1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58bonds between rigid substrates by the block-shear methodThe European Standard EN ISO 13445:2006 has
2、 the status of a British StandardICS 83.180Adhesives Determination of shear strength of adhesive BRITISH STANDARDBS EN ISO 13445:2006BS EN ISO 13445:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 August 2006 BSI 2006ISBN 0 580 48924 8
3、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 Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Stand
4、ards 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 Standard does not of itself confer immunity from legal obligations.Summary of pagesThis document comprises a front cover,
5、an inside front cover, the EN ISO title page, the EN ISO foreword page, the ISO title page, pages ii to iv, pages 1 to 5 and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsA list of
6、 organizations represented on this committee can be obtained on request to its secretary.Cross-referencesenquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK.National forewordTh
7、is British Standard is the official English language version of EN ISO 13445:2006. It is identical with ISO 13445:2003.The UK participation in its preparation was entrusted to Technical Committee PRI/52, Adhesives, which has the responsibility to: aid enquirers to understand the text; present to the
8、 responsible international/European committee any EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 13445June 2006ICS 83.180English VersionAdhesives - Determination of shear strength of adhesive bondsbetween rigid substrates by the block-shear method (ISO13445:2003)Adhsifs - Dtermination de la r
9、sistance au cisaillementde joints colls entre lments rigides par la mthode decisaillement entre blocs massifs (ISO 13445:2003)Klebstoffe - Bestimmung der Scherfestigkeit vonKlebungen zwischen starren Werkstoffen nach demBlockscherverfahren (ISO 13445:2003)This European Standard was approved by CEN o
10、n 25 May 2006.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-to-date lists and bibliographical references concerning such nationalstandards may be o
11、btained 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 translationunder the responsibility of a CEN member into its own language and notified to the Central Sec
12、retariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Port
13、ugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of exploitation in any form and by any means re
14、servedworldwide for CEN national Members.Ref. No. EN ISO 13445:2006: EForeword The text of ISO 13445:2003 has been prepared by Technical Committee ISO/TC 61 “Plastics” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 13445:2006 by Technical Committee CEN/
15、TC 193 “Adhesives“, the secretariat of which is held by AENOR. 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 December 2006, and conflicting national standards shall be withdrawn at the latest by
16、 December 2006. 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, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, I
17、taly, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Endorsement notice The text of ISO 13445:2003 has been approved by CEN as EN ISO 13445:2006 without any modifications. EN ISO 13445:2006Refer
18、ence numberISO 13445:2003(E)INTERNATIONAL STANDARD ISO13445Second edition2003-04-01Adhesives Determination of shear strength of adhesive bonds between rigid substrates by the block-shear method Adhsifs Dtermination de la rsistance au cisaillement de joints colls entre lments rigides par la mthode de
19、 cisaillement entre blocs massifs EN ISO 13445:2006ii iiiContents Page Foreword iv 1 Scope 1 2 Normative references . 1 3 Terms and definitions. 1 4 Principle . 2 5 Apparatus. 2 6 Test specimens . 3 7 Conditioning 4 8 Procedure. 4 9 Expression of results 4 10 Precision 4 11 Test report 4 EN ISO 1344
20、5:2006iv Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards 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
21、which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on al
22、l matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are
23、circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. 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 res
24、ponsible for identifying any or all such patent rights. ISO 13445 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 11, Products. This second edition cancels and replaces the first edition (ISO 13445:1995), which has been technically revised. EN ISO 13445:20061Adhesives Determ
25、ination of shear strength of adhesive bonds between rigid substrates by the block-shear method 1 Scope This International Standard specifies a method for the determination of the shear strength of adhesives used to bond materials with elastic moduli higher than the elastic modulus of the adhesive. T
26、he method provides an estimate of the shear strength of an adhesive on various machinable and non-machinable substrate materials. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. Fo
27、r undated references, the latest edition of the referenced document (including any amendments) applies. ISO 291:1997, Plastics Standard atmospheres for conditioning and testing ISO 7500-1:1), Metallic materials Verification of static uniaxial testing machines Part 1: Tension/ compression testing mac
28、hines Verification and calibration of the force-measuring system ISO 10365:1992, Adhesives Designation of main failure patterns EN 13887:2), Structural adhesives Guidelines for surface preparation of metals and plastics prior to adhesive bonding 3 Terms and definitions For the purposes of this docum
29、ent, the following terms and definitions apply. 3.1 shear stress force applied parallel to a flat adhesive joint, divided by the bond area of the joint 3.2 shear strength maximum shear stress sustained by an adhesive joint during a shear test 1) To be published. (Revision of ISO 7500-1:1999) 2) To b
30、e published. EN ISO 13445:20062 4 Principle Blocks, plates or discs are bonded together, and the maximum force required to shear them apart is determined. The method is particularly applicable to the testing of bonds between ceramic parts, glass parts, magnet mouldings and plastic parts having one f
31、lat face where machining would be difficult or impractical. 5 Apparatus 5.1 Tensile-testing machine, with a capacity of not less than 45 kN in tension. The machine shall conform to the requirements of ISO 7500-1. 5.2 Shearing fixture, consisting of a specimen-holding block and a shearing tool (see F
32、igures 1 and 2). Adherends measuring up to 80 mm 80 mm 13 mm can be held in the block, while the shearing tool can be used with adherends measuring up to 30 mm 30 mm 13 mm. A test specimen with adherends approximating to these dimensions is shown in Figure 3a). For test specimens having two smaller
33、adherends as shown in Figure 3b), an adapter plate can be inserted into the specimen-holding block (see Figure 4) to keep the shearing tool in its guides and to ensure the specimen is located under the clamp. Figure 1 Specimen-holding block Figure 2 Shearing tool EN ISO 13445:20063a) Plastic, metal,
34、 ceramic or wood to glass b) Plastic, metal, ceramic or wood to the same material or to one of the other materials Key a 75 mm 1 mm b 25 mm 0,2 mm c 13 mm 1 mm d 12 mm d 0,2 mm 13 mm e 6 mm for metals, 13 mm for others Figure 3 Typical specimens after assembly Figure 4 Adapter for small specimens of
35、 the size shown in Figure 3b) 6 Test specimens 6.1 Adherend sizes shall be as follows: a) metal blocks: 25 mm 25 mm 6 mm; b) glass plates: 75 mm 75 mm 13 mm; c) other materials: 25 mm 25 mm 13 mm. EN ISO 13445:20064 NOTE 1 Other adherend dimensions, within the limits of the shearing-fixture capacity
36、, may be used depending on the application, provided the specimens are thick enough to avoid deformation occurring. NOTE 2 This method is not applicable to thin adherends with which deformation of the specimen would occur. 6.2 Prepare the surface of the specimen in accordance with EN 13887. 6.3 Prep
37、are the adhesive and apply it in accordance with the adhesive manufacturers recommendations. Bond the adhesive-coated adherends in accordance with the procedure under investigation. Assemble straight-sided adherends such that the thrust surfaces of the specimen are parallel to within 5 m/mm. Determi
38、ne the thickness of the adhesive layer to within 0,02 mm using suitable equipment. 6.4 Remove immediately any excess adhesive squeezed out during assembly. Figure 3 shows typical specimens after bonding. 6.5 Test a minimum of five specimens. 7 Conditioning The specimens shall be conditioned and test
39、ed in one of the standard conditioning atmospheres specified in ISO 291. 8 Procedure 8.1 Mount the shearing fixture in the test machine with the specimen-holding block on top. 8.2 Place an assembled specimen in the shearing fixture in such a way that one of the adherends is held by the holding block
40、 and the other engaged by the shearing tool (see Figure 5). Centre the specimen in the shearing tool so that no turning moment is applied to the specimen during shearing. Close the toggle clamp on the rear of the specimen-holding block to keep the specimen (or adapter) located against the shearing t
41、ool. 8.3 Test the specimen using a crosshead speed of 1,5 mm/min. Record the maximum force sustained by the specimen. 8.4 Examine the adherends after the test to determine the failure pattern in accordance with ISO 10365. 8.5 Repeat the procedure for the remaining specimens. 9 Expression of results
42、Calculate the maximum shear stress for each specimen by dividing the maximum force by the bond area. Average the maximum shear stresses for all replicates to determine the average shear strength. Express the shear stress and shear strength in megapascals. 10 Precision The precision of this test meth
43、od is not known because interlaboratory data are not available. When inter-laboratory data are obtained, a precision statement will be added at the following revision. 11 Test report The test report shall include the following information: a) a reference to this International Standard; b) all detail
44、s necessary for complete identification of the adhesive tested, including type, source and manufacturers code number; EN ISO 13445:20065c) all details necessary for complete identification of the adherends used, including dimensions and orientation in the shearing fixture, conditioning of specimens,
45、 and the method of cleaning and preparing the surfaces prior to bonding; d) the quantity of adhesive applied and the bonding conditions used; e) the average thickness of the adhesive layer after formation of the bond, to within 0,02 mm, and the way in which the thickness was measured; f) the tempera
46、ture at which the test was performed; g) the number of specimens tested; h) the maximum shear stress for each specimen; i) the average shear strength; j) the failure-pattern designation for each specimen, in accordance with ISO 10365. Key 1 pinhole for mounting 2 specimen 3 adapter 4 shearing tool 5
47、 end for clamping 6 toggle clamp Figure 5 Side view of shearing fixture with specimen EN ISO 13445:2006BS EN ISO BSI389 Chiswick High RoadLondonW4 4AL13445:2006BSI British Standards InstitutionBSI is the independent national body responsible for preparing British Standards. It presents the UK view o
48、n standards in Europe and at the international level. It is incorporated by Royal Charter.RevisionsBritish Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest amendments or editions.It is the constant aim of BSI to improve the qual
49、ity of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel: +44 (0)20 8996 9000. Fax: +44 (0)20 8996 7400.BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards.Buy
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