1、STD.BSI BS EN IS0 SS7-V-ENGL 1777 Lb24bb IlbZbbLiI 35T BS EN IS0 BS 2782 : Part 3 : Method 326F : 1997 527-4 : 1997 BRITISH STANDARD Plastics - Determination of tensile properties Part 4. Test conditions for isotropic and orthotropic fibre-reinforced plastic composites The European Standard EN IS0 5
2、27-4 : 1997 has the status of a British Standard ICs 83.120 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW _. BS EN IS0 527-4 : 1997 National foreword This British Standard is the English language version of EN IS0 5274 : 1997. It is identical with IS0 5274 : 1997. The UK par
3、ticipation in its preparation was entrusted to Technical Committee PRI/42, Fibre reinforced thermosetting plastics and prepregs, which has the responsibility to: - aid enquirers to undersiand the text; - present to the responsible internaonavEuropean committee any enquiries on the interpretation, or
4、 proposals for change, and keep the UK interests informed; - monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this codtte can be obtained on request to its secretary. Cross-references Attention is drawn to the fact that ann
5、ex ZA lists nonnative references to intedonal publications with their corresponding 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
6、Index, or using the Find facility of the BSI Standards Electronic Catalogue. Compliance with a British Standard does not of itself confer immunity from legal obligations. This itish Standard, having been prepared under the direction of the Sector Board for MaWrials and Chemicals, was published under
7、 the authority of the Standards Board and comes into effect on 16 July 1997 O BSI 1997 Summary of pages This document comprises a front cover, an inside nont cover, the EN IS0 title page, the EN IS0 foreword page, the IS0 titde page, page ii, pages 1 to 11, the annex ZA page, an inside back cover an
8、d a back cover. Amendments issued since publication I Date I Text Amd No. ISBN O 680 27558 2 STD-BSI BS EN IS0 527-4-ENGL 1777 H Lb2i-lbb7 Ob2bb3 122 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN IS0 527-4 April 1997 ICs 83.120 Descriptors: sea IS0 document English version Plastics - Determin
9、ation of tensile properties - Part 4: Test conditions for isotropic and orthotropic fibre-reinforced plastic composites (IS0 527-4: 1997) Plastiques - Determination des proprits en traction - Partie 4: Conditions dessai mur - = les composites plastiques renforcs de fibres isotropes et orthotropes (I
10、S0 527-C:1997) - - Kunststoffe - Bestimg der Zugeigenschaften - Teil 4: Prufbedingungen fur isotrop und anisotrop faserverstarkte Kunststoffverbunduerkstoffe (IS0 527-4:1997) This European Standard was approved by CEN on 1997-03-28. CEN members are bound to canply with the CENKENELEC Internal Regula
11、tions which stipulate the conditions for giving this European Standard the status of a national standard uithout any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. lhe Euro
12、pean Standards exist in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its oun language end notified to the Central Secretariat has the same status as the official versions. CEN menbets are the nati
13、onal standards bodies of Austria, Belgiun, Czech Republic, Dennerk, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Noruay, Portugal, Spain, Surden, Suitzerland and United Ki ngdom . CEN European Comnittee for Standardization Comit Europen de Normalisation Europis
14、ches Komitee fr Nornung Cmtrsl Secretariat: rue de Stassart.36 8-1050 Brussels 0 1997 CEN - All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN IS0 527-6:1997 E EN IS0 527-4 : 1997 Foreword The text of the International Standard IS0 527-4:
15、 1 997 has been prepared by Technical Committee ISO/TC 61 “Plastics“ in collaboration with Technical Committee CENTTC 249 “Plastics“, the secretariat of which is held by IBN. IS0 527 contains the following parts with the general title: “Plastics - Determination of tensile properties“. Part 1 : Gener
16、al principles Part 2: Test conditions for moulding and extrusion plastics Part 3: Test conditions for films and sheets Part 4: Test conditions for isotropic and orthotropic fibre-reinforced plastic composites Part 5: Test conditions for unidirectional fibre-reinforced plastic composites This Europea
17、n Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 1997, and conflicting national standards shall be withdrawn at the latest by October 1997. According to the CENKENELEC Internal Regulations, the nationa
18、l standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice T
19、he text of the International Standard IS0 527-4:1997 was approved by CEN as a European Standard without any modification. NOTE: Normative references to International Standards are listed in annex ZA (normative). STD.BSI BS EN IS0 527-4-ENGL 1797 Lb24bb7 Ub2bbLi5 TT5 EN IS0 527-4 : 1997 INTERNATIONAL
20、 STANDARD IS0 527-4 First edition 1 997-04- 1 5 Plastics - Determination of tensile properties - Part 4: Test conditions for isotropic and orthotropic fibre-reinforced plastic composites Plastiques - Dteminafion des proprits en traction - Pattie 4: Conditions dessai pour les composites Plastiques re
21、nfotcs de fibres isotropes et orthotropes * * rn Reference number IS0 527-411 997( E) STD-BSI BS EN IS0 527-4-ENGL 1997 m Lb24bb7 Ob2bbb 931 m EN IS0 527-4 : 1997 Foreword IS0 (the Intemational Organization for Standardization) is a worldwide federation of national standards bodies (IS0 member bodie
22、s). The work of preparing International Standards is normally carried out through IS0 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 organizations, governmental and n
23、on- governmental, in liaison with ISO, also take part in the work. IS0 collaborates closely with the Intemational Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodie
24、s for voting. Publication as an Intemational Standard requires approval by at least 75 % of the member bodies casting a vote. Intemational Standard IS0 527-4 was prepared by Technical Committee ISO/TC 61 , Plastics, Subcommittee SC 2, Mechanical properties. Together with part 5, this part of IS0 527
25、 cancels and replaces the first edition of IS0 3268 (IS0 3268:1978) which has been technically revised. IS0 527 consists of the following parts, under the general title Plastics - Determination of tensile properties: - Part 1: General principles - - Part 2: Test conditions for moulding and extrusion
26、 plastics Part 3: Test conditions for sheet and film - Part 4: Test conditions for isotropic and orthotropic fibre-reinforced plastic composites - Part 5: Test conditions for unidirectional fibre-reinforced plastic composites Annex A forms an integral part of this part of ISO527. Annex B is for info
27、rmation only. Descriptors: plasics, reinforced plastics, tests, tension tests, determination, tensile properties, testing conditions, test specimens. i - STD.BS1 BS EN IS0 527-4-ENGL 1777 a Lb24bb Ob2bb87 878 a EN IS0 527-4 : 1997 Plastics - Determination of tensile properties - Part 4: Test conditi
28、ons for isotropic and orthotropic fibre-reinforced plastic composites 1 scope 1 .I This part of IS0 527 specifies the test conditions for the determination of the tensile properties of isotropic and orthotropic fibre-reinforced plastic composites, based upon the general principles given in part 1. U
29、nidirectionally reinforced materials are covered by part 5. - 1.2 See IS0 527-1 , subclause 1.2. - - e 1.3 The test method is suitable for use with the following materials: - * * TB - fibre-reinforced thermosetting and thermoplastic composites incorporating non-unidirectional reinforcements such as
30、mats, woven fabrics, woven rovings, chopped strands, combinations of such reinforcements, hybrids, rovings, short or milled fibres or preimpregnated materials (prepregs) (for directly injection-moulded specimens, see specimen 1A in IS0 527-2:1993); - combinations of the above with unidirectional rei
31、nforcements and multidirectional reinforced materials constructed from unidirectional layers, provided such laminates are symmetrical (for materials with completely, or mainly, unidirectional reinforcements, see IS0 527-5); - finished products made from these materials. The reinforcement fibres cove
32、red include glass fibres, carbon fibres, aramid fibres and other similar fibres. 1.4 The method is performed using specimens machined from a test panel made in accordance with IS0 1268 or by equivalent methods, or from finished and semi-finished products with suitable flat areas. 1.5 See IS0 527-1,
33、subclause 1.5. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this pari of IS0 527, At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based
34、 on this pari of IS0 527 are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and IS0 maintain registers of currently valid International Standards. IS0 527-1 :1993, Plastics - Determination of tensile properties - Part 1
35、: General principies. 1 STD.BS1 BS EN IS0 527-Y-ENGL 1777 W Lb24bb Ob2bb 704 = EN IS0 527-4 : 1997 IS0 527-2:1993, Plastics - Determination of tensile properties - Part 2: Test conditions for moulding and extrusion plastics. IS0 527-5:1997, Plastics - Determination of tensile properties - Part 5: Te
36、st conditions for unidirectional fibre- reinforced plastic composites. IS0 1268:1974, Plastics - Preparation of glass fibre reinforced, resin bonded, low-pressure laminated plates or panels for test puposeS. IS0 281 8:1994, Plastics - Preparation of test specimens by machining. IS0 3534-1 :1993, Sta
37、tistics - Vocabulary and symbols - Part 1: Probability and general Statistical terms. 3 Principie See IS0 527-1, clause 3. 4 Definitions For the purposes of this part of IS0 527, the following definitions apply. 4.1 gauge length: See IS0 527-1 , subclause 4.1. 4.2 speed of testing: See IS0 527-1, su
38、bclause 4.2. 4.3 tensile stress, o (engineering): See IS0 527-1, subclause 4.3, except that o for “1“-direction specimens is defined as o1 and for “2“-direction specimens as 02 (see 4.8 for definitions of these directions). 4.3.1 tensile strength, m: See IS0 527-1, subclause 4.3.3, except that % for
39、 “1 “-direction specimens is defined as mi and for “2“direction specimens as w. 4.4 tensile strain, E: See IS0 527-1, subclause 4.4, except that E for “1“-direction specimens is defined as EI and for “2“diWion specimens as 9. It is expressed as a dimensionless ratio or in percent. 4.5 tensile strain
40、 at tensile strength; tensile failure strain, q: The tensile strain at the point corresponding to the tensile strength of the specimen. For “1“direction specimens, Q is defined as a1 and for T-direction specimens as 2. It is expressed as a dimensionless ratio or in percent. 4.6 modulus of elasticity
41、 in tension; Youngs modulus, E: See IS0 527-1, subclause 4.6, except that E for “l-direction specimens is defined as El and for “2“-direction specimens as E2. The strain values used are as given in IS0 527-1, subclause 4.6, .e. E = 0,000 5 and E“ = 0,002 5 (see figure l), unless altemative values ar
42、e given in the material or technical specifications. 4.7 Poissons ratio, p: See IS0 527-1, subclause 4.7, except that for l-direction specimens pb is defined as p12 and ph as p13, using the coordinates shown in figure 2. For Tdirection specimens, pb is defined as p21 and p, as P23. 2 * * m EN IS0 52
43、7-4 : 1997 4.8 specimen coordinate axes: The “l-direction is normally defined in terms of a feature associated with the material structure or the production process, such as the length direction in continuous-sheet processes (see figure 2). The “2“-direction is perpendicular to the “1 “-direction. N
44、OTES 1 The “1“-direction is also referred to as the O“ or longitudinal direction and the “2“-direction as the 90“ or transverse direction- 2 For unidirectional materials covered by part 5 of this International Standard, the direction parallel to the fibres is defined as the l-direction and the direc
45、tion perpendicular to the fibres (in the plane of the fibres) as the 2“-direction. CM b vi al v) L U“ U O U“ - U E=- “ - * E c- Ctl Strain, (= 0,000 5) (= 0,002 5) Figure 1 - Stress-strain curve I Figwe 2 - Fibre-reinforced plastic composite showing axes of symmetry 5 Apparatus See IS0 527-1, clause
46、 5, except for the following: The micrometer or its equivalent (see 5.2.1) shall read to 0,Ol mm or better. It shall have a suitable-size ball-ended anvil if used on irregular surfaces and a flat anvil if used on flat, smooth (e.g. machined) surfaces. Subclause 5.2.2 does not apply. NOTE - It is rec
47、ommended that alignment of the specimen and loading train be checked as described in annex B. 3 EN IS0 527-4 : 1997 6 Test specimens 6.1 Shape and dimensions Three types of test specimen are specified for use with this part of IS0 527, as detailed and illustrated in figure 3 (type 16) and figure 4 (
48、types 2 and 3). Type 1 B is for testing fibre-reinforced thermoplastics. Type 1 B specimens may also be used for fibre-reinforced thermosets if they break within the gauge length. Type 1B shall not be used for multidirectional, continuous-fibre- reinforced materials. Type 2 (rectangular without end
49、tabs) and type 3 (rectangular with bonded end tabs) are for testing fibre-reinforced thermosets and thermoplastics. Specimens with unbonded end tabs are considered as type 2. The preferred width of type 2 and type 3 specimens is 25 mm, but widths of 50 mm or greater may be used if the tensile strength is low due to the particular type of reinforcement used. The thickness of type 2 and type 3 specimens shall be between 2 mm and 10 mm. To decide whether to use type 2 or type 3 specimens, first carry out tests with type 2 specimens and,
