DIN EN ISO 527-5-2010 Plastics - Determination of tensile properties - Part 5 Test conditions for unidirectional fibre-reinforced plastic composites (ISO 527-5 2009) German version.pdf

1、January 2010DEUTSCHE NORM English price group 11No part of this standard may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 83.120!$Wz“1565287www.

2、din.deDDIN EN ISO 527-5Plastics Determination of tensile properties Part 5: Test conditions for unidirectional fibre-reinforced plasticcomposites (ISO 527-5:2009)English version of DIN EN ISO 527-5:2010-01Kunststoffe Bestimmung der Zugeigenschaften Teil 5: Prfbedingungen fr unidirektional faserverst

3、rkte Kunststoffverbundwerkstoffe(ISO 527-5:2009)Englische Fassung DIN EN ISO 527-5:2010-01SupersedesDIN EN ISO 527-5:2009-10www.beuth.deDocument comprises pages19DIN EN ISO 527-5:2010-01 National foreword This standard has been prepared by Technical Committee ISO/TC 61 “Plastics” (Secretariat: ANSI,

4、 USA) in collaboration with Technical Committee CEN/TC 249 “Plastics”, (Secretariat: NBN, Belgium). The responsible German body involved in its preparation was the Normenausschuss Kunststoffe (Plastics Standards Committee), Working Committee NA 054-02-02 AA Rieselfhige Duroplaste und langfaser-verst

5、rkte Kunststoffe. The DIN Standards corresponding to the International Standards referred to in clause 2 of this document are as follows. There is no DIN Standard available which corresponds to the International Standard ISO 1268 referred to in the EN. ISO 527-1 DIN EN ISO 527-1 ISO 527-4 DIN EN ISO

6、 527-4 ISO 2818 DIN EN ISO 2818 ISO 3534-1 DIN ISO 3534-1 DIN EN ISO 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 plastics Part 3: Test conditions for films and

7、 sheets Part 4: Test conditions for isotropic and orthotropic fibre-reinforced plastic composites Part 5: Test conditions for unidirectional fibre-reinforced plastic composites Amendments This standard differs from DIN EN ISO 527-5:1997-07 as follows: a) Normative references have been updated. b) In

8、 subclause 6.1.2, a thickness of 2 mm 0,2 mm has been specified for specimens from filament-wound test plates. Compared with DIN EN ISO 527-5:2010-01, the following corrections have been made to the German version only and therefore do not affect the English text: a) Term and definition of 4.3 “tens

9、ile stress” have been adapted to the English version. b) The term Dehnung (tensile strain) in 4.4 and 4.5 has been replaced by Zugdehnung. c) The key to Figure 3 has been brought in line with the English version. d) In A.2 c), second paragraph, the second sentence has been adapted to the English ver

10、sion. e) Some editorial modifications have been made. Previous editions DIN EN ISO 527-5: 1997-07, 2009-10 2 DIN EN ISO 527-5:2010-01 National Annex NA (informative) Bibliography DIN EN ISO 527-1, Plastics Determination of tensile properties Part 1: General principles DIN EN ISO 527-4, Plastics Dete

11、rmination of tensile properties Part 4: Test conditions for isotropic and anisotropic fibre-reinforced plastic composites DIN EN ISO 2818, Plastics Preparation of test specimens by machining DIN ISO 3534-1, Statistics Vocabulary and symbols Part 1: General statistical terms and terms used in probabi

12、lity 3 DIN EN ISO 527-5:2010-01 4 This page is intentionally blank EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 527-5July 2009ICS 83.120 Supersedes EN ISO 527-5:1997 English VersionPlastics - Determination of tensile properties - Part 5: Testconditions for unidirectional fibre-reinforced pl

13、astic composites(ISO 527-5:2009)Plastiques - Dtermination des proprits en traction -Partie 5: Conditions dessai pour les composites plastiquesrenforcs de fibres unidirectionnelles (ISO 527-5:2009)Kunststoffe - Bestimmung der Zugeigenschaften - Teil 5:Prfbedingungen fr unidirektional faserverstrkteKu

14、nststoffverbundwerkstoffe (ISO 527-5:2009)This European Standard was approved by CEN on 13 June 2009.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-

15、to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder

16、 the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hung

17、ary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: Av

18、enue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 527-5:2009: EEN ISO 527-5:2009 (E) Contents Page Foreword 31 Scope . 1 2 Normative references . 1 3 Principle. 2 4 Terms and definitions. 2 5 Ap

19、paratus 4 6 Test specimens . 4 7 Number of specimens 7 8 Conditioning 7 9 Procedure 7 10 Calculation and expression of results 7 11 Precision 7 12 Test report . 8 Annex A (normative) Specimen preparation . 9 Annex B (informative) Alignment of specimens . 11 DIN EN ISO 527-5:2010-01 2EN ISO 527-5:200

20、9 (E) Foreword This document (EN ISO 527-5:2009) 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 NBN. This European Standard shall be given the status of a national standard, either by p

21、ublication of an identical text or by endorsement, at the latest by January 2010, and conflicting national standards shall be withdrawn at the latest by January 2010. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENE

22、LEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 527-5:1997. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belg

23、ium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice

24、 The text of ISO 527-5:2009 has been approved by CEN as a EN ISO 527-5:2009 without any modification. DIN EN ISO 527-5:2010-01 31 Scope 1.1 This part of ISO 527 specifies the test conditions for the determination of the tensile properties of unidirectional fibre-reinforced plastic composites, based

25、upon the general principles given in Part 1. 1.2 See ISO 527-1:1993, Subclause 1.2. 1.3 The test method is suitable for all polymer matrix systems reinforced with unidirectional fibres and which meet the requirements, including failure mode, set out in this part of ISO 527. The method is suitable fo

26、r composites with either thermoplastic or thermosetting matrices, including preimpregnated materials (prepregs). The reinforcements covered include carbon fibres, glass fibres, aramid fibres and other similar fibres. The reinforcement geometries covered include unidirectional (i.e. completely aligne

27、d) fibres and rovings and unidirectional fabrics and tapes. The method is not normally suitable for multidirectional materials composed of several unidirectional layers at different angles (see ISO 527-4). 1.4 The method is performed using one of two different types of test specimen, depending on th

28、e direction of the applied stress relative to the fibre direction (see Clause 6). 1.5 See ISO 527-1:1993, Subclause 1.5. 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

29、 references, the latest edition of the referenced document (including any amendments) applies. ISO 527-1:1993, Plastics Determination of tensile properties Part 1: General principles ISO 527-4, Plastics Determination of tensile properties Part 4: Test conditions for isotropic and orthotropic fibre-r

30、einforced plastic composites ISO 1268 (all parts), Fibre-reinforced plastics Methods of producing test plates ISO 2818, Plastics Preparation of test specimens by machining ISO 3534-1, Statistics Vocabulary and symbols Part 1: General statistical terms and terms used in probability EN ISO 527-5:2009

31、(E) DIN EN ISO 527-5:2010-01 43 Principle See ISO 527-1:1993, Clause 3. 4 Terms and definitions For the purposes of this document, the following terms and definitions apply. 4.1 gauge length See ISO 527-1:1993, Subclause 4.1. 4.2 speed of testing See ISO 527-1:1993, Subclause 4.2. 4.3 tensile stress

32、 (engineering) See ISO 527-1:1993, Subclause 4.3, except that for type A specimens is defined as 1and for type B specimens as 2(see Clause 6 for details of type A and B specimens). 4.3.1 tensile strength M See ISO 527-1:1993, Subclause 4.3.3, except that Mfor type A specimens is defined as M1and for

33、 type B specimens as M2. 4.4 tensile strain increase in length per unit length of the original gauge length NOTE 1 For type A specimens, is defined as 1and for type B specimens as 2. NOTE 2 It is expressed as a dimensionless ratio or in percent. 4.5 tensile strain at tensile strength tensile failure

34、 strain Mtensile strain at the point corresponding to the tensile strength of the specimen NOTE 1 For type A specimens, Mis defined as M1and for type B specimens as M2. NOTE 2 It is expressed as a dimensionless ratio or in percent. EN ISO 527-5:2009 (E) DIN EN ISO 527-5:2010-01 54.6 modulus of elast

35、icity in tension Youngs modulus E See ISO 527-1:1993, Subclause 4.6, except that E for type A specimens is defined as E1and for type B specimens as E2. NOTE The strain values used are as given in ISO 527-1:1993, Subclause 4.6, i.e. = 0,000 5 and = 0,002 5 (see Figure 1), unless alternative values ar

36、e given in the material or technical specifications. 4.7 Poissons ratio See ISO 527-1:1993, Subclause 4.7, except that for type A specimens bis defined as 12and has 13, using the coordinates shown in Figure 2, and for type B specimens bis defined as 21and has 23. 4.8 specimen coordinate axes coordin

37、ate axes for the material under test, as shown in Figure 2, the direction parallel to the fibres being defined as the “1”-direction and the direction perpendicular to them (in the plane of the fibres) as the “2”-direction NOTE The “1”-direction is also referred to as the 0 or longitudinal direction

38、and the “2”-direction as the 90 or transverse direction. Key X strain, Y stress, aSlope E. Figure 1 Stress-strain curve EN ISO 527-5:2009 (E) DIN EN ISO 527-5:2010-01 6Figure 2 Unidirectionally reinforced plastic composite showing axes of symmetry 5 Apparatus See ISO 527-1:1993, Clause 5, except for

39、 the following: The micrometer or its equivalent (see 5.2.1) shall read to 0,01 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. Care shall be exercised to ens

40、ure that the pressure exerted by the grips (see 5.1.3) is only sufficient to prevent the specimen slipping in the grip when loaded to failure. Excessive grip pressure may cause crushing of the specimen due to the low transverse strength of these materials. Hydraulic grips which can be set at a const

41、ant grip pressure are preferred. If strain gauges bonded to the specimen are used, the errors produced by the transverse effect on the transverse gauge will generally be much larger for anisotropic composites than for metals, which are isotropic. Accurate measurement of Poissons ratio requires corre

42、ction for this effect. NOTE It is recommended that alignment of the specimen and loading train be checked as described in Annex B. 6 Test specimens 6.1 Shape and dimensions 6.1.1 General Two types of test specimen are specified for use with this part of ISO 527, depending on the direction of test re

43、lative to the fibre direction, as detailed and illustrated in Figure 3. EN ISO 527-5:2009 (E) DIN EN ISO 527-5:2010-01 7Dimensions in millimetres Key 1 specimen 2 tab 3 jaws aTab-fibre orientation. bFibre direction in type B specimen. cFibre direction in type A specimen. dZone covered by jaws. Dimen

44、sions in millimetres Type A Type B L3Overall length 250 250 (see Note 2) L2Distance between end tabs 150 1 150 1 b1Width 15 0,5 25 0,5 h Thickness 1 0,2 2 0,2 L0Gauge length (recommended for extensometers) 50 1 50 1 L Initial distance between grips (nominal) 136 136 LTLength of end tabs 50 50 (see N

45、ote 2) hTThickness of end tabs 0,5 to 2 0,5 to 2 NOTE 1 Requirements on specimen quality and parallelism are given in Clause 6. NOTE 2 For specimens taken from filament-wound plates prepared using ISO 1268-5, an overall specimen length of 200 mm is acceptable, with an end-tab length of 25 mm. Figure

46、 3 Type A and type B specimens EN ISO 527-5:2009 (E) DIN EN ISO 527-5:2010-01 86.1.2 Type A specimen (for longitudinal direction) Type A specimens shall have a width of 15 mm 0,5 mm, an overall length of 250 mm and a thickness of 1 mm 0,2 mm or, for specimens from filament-wound test plates, a thick

47、ness of 2 mm 0,2 mm. The sides of each individual specimen shall be parallel to within 0,2 mm. 6.1.3 Type B specimen (for transverse direction) Type B specimens shall have a width of 25 mm 0,5 mm, an overall length of 250 mm and a thickness of 2 mm 0,2 mm. The sides of each individual specimen shall

48、 be parallel to within 0,2 mm. For type B specimens taken from filament-wound plates prepared using ISO 1268-5, a test specimen length of 200 mm is acceptable. 6.2 Preparation of specimens 6.2.1 General In the case of moulding and lamination materials, prepare a test plate in accordance with the rel

49、evant part of ISO 1268 or another specified/agreed procedure. Cut individual specimens, or groups of specimens (see Annex A), from the test plate. In the case of finished products (for example, for quality control during manufacture or on delivery), take specimens from flat areas. Take all specimens with their axis within 0,5 of the mean fibre axis. Parameters for machining specimens are specified in ISO 2818. Further guidance o