1、BSI Standards PublicationBS ISO 19095-3:2015Plastics Evaluation ofthe adhesion interfaceperformance in plastic-metalassembliesPart 3: Test methodsBS ISO 19095-3:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 19095-3:2015.The UK participation in its prepar
2、ation was entrusted to TechnicalCommittee PRI/52, Adhesives.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 responsible for its correctapplication. The B
3、ritish Standards Institution 2015. Published by BSI StandardsLimited 2015ISBN 978 0 580 85347 0ICS 83.180Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 August
4、2015.Amendments issued since publicationDate Text affectedBS ISO 19095-3:2015 ISO 2015Plastics Evaluation of the adhesion interface performance in plastic-metal assemblies Part 3: Test methodsPlastiques valuation des performances de linterface dadhrence dans les assemblages plastique-mtal Partie 3:
5、Mthodes dessaiINTERNATIONAL STANDARDISO19095-3First edition2015-08-01Reference numberISO 19095-3:2015(E)BS ISO 19095-3:2015ISO 19095-3:2015(E)ii ISO 2015 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2015, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this
6、 publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the
7、 country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 19095-3:2015ISO 19095-3:2015(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Conditioning 14 Conditio
8、ns of the specimens 15 Test procedure 25.1 Tensile strength 25.1.1 Apparatus . 25.1.2 Specimens 25.1.3 Procedures 25.2 Tensile lap-shear strength . 35.2.1 Apparatus . 35.2.2 Test specimen . 45.2.3 Procedure . 45.2.4 Expression of results 45.3 Peel strength . 45.3.1 Apparatus . 45.3.2 Test specimens.
9、 65.3.3 Procedure . 65.3.4 Expression of results 65.4 Bending strength . 65.4.1 Apparatus . 65.4.2 Test specimens. 75.4.3 Procedure . 75.4.4 Expression of results 75.5 Impact strength 75.5.1 Apparatus . 75.5.2 Test specimens. 75.5.3 Procedure . 85.5.4 Calculation and expression of results 85.6 Seali
10、ng properties 85.6.1 Apparatus . 85.6.2 Test specimens. 85.6.3 Procedure . 85.6.4 Expression of results 86 Test report . 86.1 Tensile strength 86.2 Tensile lap-shear strength . 86.3 Peel strength . 86.4 Bending strength . 96.5 Impact strength 96.6 Sealing properties 9Annex A (normative) Spray method
11、 of sealing properties .10Annex B (normative) Bell jar method of sealing properties .12Bibliography .15 ISO 2015 All rights reserved iiiContents PageBS ISO 19095-3:2015ISO 19095-3:2015(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards
12、bodies (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 organizat
13、ions, 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.The procedures used to develop this document and those intended for its furth
14、er maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directive
15、s).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. Details of any patent rights identified during the development of the document will be in the Intr
16、oduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to c
17、onformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 61, Plastics, Subcommittee SC 11, Products.ISO 19095 consi
18、sts of the following parts, under the general title Plastics Evaluation of the adhesion interface performance in plastic-metal assemblies: Part 1: Guidelines for the approach Part 2: Test specimens Part 3: Test methods Part 4: Environmental conditions for durabilityiv ISO 2015 All rights reservedBS
19、ISO 19095-3:2015ISO 19095-3:2015(E)IntroductionStructures of heterogeneous materials are being manufactured in the automobiles and aerospace industry sectors where higher safety margins are required.The existing test methods are not appropriate because the evaluation of the adhesion performance of p
20、lastic-metal assemblies is difficult as the polymer material has a relatively low mechanical strength and therefore fractures outside the joints. Therefore, it is necessary to develop a methodology for the evaluation of the plastic-metal interface performance.A test method to evaluate accurately the
21、 adhesion interface performance or standardization of long-term evaluation under harsh environments is also necessary.The method in ISO 19095 is intended to ensure the integrity of the interface is realized through the interface and that traceability of the value improves the data comparison.This pa
22、rt of ISO 19095 defines the test conditions, quoting test methods related to mechanical properties that can be evaluated by the existing ISO standards and also adding other test methods that are supposed to be needed. ISO 2015 All rights reserved vBS ISO 19095-3:2015BS ISO 19095-3:2015Plastics Evalu
23、ation of the adhesion interface performance in plastic-metal assemblies Part 3: Test methodsSAFETY STATEMENT Persons using this this part of ISO 19095 should be familiar with normal laboratory practice, if applicable. This part of ISO 19095 does not purport to address all of the safety problems, if
24、any, associated with its use. It is the responsibility of the user to establish appropriate safety and health practices and to ensure compliance with any regulatory conditions. It is recognized that some of the materials permitted in this part of ISO 19095 might have a negative environmental impact.
25、 As technological advances lead to more acceptable alternatives for such materials, they will be eliminated to the greatest extent possible. At the end of the test, care should be taken to dispose of all waste in an appropriate manner in accordance with local regulations.1 ScopeThis part of ISO 1909
26、5 specifies the test methods for the adhesion interface performance in plastic-metal assemblies.2 Normative referencesThe 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
27、ies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 8256, Plastics Determination of tensile-impact strengthISO 14125, Fibre-reinforced plastic composites Determination of flexural propertiesISO 19095-1, Plastics Evaluation of the adhesion
28、 interface performance in plastic-metal assemblies Part 1: Guidelines for the approachISO 19095-2:2015, Plastics Evaluation of the adhesion interface performance in plastic-metal assemblies Part 2: Test specimensIEC 60068-2-17, Basic environmental testing procedures Part 2-17: Tests Test Q: Sealing3
29、 ConditioningSee ISO 19095-1.4 Conditions of the specimensThe specimens shall be free from twist and shall have mutually perpendicular pairs of parallel surfaces. The surfaces and edges shall be free from scratches, pits, sink marks, and flashes. The specimens shall be checked for conformity with th
30、ese requirements by visual observation against straight-edges, squares, and flat plates and by measuring with micrometre callipers. Specimens showing measurable or observable departure from one or more of these requirements shall be rejected or machined to the required size and shape before testing.
31、INTERNATIONAL STANDARD ISO 19095-3:2015(E) ISO 2015 All rights reserved 1BS ISO 19095-3:2015ISO 19095-3:2015(E)5 Test procedure5.1 Tensile strength5.1.1 ApparatusTensile test machine should be selected so that the rupture of the specimen falls between 10 % and 80 % of the full-scale capacity. The re
32、sponse time of the machine shall be short enough so as to enable the force applied at the time of rupture to be measured accurately. The recorded force shall not differ from the true applied force by more than 1 %. The machine shall be capable of maintaining the constant speeds at 10 mm/min (see 5.1
33、.3.2, 5.2.3.2, and 5.3.3). A machine which allows a constant rate of load application may be used. In this case, the machine shall be capable of maintaining a rate of loading of 8,3 MPa/min to 9,7 MPa/min. The machine shall be provided with a suitable pair of self-aligning grips to hold the specimen
34、. The grips and attachments shall be constructed so that they move into alignment with the specimen as soon as the load is applied so that the long axis of the specimen will coincide with the direction of the applied force through the centerline of the grip assembly.5.1.2 SpecimensSee ISO 19095-2:20
35、15, 4.1.5.1.3 Procedures5.1.3.1 Test atmosphereConduct the test in the same atmosphere used for conditioning the test specimen, unless otherwise agreed upon by the interested parties, for example, for testing at elevated or low temperatures.5.1.3.2 Test speed and set up specimensCrosshead speed is 1
36、0 mm/min, unless otherwise noted. Distance between the grips shall be 50 mm and the distance above and below the joint surface shall be 25 mm.NOTE As a result of tests at several different crosshead speeds from 0,5 mm/min to 50 mm/min, tensile strength does not depend on the crosshead speed, however
37、, 10 mm/min is the most suitable in order to inhibit the variability of data.5.1.3.3 Expression of resultsIn test report, breaking stress is expressed as the average value in MPa about valid specimens. Tensile strength (MPa) is calculated by dividing breaking load (N) by joint area (mm2). Breaking s
38、tress is calculated using Formula (1).BBjFA= (1)whereBis breaking stress (MPa);FBis breaking load (N);Ajis joint area (mm2).2 ISO 2015 All rights reservedBS ISO 19095-3:2015ISO 19095-3:2015(E)5.2 Tensile lap-shear strength5.2.1 Apparatus5.2.1.1 Tensile testing machineSee 5.1.1.5.2.1.2 Specimen retai
39、nerOne example of specimen retainer is shown in Figure 1. This retainer shall be fixed in such a way that the fixture attached to the test apparatus and the load line at grips on the specimen lie on a straight.Key1 specimen2 retainer3 bolt for fixation4 connecting pin5 the fixture attached to the te
40、st apparatus6 cover of retainer7 base of retainerFigure 1 One example of specimen retainerThe cover (key 6) and the base (key 7) of the specimen retainer which are bolted together to grip the metal portion of the specimen to be tested shall have a gap within 0,1 mm larger than the specimen along bot
41、h the width and length of the metal portion of the specimen to keep any friction from tainting the test results. ISO 2015 All rights reserved 3BS ISO 19095-3:2015ISO 19095-3:2015(E)However, the part of the specimen retainer which grips the plastic part of the specimen to be tested shall have a gap l
42、ess than 0,1 mm along both the width and length of the plastic.NOTE When carrying out a tensile test holding both edge of the specimen, lap-shear strength could not be measured precisely because the resin part breaks first if the joint strength is too great. If using the retainer, it is possible to
43、put shear stress around the joint interface directly.5.2.2 Test specimenSee ISO 19095-2:2015, 4.2.5.2.3 Procedure5.2.3.1 GeneralAs shown, place the test specimen in the test retainer, taking care to align the planes of loading in Figure 1, and record the maximum load before breaking by the test mach
44、ine.5.2.3.2 Test speed and width of grips of metal partCrosshead speed is 10 mm/min unless otherwise noted. Width of gripping of metal part shall be less than 15 mm from the top of the metal specimen.NOTE As a result of tests at several different crosshead speeds from 1 mm/min to 50 mm/min, tensile
45、strength does not depend on the crosshead speed, however, 10 mm/min is the most suitable in order to make test time shorter and inhibit the variability of data.5.2.4 Expression of resultsIn test report, breaking load is expressed as N or breaking stress is expressed as the average value in MPa about
46、 valid specimens. Shear stress (MPa) is calculated by dividing breaking load (N) by joint area mm2. Breaking stress is calculated using Formula (2).BBjFA= (2)whereBis breaking stress (MPa);FBis breaking load (N);Ajis joint area (mm2).5.3 Peel strength5.3.1 Apparatus5.3.1.1 Tensile test machineSee 5.
47、1.1.5.3.1.2 Test fixturePeel test fixture is shown in Figure 2. The fixture shall be attached to one of the cross-arms of the testing machine (5.1). The 25 mm rollers on the test fixture shall roll freely. The angle determined by the rollers and the use of dual bearings are critical and the rollers
48、shall therefore be carefully maintained.4 ISO 2015 All rights reservedBS ISO 19095-3:2015ISO 19095-3:2015(E)Dimensions in millimetresKey1 plastic specimen2 flexible metal specimen3 peeling zone4 dual roller bearing type5 mild steelFigure 2 Peel test fixtureNOTE See the same fixtures for ISO 4578. IS
49、O 2015 All rights reserved 5BS ISO 19095-3:2015ISO 19095-3:2015(E)5.3.2 Test specimensSee ISO 19095-2:2015, 4.3.5.3.3 ProcedureInsert the test specimen into the peel fixture, with the unbounded end of the flexible adherend gripped in the free jaw of the testing machine. Peel the specimen at a constant crosshead separation rate of 100 mm/min 5 mm/min, unless otherwise specified.During the peel test, make an autographic recording of force versus crosshead movement (i.e. force versus distance peeled) over
