ISO INTERNATIONAL STANDARD 21347 First edition 2005-05-01 Space systems Fracture and damage control Systemes spatiaux Maitrise des fissurations et des dommages Reference number ISO 21347:2005(E) Copyright International Organization for Standardization @ISO2005 itted without license from IHS Not for Resale ISO 21347:2005(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In accepts no liability in this area. Adobe is a trademarkof AdobeSystems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below ?ISO2005 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, IsO's member body in the country of the requester. ISO copyright office Case postale 56 . CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland yemainagazainandardizato @ISO2005-All rights reserved mittedwithoutlicense from IHS Not for Resale ISO 21347:2005(E) Contents Page Foreword Introduction 1 Scope 2 Normative references. 3 Terms and definitions 4 Symbolsandabbreviatedterms.... ..6 5 Fracture and mechanical damage control requirements.... 5.1 Fracture control requirements .... 5.2 Mechanical damage control requirements .10 5.3 Non-destructive evaluation (NDE)... 5.4 Other special requirements .. .12 Annex A (informative) Fracture control implementation guidelines ..14 Annex B (informative) Guidelines for mechanical damage control of coPV.. .19 Copyrght International Organizaionforstandardizaon'ghts reserved ii ut license from IHS Not for Resale ISO 21347:2005(E) 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 International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are 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 responsible for identifying any or all such patent rights. ISO 21347 was prepared by Technical Committee ISO/TC 20, Aircraft and space vehicles, Subcommittee SC 14, Space systems and operations. ional Organization for Standardizatior ISO2005-All rightsreserved Not for Resale ISO 21347:2005(E) Introduction prevent premature structural failure dueto thepropagation of cracks or crack-like defects during a and military space vehicles, launch systems, and their related ground support equipment. For manned space requirement. For example, the National Aeronautics and Space Administration (NASA) and the European equipment items installed on the International Space Station (Iss). These systems have established specific fracture control requirements. These requirements are being implemented on all the payloads and equipment items using the Shuttle and Iss. Recently, many procurement agencies and range safety authorities have imposed fracture econtrol and high-pressure gas bottles used in unmanned spacecraft in order to prevent loss of l