1、BSI Standards PublicationBS EN 6036:2015Aerospace series Fibrereinforced plastics Testmethod Determination ofnotched, unnotched and filledhole compression strengthBS EN 6036:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 6036:2015.The UK participation in i
2、ts preparation was entrusted to TechnicalCommittee ACE/65, Non-metallic materials for aerospace purposes.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are
3、responsible for its correctapplication. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 82987 1ICS 49.025.40Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStand
4、ards Policy and Strategy Committee on 30 November 2015.Amendments/corrigenda issued since publicationDate Text affectedBS EN 6036:2015EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORMEN 6036 November 2015 ICS 49.025.40 English Version Aerospace series - Fibre reinforced plastics - Test method -Deter
5、mination of notched, unnotched and filled hole compression strength Srie arospatiale - Matires plastiques renforces de fibres - Mthode dessai - Dtermination de la rsistance en compression troue, lisse et troue habite Luft- und Raumfahrt - Faserverstrkte Kunststoffe - Prfverfahren - Bestimmung der Ke
6、rbdruckfestigkeit an gekerbten, ungekerbten und gebolzten Probekrpern This European Standard was approved by CEN on 10 August 2013. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national stan
7、dard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in a
8、ny other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Rep
9、ublic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN
10、 COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 6036:2015 EBS EN 603
11、6:2015EN 6036:2015 (E) 2 Contents Page European foreword . 3 1 Scope 4 2 Normative references 4 3 Terms and definitions . 4 4 Principle of the method 5 5 Designation of the method . 5 6 Apparatus . 5 7 Test specimen . 6 8 Procedure. 6 9 Presentation of the results 7 10 Test report . 9 BS EN 6036:201
12、5EN 6036:2015 (E) 3 European foreword This document (EN 6036:2015) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standard has received the appr
13、oval of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CEN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by May 2016, and conflict
14、ing national standards shall be withdrawn at the latest by May 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the
15、CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hun
16、gary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 6036:2015EN 6036:2015 (E) 4 1 Scope This standard defines a method to be used to determine the com
17、pression strength of notched, unnotched and filled hole fibre reinforced plastics. It is applicable to composite laminates with unidirectional layers or woven fabric reinforcement. This standard does not give any direction necessary to meet health and safety requirements. It is the responsibility of
18、 the user of this standard to consult and establish appropriate health and safety precautions. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited appl
19、ies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2374, Aerospace series Glass fibre reinforced mouldings and sandwich composites Production of test panels EN 2489, Aerospace series Fibre reinforced plastics Determination of the action
20、of test fluids EN 2565, Aerospace series Preparation of carbon fibre reinforced resin panels for test purposes 1)EN 2743, Aerospace series Fibre reinforced plastics Standard procedures for conditioning prior to testing unaged materials EN 2823, Aerospace series Fibre reinforced plastics Test method
21、for the determination of the effect of exposure to humid atmosphere on physical and mechanical characteristics 1)3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply. 3.1 notched tensile strength maximum compression load experienced by the notched test
22、specimen divided by the initial cross sectional area within the gauge length 3.2 unnotched tensile strength maximum compression load experienced by the unnotched test specimen divided by the initial cross sectional area within the gauge length 1) Published as ASD-STAN Prestandard at the date of publ
23、ication of this standard. http:/www.asd-stan.org/ BS EN 6036:2015EN 6036:2015 (E) 5 3.3 filled hole compression strength maximum compression load experienced by the filled hole test specimen divided by the initial gross cross sectional area within the gauge length 3.4 KT1value unnotched compression
24、strength divided by the filled hole compression strength 3.5 KT2value unnotched compression strength divided by the notched compression strength 4 Principle of the method A compression test on unnotched specimen is carried out in order to determine the original material strength. The same test is pe
25、rformed either on notched or a filled hole specimen to determine the residual strength. 5 Designation of the method The designation of the method used shall be in accordance with the following example: Description block TEST METHOD Identity block EN6036 II A Number of this standard Specimen type II
26、(see Figures 1 to 3) Laminate configuration A (see Table 1) NOTE If necessary, the code I9005 may be placed between the description block and the identity block. 6 Apparatus 6.1 Compression test machine accurate to within 1 % equipped with facilities to record maximum load and fitted with suitable g
27、rips or used with compression jig featuring a grip and movement alignment system. 6.2 Chamber adapted to the machine to carry out tests at temperature. The temperature shall be maintained within 3 C. 6.3 Timer. 6.4 Thermocouple with recorder to monitor temperature for tests at other than ambient. BS
28、 EN 6036:2015EN 6036:2015 (E) 6 6.5 Flat faced micrometre with 6 mm diameter faces, accurate to 0,01 mm. 6.6 Vernier calliper accurate to the nearest 0,1 mm. 7 Test specimen 7.1 Specimen description For the description, dimensions and tolerances, see Figure 1 for notched type specimen, Figure 2 for
29、unnotched type specimen and Figure 3 for filled hole type specimen. The laminate configuration for the fibre directions are defined in Table 1. 7.2 Test specimen preparationThe specimens are cut out from laminates. The coefficient of variation in the thickness measurements shall be smaller than 2 %
30、per laminate. The laminates shall be produced according to EN 2565 for carbon and in accordance with EN 2374 for glass. Special precautions have to be taken to ensure that no delamination occur during machining especially for the drilling of the notched and filled hole test specimens. The laminate s
31、hould be inspected for example by C-Scan to establish that the laminate is worth testing. If the NDT reveals unacceptable defects, limits defined in the specification invoking the test, the laminate should not be tested. The process parameters shall be in line with the specification invoking the tes
32、t. 7.3 Tabs The tests may be performed without the specimen being tabbed. However, if tabs are used they shall be strain compatible with the composite being tested either, by using precured tabs of 2 plies of fabric, lay-up (+45,45) or by co-bonding using a suitable prepreg system. The precured tabs
33、 shall be bonded on both specimen faces with an adhesive system that will meet the temperature and ageing requirements. Care should be taken to avoid the bonding temperature to add any undesired post cure effect to the laminate. 7.4 Number of specimensFive specimens shall be tested per test conditio
34、n, except when otherwise specified in the technical specification. If tests are carried out after ageing or at a temperature different from room temperature, care should be taken to assure that room temperature/dry reference specimens, which had been machined from the same plate as the specimens und
35、er investigation are also tested. 7.5 Ageing In case of tests after immersion, the conditions shall be according to EN 2489. For tests after exposure to humid atmosphere, the conditioning shall be in accordance with EN 2823. 8 Procedure 8.1 Conditioning The storage and testing of as received specime
36、ns shall be carried out at (23 2) C, (50 5) % relative humidity in accordance with EN 2743. Aged specimens shall be tested within a maximum of 8 h after removal from the exposure environment. BS EN 6036:2015EN 6036:2015 (E) 7 8.2 Determination of dimensions Measure and record the thickness and width
37、 at three points in the gauge length of the specimen before ageing and again before mechanical testing. Use the micrometre (see 6.5) for the thickness and the vernier calliper (see 6.6) for the width. Average the three measurements. 8.3 Test at ambient temperature Place the specimen in the jaws, ens
38、uring that it is aligned within 1 and centred on the machine axis. NOTE The jaws shall fully cover the tabs if used. Select the load range such that failure occurs between 20 % and 80 % of full scale. Compression load shall be applied at a constant cross head speed of 0,5 mm/min. Record the maximum
39、load Pr. 8.4 Test at temperature other than ambient Apply a thermocouple (see 6.4) on the composite material as close as possible to the centre of the specimen and seal the thermocouple from the surrounding air by using vacuum bag sealant. After a dry specimen has reached a temperature of 2 C below
40、the required elevated temperature or 2 C above the required sub-zero temperature, the specimen shall be maintained at the required condition for five minutes prior to testing. The above time for aged specimen is 1 min. The heat up/soak cycle used shall be given in the test report. For specimens that
41、 have been subjected to fluid immersion, apply EN 2489. For specimens that have undergone humidity ageing, apply EN 2823. Follow the same procedure as for the test at ambient temperature. 9 Presentation of the results 9.1 Tensile strength cFor notched specimens tw =cnPrFor filled hole specimens tw =
42、cfPrBS EN 6036:2015EN 6036:2015 (E) 8 For unnotched specimens tw =cuPrwhere cn,cf,cuare the tensile strengths for, notched, filled hole and unnotched specimens, in MPa; Pr is the maximum load, in N; w is the specimen width, in mm; t is the thickness of the specimen, in mm. 9.2 Nominal tensile streng
43、th ncFor notched specimens tw =ncnnPrFor filled hole specimens tw =ncfnPrFor unnotched specimens tw =ncunPrwhere ncn,ncf,ncuare the nominal tensile strength for, notched, filled hole and unnotched specimens, in MPa; Pr is the maximum load, in N; w is the specimen width, in mm; t is the nominal thick
44、ness of the specimen, in millimetres, as specified in the relevant material specification. 9.3 KT1value (see 3.4) K=cuT1cf9.4 KT2value (see 3.5) K=cuT2cnBS EN 6036:2015EN 6036:2015 (E) 9 10 Test report The test report shall refer to this standard and shall include the following: 10.1 Complete identi
45、fication of the material tested, including at least type, source, manufacturers code number, fibre areal weight, filament count, processing details. 10.2 All details regarding specimen preparation (including when applicable: tabs material, tabs adhesive and curing condition of this adhesive). 10.3 T
46、he measured specimen dimensions. 10.4 Ageing and/or exposure condition prior to the test. 10.5 Date of test, facility and identification of individuals performing the tests. 10.6 Equipment, method and test parameters used. 10.7 Individual values, mean value and standard deviation of tensile strength
47、 for notched, unnotched and filled specimen. 10.8 KT values. 10.9 Any incident which may have affected the results and any deviation from this standard. Table 1 Laminate configurations Lay-ups for different fibre mass per unit area directed and quasi-isotopic laminates Fibre mass per unit area (g/m2
48、) Quasi-isotopic laminates Type A Directed laminates Type B Tapes 130-145 (45, 0, 45, 90) 4 sym. (0, 45, 45, 0, 90) 3 sym. 160-190 (45, 0, 45, 90) 3 sym. (0, 45, 45, 0, 90) 2 sym. 260-290 (45, 0, 45, 90) 2 sym. (0, 45, 45, 0, 90) 2 sym. Fabrics (45, 0,a45, 90a) n bsym. a0 is equivalent to warp direc
49、tion and 90 is equivalent to welt direction.bn to be determined to have a laminate thickness as close as possible to 4 mm. BS EN 6036:2015EN 6036:2015 (E) 10 Dimensions in millimetres Tabs L = 2 l + 30 mm l = table length: Function of the equipment (test machine, jaws, etc.) and/or the material to be tested (tabs must be able to transfer the shear loads). t : according to lay-up (see Table 1). Figure 1 Notched compression specimen Type I BS EN 6036:2015EN 6036:2015 (E) 11 Dimensions in mil
