1、 AECMA STANDARD prEN 2243-6 NORME AECMA Edition P 2 AECMA NORM December 2001 PUBLISHED BY THE EUROPEAN ASSOCIATION OF AEROSPACE INDUSTRIES - STANDARDIZATION (AECMA-STAN) Gulledelle 94 - 8-1200 BRUXELLES -Tel. (+32) 2 775 81 10 - Fax. (+32) 2 775 81 11 Edition approved for publication Comments should
2、 be sent within six months after the date of publication to 2001-1 2-28 AECMA-STAN Gulledelle 94 B-1200 BRUXELLES ICs: 49.060 Descriptors: Material Domain Mr Pays Supersedes edition P 1 September 1996 ENGLISH VERSION Aerospace series Non-metallic materials Structural adhesives Test method Part 6: De
3、termination of shear stress and shear strain Srie arospatiale Matriaux non-mtalliques Systme dadhsifs structuraux Mthodes dessai Partie 6: Dtermination de la contraint et de la dformation de cisaillement Lut- und Raumfahrt Nichtmetallische Werkstoffe Strukturelle Klebstoffsysteme Prfverfahren und Gl
4、eitung Teil 6: Bestimmung der Schubspannu g This Xerospace Series“ Prestandard has been drawn up under the responsibility of AECMA-STAN (The European Association of Aerospace Industries - Standardization). It is published on green paper for the needs of the European Aerospace Industry. It has been t
5、echnically approved by the experts of the concerned Domain following member comments. Subsequent to the publication of this Prestandard, the technical content shall not be changed to an extent that interchangeability is affected, physically or functionally, without re-identification of the standard.
6、 After examination and review by users and formal agrement of AECMA-STAN it will be submitted as a draft European Standard to CEN (European Committee for Standardization) for formal vote. Page 2 prEN 2243-6: 2001 Contents Page O 1 2 3 3.1 3.2 4 5 6 6.1 6.2 6.3 7 7.1 7.2 7.3 7.4 7.5 7.6 7.7 8 8.1 8.2
7、 8.3 8.4 9 9.1 9.2 9.3 9.4 9.5 IO 11 . Normative references . . Definitions. symbols and abbreviations . Symbols and abbreviations . Principle/Technique . Definitions . . . . Qualification of personnel Test samples/Test pieces Materials . Surface preparation before bonding . . . Testing procedure .
8、. Expression of results . Shear displacement . . . Elastic shear modulus Designation 3 3 3 3 3 3 4 4 4 4 4 4 5 5 5 5 5 5 5 5 6 6 6 6 6 7 7 7 7 7 7 7 a Page 3 prEN 2243-6: 2001 O Introduction This standard is part of the series of EN non-metallic material standards for aerospace applications. The gen
9、eral organisation of this series is described in EN 4385. This standard is a level 3 document as defined in EN 4385. 1 Scope This standard defines the general requirements for the determination of shear stress and shear strain behaviour of structural adhesives by testing in tension metal to metal la
10、p joints, at ambient or other temperatures. This method can also be used to investigate the influence of environmental exposures on structural ad hesives. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative ref
11、erences are cited at the appropriate places in the next and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references th
12、e latest edition of the publication referred to applies. IS0 7500-1 Metallic materials - Verification of static uniaxial testing machines - Part 1: Tensionkompression testing machines - Verification and calibration of the force-measuring system Structural adhesives - Test methods - Part 1 - Single l
13、ap shear - Aerospace series 1) Aerospace series - Chromic-sulphuric acid pickle of aluminium and aluminium alloys Aerospace series - Aluminium alloy AL-P2024- - T351 - Plate - 6 mm I I I I I I I I I I I I l I I I I I I I l I I I I I l l l l I I I Key d Total shear displacement measured da Actual she
14、ar displacement of the adhesive material only t Thickness of the adhesive layer le Gauge distance y Angle of measured shear strain ya Angle of actual shear strain Figure 4 - Shear displacement Page 13 prEN 2243-6: 2001 0 10 20 30 40 60 80 100 120 140 (%I I I l I I I I I l I 40 20 O I I r I I I I I I I I O 0,l 0.2 0.3 0.4 0,s 0,6 0,7 0,8 0,9 1.0 2 Key 1 2 3 zf, yf (failure) Shear stress z (in megapaccals) Angle of measured shear strain y (in radians) Figure 5 - Example of shear strecslshear strain diagram
