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Description of ASTM-E2662 2009ASTM E2662 - 09Standard Practice for Radiologic Examination of Flat Panel Composites and Sandwich Core Materials Used in Aerospace ApplicationsActive Standard ASTM E2662 | Developed by Subcommittee: E07.01 Book of Standards Volume: 03.03 ASTM E2662Significance and Use Radiologic examination may be used during product and process design optimization, on line process control, after manufacture inspection, and in service inspection. In addition to verifying structural placement, radiologic examination can be used in the case of honeycomb core materials to detect node bonds, core-to-core splices, and core-to-structure splices. Radiologic examination is especially well suited for detecting sub-surface flaws. The general types of defects detected by radiologic examination include blown core, core corrosion, damaged filaments, density variation, entrapped fluid, fiber debonding, fiber misalignment, foreign material, fractures, inclusions, microcracks, node bond failure, porosity/voids, and thickness variation. Factors that influence image formation and X-ray attenuation in radiologic examination , and which are relevant to interpreting the images for the conditions of interest, should be included in the examination request. Examples are, but not limited to, the following: laminate (matrix and fiber) material, lay-up geometry, fiber volume fraction (flat panels); facing material, core material, facing stack sequence, core geometry (cell size); core density, facing void content, adhesive void content, and facing volume percent reinforcement (sandwich core materials); overall thickness, specimen alignment, specimen geometry relative to the beam (flat panels and sandwich core materials). 1. Scope 1.1 This practice is intended to be used as a supplement to Practices E 1742 , E 1255 , and E 2033 . 1.2 This practice describes procedures for radiologic examination of flat panel composites and sandwich core materials made entirely or in part from fiber-reinforced polymer matrix composites. Radiologic examination is: a ) radiographic (RT) with film, b ) Computed Radiography (CR) with Imaging Plate, c ) Digital Radiology (DR) with Digital Detector Array s (DDA), and d ) Radioscopic (RTR) Real Time Radiology with a detection system such as an Image Intensifier. The composite materials under consideration typically contain continuous high modulus fibers (> 20 GPa), such as those listed in 1.4. 1.3 This practice describes established radiological examination methods that are currently used by industry that have demonstrated utility in quality assurance of flat panel composites and sandwich core materials during product process design and optimization, process control, after manufacture inspection, in service examination, and health monitoring. 1.4 This practice has utility for examination of flat panel composites and sandwich constructions containing but not limited to bismaleimide, epoxy, phenolic, poly(amide imide), polybenzimidazole, polyester (thermosetting and thermoplastic), poly(ether ether ketone), poly(ether imide), polyimide (thermosetting and thermoplastic), poly(phenylene sulfide), or polysulfone matrices; and alumina, aramid, boron, carbon, glass, quartz, or silicon carbide fibers. Typical as-fabricated geometries include uniaxial, cross ply and angle ply laminates; as well as honeycomb core sandwich constructions. 1.5 This practice does not specify accept-reject criteria and is not intended to be used as a means for approving flat panel composites or sandwich core materials for service. 1.6 To ensure proper use of the referenced standards, there are recognized nondestructive testing (NDT) specialists that are certified according to industry and company NDT specifications. It is recommended that a NDT specialist be a part of any composite component design, quality assurance, in service maintenance or damage examination. 1.7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
ASTM Standards C274 Terminology of Structural Sandwich Constructions D1434 Test Method for Determining Gas Permeability Characteristics of Plastic Film and Sheeting D3878 Terminology for Composite Materials E94 Guide for Radiographic Examination E543 Specification for Agencies Performing Nondestructive Testing E747 Practice for Design, Manufacture and Material Grouping Classification of Wire Image Quality Indicators (IQI) Used for Radiology E1000 Guide for Radioscopy E1025 Practice for Design, Manufacture, and Material Grouping Classification of Hole-Type Image Quality Indicators (IQI) Used for Radiology E1165 Test Method for Measurement of Focal Spots of Industrial X-Ray Tubes by Pinhole Imaging E1255 Practice for Radioscopy E1309 Guide for Identification of Fiber-Reinforced Polymer-Matrix Composite Materials in Databases E1316 Terminology for Nondestructive Examinations E1471 Guide for Identification of Fibers, Fillers, and Core Materials in Computerized Material Property Databases E1742 Practice for Radiographic Examination E1815 Test Method for Classification of Film Systems for Industrial Radiography E1817 Practice for Controlling Quality of Radiological Examination by Using Representative Quality Indicators (RQIs) E2007 Guide for Computed Radiography E2033 Practice for Computed Radiology (Photostimulable Luminescence Method) E2446 Practice for Classification of Computed Radiology Systems E2597 Practice for Manufacturing Characterization of Digital Detector Arrays 2.2 National Council on Radiation Protection and Measurement (NCRP) Documents NCRP144 Radiation Protection for Particle Accelerator FacilitiesFederal Standards 29CFR1910.1096 Ionizing Radiation (X-rays, RF, etc.)2.4tAerospace Industries Association Document Keywords aerospace composites, Computed Radiology (CR); digital detector array (DDA); digital radiology (DR); fiber-reinforced polymer matrix composites; flat panels; high modulus fibers; high performance composites; honeycomb core; laminates; nondestructive evaluation (NDE); nondestructive inspection (NDI); nondestructive testing (NDT); polymeric matrix composites (PMC); radiography (RT); radioscopy (RTR); sandwich core materials; sandwich constructions; structural sandwich constructions; ICS Code ICS Number Code 49.035 (Components for aerospace construction) DOI: 10.1520/E2662-09 ASTM International is a member of CrossRef. ASTM E2662The following editions for this book are also available...This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
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About ASTMASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide. |
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