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1、BRITISH STANDARD AEROSPACE SERIES BS EN 2243-5:2005 Non-metallic materials Structural adhesives Test method Part 5: Ageing tests The European Standard EN 2243-5:2005 has the status of a British Standard ICS 49.025.50 ? Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 01:30:08 GMT+00:00 2006, U
2、ncontrolled Copy, (c) BSI BS EN 2243-5:2005 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 17 November 2005 BSI 17 November 2005 ISBN 0 580 46839 9 National foreword This British Standard is the official English language version of EN 2243-5
3、:2005. It supersedes BS EN 2243-5:1992 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee ACE/65, Non-metallic materials for aerospace purposes (excluding textiles), to Subcommittee ACE/65/-/63, Structural adhesives, which has the responsibility to: A li
4、st of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Sta
5、ndards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standa
6、rd does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European dev
7、elopments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 12, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments
8、 issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 01:30:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 2243-5 October 2005 ICS 49.025.50Supersedes EN 2243-5:1992 English Version Aerospace series
9、- Non-metallic materials - Structural adhesives - Test method - Part 5: Ageing tests Srie arospatiale - Matriaux non-mtalliques - Systme dadhsifs structuraux - Mthodes dessai - Partie 5 : Essais de vieillissement Luft- und Raumfahrt - Nichtmetallische Werkstoffe - Strukturelle Klebstoffsysteme - Prf
10、verfahren - Teil 5: Alterungsversuche This European Standard was approved by CEN on 26 September 2005. 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 standard without any alteration.
11、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. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation u
12、nder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary,
13、Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stas
14、sart, 36 B-1050 Brussels 2005 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 2243-5:2005: E Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 01:30:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 2 Contents Page Foreword 3 Intro
15、duction4 1 Scope.4 2 Normative references .4 3 Definitions, symbols and abbreviations4 4 Health and safety 5 5 Principle/Technique5 6 Resources5 7 Test samples/Test pieces.6 8 Testing procedure.7 9 Expression of results9 10 Designation .11 11 Test report.11 EN 2243-5:2005 Licensed Copy: sheffieldun
16、sheffieldun, na, Fri Nov 03 01:30:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 3 Foreword This European Standard (EN 2243-5:2005) has been prepared by the European Association of Aerospace Manufacturers - Standardization (AECMA-STAN). After enquiries and votes carried out in accordance with the rul
17、es of this Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of AECMA, prior to its presentation to CEN. This European Standard shall be given the status of a national standard, either by publication of an identical te
18、xt or by endorsement, at the latest by April 2006, and conflicting national standards shall be withdrawn at the latest by April 2006. 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
19、 for identifying any or all such patent rights. This European Standard supersedes EN 2243-5:1992. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic
20、, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 2243-5:2005 Licensed Copy: sheffieldun sheffieldun, na, Fri N
21、ov 03 01:30:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 4 Introduction This standard is part of the series of EN non-metallic material standards for aerospace applications. The general organization of this series is described in EN 4385. This standard is a level 3 document as defined in EN 4385. 1
22、 Scope This standard defines the general requirements for the determination of resistance of structural adhesives and adhesive bonded joints against environmental influences. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated r
23、eferences, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 3768, Metallic coatings Neutral salt spray test (NSS test). EN 2243-1, Structural adhesives Test methods Part 1 Single lap shear Aerospace series.1
24、) EN 2243-2, Aerospace series Non-metallic materials Structural adhesives Test method Part 2: Peel metal-metal. EN 2243-6, Aerospace series Non-metallic materials Structural adhesives Test method Part 6: Determination of shear stress and shear strain. EN 2379, Aerospace series Fluids for assessment
25、of non-metallic materials.2) EN 2743, Aerospace series Fibre reinforced plastics Standard procedures for conditioning prior to testing unaged materials. EN 4385, Aerospace series Non-metallic materials General organisation of standardisation Links between types of standards.2) 3 Definitions, symbols
26、 and abbreviations 3.1 Definitions Not applicable 1) Published as AECMA Standard at the date of publication of this standard. 2) Published as AECMA Prestandard at the date of publication of this standard. EN 2243-5:2005 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 01:30:08 GMT+00:00 2006,
27、Uncontrolled Copy, (c) BSI 5 3.2 Symbols and abbreviations For the purposes of this document, the following symbols and abbreviations apply. average shear stress; F average peel strength; Ge average elastic shear modulus; A bond line area; R , RF reduction percentage in shear strength; RG reduction
28、percentage in shear modulus; Aa percentage attacked area. 4 Health and safety This standard does not necessarily include all health and safety requirements, associated with its use. Persons using this standard shall be familiar with normal laboratory/test house practices. It is the responsibility of
29、 the user to establish satisfactory health and safety practices and to ensure conformity with any European, national or local laws/regulations. 5 Principle/Technique Not applicable 6 Resources 6.1 Apparatus All test equipment shall be calibrated at intervals not exceeding 12 months. 6.1.1 Humidity c
30、abinet For relative humidity test exposures, a humidity cabinet is required in which the exposure zone can be maintained at (50 3) C or (70 3) C and a minimum of 95 % relative humidity. It shall be possible to record the temperature continuously. To obtain and to maintain the humidity, only freshly
31、distilled water shall be used. Airflow is allowed. 6.1.2 Saltspray cabinet A saltspray cabinet is required, in accordance with ISO 3768. EN 2243-5:2005 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 01:30:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 6 6.1.3 Fluid containers For fluid immers
32、ion tests, containers are required of sufficient size, capable of maintaining a fluid temperature within the required range (see Table 1), independent of the location of the test panel in the fluid. It shall be possible to record the temperature continuously. 6.2 Materials/Reagents Test fluids in ac
33、cordance with EN 2379 (see Table 1). 6.3 Qualification of personnel Not applicable 7 Test samples/Test pieces 7.1 Materials According to the relevant test method (see Table 1). 7.2 Surface preparation before bonding According to the relevant test method (see Table 1). 7.3 Bonding According to the re
34、levant test method (see Table 1). 7.4 Dimensions of panels According to the relevant test method (see Table 1). 7.5 Storage of test panels after bonding They shall be stored under the following conditions: temperature : (23 2) C; relative humidity : (50 5) %. 7.6 Cutting of panels and preparation of
35、 test pieces According to the relevant test method (see Table 1). NOTE For salt spray testing, the test panels shall be protected against corrosion before cutting to test pieces. 7.7 Test pieces 7.7.1 Dimensions According to the relevant test method (see Table 1). EN 2243-5:2005 Licensed Copy: sheff
36、ieldun sheffieldun, na, Fri Nov 03 01:30:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 7 7.7.2 Number of specimens According to the relevant test method (see Table 1). From each test panel, a minimum of two test pieces shall be used as reference test pieces (see 9). 7.7.3 Identification Each test pi
37、ece shall be marked to identify the panel from which it was cut and its position in the panel. 8 Testing procedure 8.1 Ageing See Table 1. Table 1 Environment Temperature (C) Time (days) Code Clause ref. Type of test 30 A11 60 A12 Relative humidity 95 % to 100 % 50 3 90 A13 EN 2243-1 30 A21 60 A22 R
38、elative humidity 95% to 100 % 50 3 90 A23 EN 2243-2 30 A31 60 A32 Relative humidity 95 % to 100 % 50 3 90 A33 EN 2243-6 10 B11 20 B12 Relative humidity 95 % to 100 % 70 3 30 B13 EN 2243-1 10 B21 20 B22 Relative humidity 95 % to 100 % 70 3 30 B23 EN 2243-2 10 B31 20 B32 Relative humidity 95 % to 100
39、% 70 3 30 B33 8.1.1 EN 2243-6 30 C1 60 C2 Salt spray ISO 3768 35 2 90 C3 8.1.2 EN 2243-2 continued EN 2243-5:2005 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 01:30:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 8 Table 1 (concluded) Environment Temperature (C) Time (days) Code Clause ref.
40、Type of test 15 D1 30 D2 Phosphorester oils EN 2379 (XX) 70 2 60 D3 30 E1 40 2 60 E2 Test fuel EN 2379 (XXI) 90 E3 30 F1 60 F2 Standard test fuel EN 2379 (XXII) 40 2 90 F3 30 G1 60 G2 Anti-icing fluid EN 2379 (XIV) 40 2 90 G3 15 H1 30 H2 Hydraulic fluid EN 2379 (XII) 70 2 60 H3 EN 2243-1 15 J1 30 J2
41、 Phosphorester oils EN 2379 (XX) 70 2 60 J3 30 K1 60 K2 Test fuel EN 2379 (XXI) 40 2 90 K3 30 L1 60 L2 Standard test fuel EN 2379 (XXII) 40 2 90 L3 30 M1 60 M2 Anti-icing fluid EN 2379 (XIV) 40 2 90 M3 15 N1 30 N2 Hydraulic fluid EN 2379 (XII) 70 2 60 N3 8.1.3 EN 2243-6 8.1.1 Relative humidity (expo
42、sure at 50 C or 70 C) The exposure shall be continuous. Any interruption shall be recorded. The test pieces shall be suspended in the exposure area in such a way that the minimum distance between each other and the sides of the humidity cabinet is 25 mm. The test pieces shall be arranged so that con
43、densate from one test piece does not drip on another. EN 2243-5:2005 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 01:30:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 9 8.1.2 Salt spray See ISO 3768 except that the test pieces shall be suspended in such a way that the minimum distance betwe
44、en each other and the side of the cabinet is 25 mm. 8.1.3 Fluids The test piece shall be exposed in the test fluid in such a way that the joints are completely immersed. The position of the test piece is not critical, provided the minimum distance of the joints between each other and the sides and b
45、ottom of the container is 10 mm. The exposure time shall be estimated from the time the test fluid has reached the test temperature specified in the Table 1. Each test shall start with fresh fluid that shall not be changed during the test. 8.2 Cleaning Immediately after exposure, the test pieces sha
46、ll be cleaned with water (maximum temperature 35 C) and dried with clean dry cloths. 8.3 Destructive testing Destructive testing shall be carried out according to the relevant test method standard (and after 24 h, but within 30 h, after removal from the exposure). Conditioning during this period of
47、time shall take place at standard atmosphere according to EN 2743. Reference test pieces shall be destructively tested within three days or the final cure. 9 Expression of results 9.1 Single lap shear tests The shear strength per test piece is to be carried out according to EN 2243-1. The reduction
48、percentage R of the aged test pieces compared with the reference test pieces shall be calculated as follows: R = (1 2)/1 . 100 % where: 1 average shear strength of all reference test pieces; 2 average shear strength of all aged test pieces. 9.2 Peel test metal/metal 9.2.1 Calculation of reduction in
49、 peel strength The peel strength per test piece is to be carried out according to EN 2243-2. EN 2243-5:2005 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 01:30:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 10 The reduction percentage RF of the aged test pieces compared with the reference test pieces shall be calculated as follows: RF = (F1 F2)/F1 . 100 % where: F1 avera