informative) Examples of heat-curable epoxy-resin systems. 10 Annex B (informative) Examples of impregnating apparatus 12 Ann

24、ex C (informative) Examples of tabs and tab-preparation apparatus 13 Annex D (informative) Examples of extensometers 15 ENISO10618:2004IS:81601 O4002(E) iv I SO 4002 All irthgs ersedevrForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards b

25、odies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizati

26、ons, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the

27、 ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of t

28、he member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 10618 was prepared by Technical Committee ISO/TC 61, Plastics, S

29、ubcommittee SC 13, Composites and reinforcement fibres. This second edition cancels and replaces the first edition (ISO 10618:1999), which has been technically revised. ENISO10618:2004INTENRATIONAL TSANDADR IS:81601 O4002(E)I SO 4002 All irthgs ersedevr 1Carbon fibre Determination of tensile propert

30、ies of resin-impregnated yarn 1 Scope This International Standard specifies a method of test for the determination of the tensile strength, tensile modulus of elasticity and strain at maximum load of a resin-impregnated yarn specimen. The method is applicable to yarns (continuous and staple-fibre ya

31、rns) of carbon fibre for use as reinforcements in composite materials. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced

32、document (including any amendments) applies. ISO 291, Plastics Standard atmospheres for conditioning and testing ISO 527-1, Plastics Determination of tensile properties Part 1: General principles ISO 1889, Reinforcement yarns Determination of linear density ISO 10119, Carbon fibre Determination of d

33、ensity ISO 10548, Carbon fibre Determination of size content 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 527-1 and the following apply. 3.1 cross-sectional area of carbon-fibre yarn A fthe linear density of the yarn divided by the density of the

34、carbon fibre NOTE It is expressed in square millimetres. 4 Symbols The symbols used in this International Standard are as follows: ftensile strength, in megapascals; F fmaximum tensile force, in newtons; A fcross-sectional area of yarn, in square millimetres; ENISO10618:2004IS:81601 O4002(E) 2 I SO

35、4002 All irthgs ersedevr fdensity of yarn, in grams per cubic centimetre; T tf linear density of yarn, in tex; T tilinear density of impregnated yarn, in tex; E ftensile modulus of elasticity, in gigapascals; L 0gauge length of extensometer, in millimetres; L variation in the length, in millimetres,

36、 corresponding to the variation in the force, in newtons; F variation in the force, in newtons, corresponding to the variation in the length, in millimetres. 5 Principle A sample of yarn is uniformly impregnated with resin, then cured to provide test specimens. The specimens are loaded in tension at

37、 a constant speed by a suitable mechanical testing machine until failure. The tensile strength, the tensile modulus of elasticity and the strain at maximum load are calculated from the force-extension relationship. The tensile modulus is determined by dividing the variation in the stress by the corr

38、esponding variation in the strain between two defined points. For carbon-fibre yarns, the relation between stress and strain is not linear, hence a chord modulus must be defined. In method A, the modulus is defined between two strain levels and in method B it is defined between two load levels. The

39、linear density and the size content have to be determined independently. NOTE The precision of the values obtained is believed to be approximately the same for method A and for method B. However, for the generally non-linear stress-strain response common to carbon fibres, the mean modulus values fro

40、m these two methods will be somewhat different and not necessarily statistically comparable. Method B, or other methods, may be used in the purchase specification or for quality assurance by agreement between customer and supplier. 6 Apparatus and materials 6.1 Resin The impregnating resin shall be

41、compatible with the yarn and its size. The viscosity of the resin or resin solution shall be such that sufficient resin pick-up is achieved to ensure uniform impregnation. The strain at failure of the cured resin shall be at least twice that of the fibre, preferably three times. In this respect, hea

42、t- curable epoxy-resin systems with a viscosity during impregnation of preferably less than 1 000 mPas are suitable (see Annex A for example) as is any formulation capable of giving test specimens that fulfill the requirements of this International Standard. The resin formulation, however, shall be

43、specified in detail and shall be agreed upon between the fibre manufacturer and the user. 6.2 Impregnation apparatus Test specimens can be prepared by any method which produces a uniformly impregnated, smooth specimen. These methods include both single- and multiple-specimen preparation techniques.

44、A multiple-specimen impregnation apparatus may consist of: 6.2.1 A holder for the sample yarn bobbin, with yarn-tensioning devices. 6.2.2 An impregnation bath, with temperature-control devices and impregnation rollers or yarn-tensioning bars. ENISO10618:2004IS:81601 O4002(E) I SO 4002 All irthgs ers

45、edevr 36.2.3 A unit to remove excess resin from the impregnated yarn by passing it over rollers covered with fabric, paper or felt and/or through a die. 6.2.4 A frame to wind up the impregnated yarn, preferably made of wood or metal coated with rubber. Examples of impregnation apparatus are given in

46、 Annex B. 6.3 Curing oven with temperature control A fan circulation oven is preferable to ensure uniform curing of the resin. 6.4 Tensile-testing machine 6.4.1 Use a tensile-testing machine with a constant crosshead speed, equipped with force- and extension- recording devices. The accuracy of the f

47、orce indication shall be better than 1 % of the recorded value. The specimen-gripping system shall ensure that the test specimen is aligned with the axis of the test machine. 6.4.2 The tensile-testing machine shall include an extensometer linked to a continuous-recording device which automatically r

48、ecords the extension within the gauge length of the extensometer as a function of the force on the test specimen. The extensometer should be sufficiently light to induce only negligible stresses in the test specimen. The gauge length of the extensometer shall be at least 50 mm but preferably 100 mm. The gauge length shall be determined with a tolerance of 1 %. The extensometer shall have a tolerance on deviation from linearity of not more than 0,1 % over the required extension-measurement range.

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