1、STD-AECMA PREN 2002-23-ENGL 1991 9 LOL23LL 0035073 802 A. E .C. M .A. STAN DARD prEN 2002 NORME A.E.C.M.A. A.E.C.M.A. NORM Partie 23 Issue P 1 May 1991 EDITE PAR LASSOCIATION EUROPENNE DES CONSTRUCTEURS DE MATRIEL AROSPATIAL 88, boulevard Malesherbes, 75008 PARIS - TEL. 45-63-82-85 UDC : ENGLISH VER
2、SION Aerospace series Test methods for metallic materials Part 23 - Sharp-notch tension testing Srie arospatiale Mthodes dessais applicables aux matriaux mtalliques Partie 23 - Essai de traction sur prouvette entaille Luft- und Raumfahrt Prfverfahren fr metallische Werkstoffe Teil 23 - Zugprfung an
3、Spitzkerproben This .Aerospace Series. pie-standard has been drawn up under the responsibility of AECMA (Association Europenne des Constructeurs de Matriel Arospatial). It is published on green paper for the needs of AECMA-Members. It has been technically approved by the experts of the concerned Com
4、mission following comment by the Member countries. Subsequent to the publication of this pie-standard, the technical content shall not be changed to an extent that interchangeability is affected, ph ysically or functionally, without re-identification of the standard. After examination and signature
5、of the AECMA Standard Checking Centre (NPS) and formal agreement of the Official Services of the Member countries it will be submitted as a draft European Standard to CEN (European Committee for Standardization) for final vote. I Nata - Extra copier can be supplied by B N A E - Technopolis 54 - 199,
6、 rue Jean-Jacques Rouiseau - 92138 ISSY LES MOULINEAUX CEDEX I Edition approved for publication I Comments should be sent within six months I C5 Chairman 1991 -05-31 after the date of publication decision AECMA 88, Bd Malesherbes 75008 PARIS - FRANCE Mr. ODORICO I , I aecma 1991 prEh 2002-23 Page 3
7、1 Scope and field of application This standard specifies methods to measure the resistance to unstable fracture originating from cracks or crack-like stress concentrators. The methods are intended for specifications of acceptance and manufacturing quality control when there is a sound basis for esta
8、blishing a minimum acceptable sharp-notch strength. These methods are restricted to such material where a sharp notch can be machined to a radius of 0,018 mm or less. 2 References EN 2002-1 Aerospace series - Test methods for metallic materials - Part 1 - Tensile testing at ambient temperature i) EN
9、 2002-2 Aerospace series - Test methods for metallic materials - Part 2 - Tensile testing at elevated temperature 1) EN 2002-22 Aerospace series - Test methods for metallic materials - Part 22 - Standard test method for plane-strain fracture toughness 3) EN 10002-2 Aerospace series - Metallic materi
10、als - Tensile testing - Part 2 - Verification of the force measuring system of the tensile machines 3) ASTM E 338-81 Standard method of sharp-notch tension testing of high-strength sheet materials 4) ASTM E 602-81 Standard method for sharp-notch tension testing with cylindrical specimens 4) 1) Publi
11、shed as AECMA pre-standard at the date of publication of the present standard. 2) Published as AECMA Standard at the date of publication of the present standard. 3) In preparation at the date of publication of the present standard. 4) This standard is published by American Society for Testing and Ma
12、terials (ASTM) - 1916 Race St. Philadelphia PA 19103 Previous page is blank - - - - _ -7 _- - , STD-AECMA PREN 2002-23-ENGL 1991 = 1012311 0015075 b85 D prEN 2002-23 Page 4 3 Methods Application of ASTM E 338-81 or ASTM E 602-81 shall be mandatory with the following details and changes : - For sheet
13、 and plate equal to or greater than 0,6 mm but less than or equal to 12,s nun in thickness, ASTM E 338-81 with the changes mentioned below shall be used, - For material greater than 12,s mm in thickness, ASTM E 602-81 with the changes mentioned below, shall be used : . References to ASTM E 399 shall
14、 be substituted with references to EN 2002-22. . References to ASTM E 4 shall be substituted with references to EN 10002-2. . References to ASTM E 8 or ASTM B 557 shall be substituted with references to EN 2002-1 or EN 2002-2, whichever is applicable. The wording of note 2, clause 1.4 in ASTM E 338-
15、81 and in clause 1.6 in ASTM E 602-81 shall be : “The values stated in S.1.-units are to be regarded as the standard“. References to ASTM E 338 or ASTM E 602 shall be substituted with references to this standard. 4 Test results The results of the test shall meet the requirements of the relevant material standard.
