Voluntary Consensus Organization Standards for Nondestructive Evaluation of Aerospace Materials (including Additive Manufactured Parts)

Metadata Updated: July 17, 2020

This NASA-industry effort accomplishes the following:1) Lead collaboration between NASA Centers, other government agencies, industry, academia, and voluntary census organizations (ASTM Committees E07 on Nondestructive Testing, F42 on Additive Manufacturing (AM) Technologies, and ISO Technical Committee (TC) 261) to develop national standards for NDE of aerospace materials used in NASA/aerospace applications.2)[HTML_REMOVED]Lead a leveraged interlaboratory study (ILS) to develop NDE for qualification and certification of AM parts.3)[HTML_REMOVED]Lead ASTM E07 development and periodic revision of flat panel polymer matrix composite (PMC) standards: ASTM E2533 (Guide) [1], E2580 (ultrasonic testing (UT) [2], E2581 (shearography) [3], E2582 (flash thermography) [4], E2661 (acoustic emission) [5], E2662 (radiographic testing (RT)) [6], and draft work item WK40707 (active thermography).4) Lead periodic revision of composite overwrapped pressure vessel (COPV) standards: E2981 (overwrap) [7] and ASTM E2982 (liner) [8].5) Develop a new NDE of AM Guide (ASTM WK47031) [9].6)[HTML_REMOVED]Develop a new eddy current test (ECT)-UT-profilometer standard practice or test method for fracture control of metal parts using 90/95 Probability of Detection (POD) of critical initial flaws sizes in metal parts (TBD).7)[HTML_REMOVED]Respond to NASA Office of Safety and Mission Assurance (OSMA) and NASA Space Technology Mission Directorate (STMD) requests as needed (e.g., AM, advanced manufacturing, counterfeit parts and ESA/JAXA collaboration).The historical standards development time line (Items 3 through 6) is shown in Figure 1. The WK47031 effort (Item 5) constitutes the bulk of the present focus and capitalizes on momentum created by the release of the FY14 Nondestructive Evaluation of Additive Manufacturing State-of-the-Discipline Report (NASA-TM-218560) [10]. The ultimate goal vis-[HTML_REMOVED]-vis WK47031 is to determine the effect-of-defect of specific seeded flaw types while determining detection thresholds using controlled embedded features. A portion of this effort also dovetails with the NASA Engineering and Safety Center (NESC) Universal ECT-UT-Profilometer Scanner project. Background:[HTML_REMOVED] One of the main obstacles slowing the acceptance and use of advanced materials (e.g., PMCs, COPVs and AM parts) in NASA and commercial space applications is the lack of a broadly accepted materials and process quality systems, including sensitive NDE procedures with well-defined accept-reject criteria. Matching VCO standards are also needed to ensure process and equipment control, finished part quality and consistent inspection methodologies for finished parts after manufacturing and after installation of parts in service. In AM, the possibility to [HTML_REMOVED]design to constraint[HTML_REMOVED] offers a paradigm shift opening the door to make parts with shorter production lead times, less waste, improved cost, maximized properties, and reduced weight.[HTML_REMOVED] However, to fully realize the merits of this and other advanced processing technologies, and to ensure parts of the highest quality end up in NASA/aerospace applications, new approaches to for in-situ monitoring NDE used during manufacturing, post-process NDE used on as-build and finished parts are needed. In AM, for example, NDE procedures must be able to detect flaw types (Figure 2), many of which are not found in cast, wrought or conventionally welded parts (Figure 3). Deeply embedded porosity, complex part geometry, and intricate internal features (e.g., lattice structures) impose additional challenges on conventional NDE.[HTML_REMOVED]Technical Approach: [HTML_REMOVED]In the WK47031 effort (Figure 4), a NASA-led interlaboratory study (ILS) is currently being conducted to identify and refine NDE for inspection of AM aerospace parts. This effort is spread across g

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Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Created Date August 1, 2018
Metadata Updated Date July 17, 2020

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Harvested from NASA Data.json

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Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date July 17, 2020
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_88195
Maintainer Email
Public Access Level public
Bureau Code 026:00
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Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
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Harvest Object Id 271c4552-164f-42dd-9959-661ab91be25c
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2018-06-26
Homepage URL https://techport.nasa.gov/view/88195
Data Last Modified 2020-01-29
Program Code 026:027
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Source Hash a92f605075aa348645cdcbf667474186bf1b2193
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