1、AECMA STANDARD NORME AECMA AECMA NORM Edition approved for publication 31 August 2004 prEN 2002-1 Edition P 3 August 2004 Comments should be sent within six months after the date of publication to AECMA-STAN ICs: Descriptors: ENGLISH VERSION Aerospace series Metallic materials Test methods Part 1: T
2、ensile testing at ambient temperature Supersedes edition P 2 March 1996 Srie arospatiale Luft- und Raumfahrt Matriaux mtalliques Metallische Werkstoffe Mthodes dessais applicables Prfverfahren Partie 1 : Essais de traction temprature ambiante Teil 1 : Zugversuch bei Raumtemperatur This “Aerospace Se
3、ries“ frestandard has been drawn up under the responsibility of AECMA-STAN (The European Association of Aerospace Industries - Standardization). It is published for the needs of the European Aerospace Industry. It has been technically approved by the experts of the concerned Domain following member
4、comments. Subsequent to the publication of this frestandard, the technical content shall not be changed to an extent that interchangeabilify is affected, physically or functionally, without re-identification of the standard. After examination and review by users and formal agreement of AECMA-STAN, i
5、t will be submitted as a draft European Standard (prEN) to CEN (European Committee for Standardization) for formal vote and transformation to full European Standard (EN). The CEN national members have then to implement the EN at national level by giving the EN the status of a national standard and b
6、y withdrawing any national standards conflicting with the EN. Metallic Material Domain I I Copytight 2004 O by AECMA-STA1 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without li
7、cense from IHS-,-,-Page 2 prEN 2002-1 :2004 Foreword This standard was reviewed by the Domain Technical Coordinator of AECMA-STANS Metallic Material Domain. After inquiries and votes carried out in accordance with the rules of AECMA-STAN defined in AECMA- STANS General Process Manual, this standard
8、has received approval for Publication. Contents O Introduction . 1 Scope 2 References 3 Definitions . 4 Health and safety . 5 Principle . 6 Testing requirements . 7 Test report . Annex A (normative) Annex B (normative) Annex C (normative) Annex D (normative) Types of test piece to be used for sheet
9、and strip with thickness less than 8 mm Types of non-machined test piece to be used in the case of bar, section and wire with a diameter or thickness less than Types of machined test piece to be used in the case of bar, section, plate and wire with diameter or thickness greater than 8 mm and for for
10、gings and castings . Types of test piece to be used in the case of tubes or equal to 8 mm Page 3 3 3 3 6 6 6 11 13 15 16 19 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without
11、license from IHS-,-,-Page 3 prEN 2002-1 :2004 O I nt rod u cti o n This standard is part of the series of EN metallic material standards for aerospace applications. The general organization of this series is described in EN 4258. 1 Scope This standard specifies the requirements for the tensile testi
12、ng of metallic materials at ambient temperature for aerospace applications. It shall be applied when referred to in the EN technical specification or material standard unless otherwise specified on the drawing, order or inspection schedule. 2 References This European Standard incorporates by dated o
13、r undated reference provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of the publications apply to this European Standard only wh
14、en incorporated in it by amendments or revision. For undated references the latest edition of the publication referred to applies. 2.1 Normative references EN 4258, Aerospace series - Metallic materials - General organization of standardization - Links between types of EN standards and their use EN
15、4259, Aerospace series - Metallic materials - Definition of general terms 1) EN IS0 7500-1, Metallic materials - Verification of static uniaxial testing machines - Part 1 : Tension/ compression testing machines - Verification and calibration of the force-measuring system EN IS0 9513, Metallic materi
16、als - Calibration of extensometers used in uniaxial testing 2.2 Informative references ASTM E-I O1 2, Standard practice for verification of specimen alignment under tensile loading 2) 3 Definitions For the purposes of this standard, the following definitions apply: 3.1 General terms See EN 4259. 1)
17、Published as AECMA Prestandard at the date of publication of this standard 2) This standard is published by: American Society for Testing and Materials (ASTM), 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, USA Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provi
18、ded by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 4 prEN 2002-1 :2004 3.2 Other terms Other terms are given in Table 1 Table 1 - Definitions - Other terms - Unit - Symbol Term Definition Test piece The portion of the test sampl
19、e on which the tensile test is carried out Proportional test pieces A test piece with an original gauge length (Lo) having a specified relationship to the square root of the cross- sectional area (So). The proportionality coefficient, K, has the internationally recognised value of 5,65 for test piec
20、es of circular cross-section. The gauge length of a proportional test piece is therefore equal to 5,65 - a length at least equal to that of the grips and may project beyond the grips for a maximum length - a shape that shall have no effect on the deformation of the gauge length. equal to the externa
21、l diameter of the tube; Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 7 prEN 2002-1 :2004 Type of product Sheet and strip 6.1.2 Materialdreagent
22、s Materialdreagents may include suitable: - degreasing fluids; - recording paper; - means of electronic recording, if appropriate; - marking inks. Corresponding annex A 6.1.3 Qualification of personnel Testing to the requirements of this test method shall only be undertaken and/or supervised by pers
23、onnel who have demonstrated their competence by a suitable education or appropriate training and experience. Such competence shall be documented in an appropriate form. Bar, section and wire of diameter or thickness I g8mm 6.2 Test samples/test pieces B 6.2.1 Shape and dimensions The shape and dimen
24、sions of the test piece depend on the shape and dimensions of the metallic product and the mechanical properties which are to be determined. Where sufficient material is available the test piece shall be obtained by machining a sample from the product in accordance with Annex A, C or D. However, pro
25、duct of constant cross-section (section, bar and wire in accordance with Annex B) may be subjected to test without being machined. A machined test piece shall incorporate a transition radius between the gripped ends and the parallel length if these have different dimensions. The dimensions and toler
26、ances and the transition radius of a test piece shall be in accordance with the appropriate annex (see 6.2.2). The gripped ends may be of any shape to suit the grips of the testing machine (see 6.3.3). The parallel length (L,) or, in the case where the test piece has no transition radius, the free l
27、ength between the grips, shall always be greater than the original gauge length (Lo). Bar, section, plate and wire of diameter or thickness 8 mm and for forgings and castings Tubes 6.2.2 Types The main types of test piece are given in Annexes A to D according to the shape and type of product as show
28、n in Table 2. C D Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 8 prEN 2002-1 :2004 6.2.3 Preparation of test pieces Machining, if required, sha
29、ll be carried out at ambient temperature in accordance with a machining procedure. Precautions shall be taken to minimize superficial cold working, appreciable heating of the part or surface irregularities that could affect the results of the test. The surface finish of the parallel length shall hav
30、e a Ra value not exceeding 0,8 pm. In the case of material with an elongation specified in the material standard to be less than 10 %, tensile test pieces of other than circular cross-section shall have the edges along the parallel length and the transition radii slightly rounded and lengthwise poli
31、shed. The reduction of the cross-sectional area by this treatment shall be negligible. The test piece shall be protected from damage or contamination until the start of the test. 6.3 Testing procedure 6.3.1 6.3.1 .I The original cross-sectional area shall be calculated from measurement of the approp
32、riate dimensions, with an accuracy of 0,2 % or 0,005 mm, whichever the greater value, for each dimension. In the case of a length of tube, the original cross-sectional area (So) shall be calculated as follows: Determination of the cross-sectional area (So) Determination of the original cross-section
33、al area (So) So=na(D-a) When using test piece consisting of a longitudinal strip cut from a tube, the original cross-sectional area shall be calculated according to one of the following equations: 6D (D - 2a) b D When 0,17 d r ri Figure C.2 - Test piece with annular ridges Copyright Association Euro
34、peene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 19 prEN 2002-1 :2004 Annex D (normative) Types of test piece to be used in the case of tubes D.l The test piece consists eit
35、her of a length of tube or a longitudinal strip cut from the tube and having the full thickness of the wall of the tube, or of a test piece of circular-cross-section machined from the wall of the tube (see Figures D.l and D.2). Shape of the test piece D.2 Machined longitudinal test pieces are descri
36、bed in: Dimensions and tolerances of the test piece a) Annex A for tube of wall thickness less than or equal to 8 mm; b) Annex C for tube of wall thickness greater than 8 mm. A test piece consisting of a length of tube shall conform to Annex B. Where a tube is fitted with plugs to assist gripping, t
37、he free length between a plug and the closest gauge mark shall be greater than D/4. Figure D.l - Test pieces comprising a length of tube before and after fracture I- -1 Figure D.2 - Example for test piece cut from a tube before and after fracture Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
