• ASTM E 2580 : 2017 : REDLINE

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    Standard Practice for Ultrasonic Testing of Flat Panel Composites and Sandwich Core Materials Used in Aerospace Applications

    Available format(s):  PDF

    Language(s):  English

    Published date:  11-01-2017

    Publisher:  American Society for Testing and Materials

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    Abstract - (Show below) - (Hide below)

    CONTAINED IN VOL. 03.04, 2017 Determines two procedures for ultrasonic testing (UT) of flat panel composites and flat sandwich core panels (parallel surfaces).

    Scope - (Show below) - (Hide below)

    1.1This practice establishes two procedures for ultrasonic testing (UT) of flat panel composites and flat sandwich core panels (parallel surfaces). Typical as-fabricated lay-ups include uniaxial, cross ply and angle ply laminates; as well as honeycomb sandwich core materials. These procedures can be used throughout the life cycle of the materials; product and process design optimization, on line process control, after manufacture inspection, and in service inspection. Contact methods such as angle-beam techniques using shear waves, or surface-beam techniques using Lamb waves, are not discussed.

    1.2Ultrasonic testing is a common subsurface method for detection of laminar oriented discontinuities. Two techniques can be considered based on panel surface accessibility; pulse echo for one sided and through transmission (bubblers/squirters) for two sided. As used in this practice, both require the use of a pulsed straight-beam ultrasonic longitudinal wave followed by observing indications of either the reflected (pulse-echo) or received (through transmission) wave. The general types of anomalies detected by both techniques include foreign materials, delamination, disbond/un-bond, fiber de-bonding, inclusions, porosity, and voids.

    1.3This practice provides two ultrasonic test procedures. Each has its own merits and requirements for inspection and shall be selected as agreed upon in a contractual document.

    1.3.1Test Procedure A, Pulse Echo (non-contacting and contacting), is at a minimum a single transducer transmitting and receiving a longitudinal wave in the range of 0.5 to 20 MHz (see Fig. 1). This procedure requires access to only one side of the specimen. This procedure can be conducted by automated or manual means. Automated and manual test results may be imaged or recorded.

    FIG. 1Test Procedure A, Pulse Echo Apparatus Set-up

    Test Procedure A, Pulse Echo Apparatus Set-upTest Procedure A, Pulse Echo Apparatus Set-up

    1.3.2Test Procedure B, Through Transmission, is a combination of two transducers. One transmits a longitudinal wave and the other receives the longitudinal wave in the range of 0.5 MHz to 20 MHz (see Fig. 2). This procedure requires access to both sides of the specimen. This procedure is automated and the examination results are recorded.

    FIG. 2Test Procedure B, Through Transmission Apparatus Set-up

    Test Procedure B, Through Transmission Apparatus Set-upTest Procedure B, Through Transmission Apparatus Set-up

    1.4This practice does not specify accept-reject criteria.

    1.5This 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, health, environmental practices and determine the applicability of regulatory limitations prior to use.

    1.6This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

    General Product Information - (Show below) - (Hide below)

    Committee E 07
    Document Type Redline
    Publisher American Society for Testing and Materials
    Status Current

    Standards Referencing This Book - (Show below) - (Hide below)

    ASNT SNT TC 1A : 2016 TOPICAL OUTLINES FOR QUALIFICATION OF NONDESTRUCTIVE TESTING PERSONNEL
    SAE ARP 5606 : 2011 COMPOSITE HONEYCOMB NDI REFERENCE STANDARDS
    NAS 410 : 2003 NAS CERTIFICATION & QUALIFICATION OF NONDESTRUCTIVE TEST PERSONNEL
    ASNT CP 189 : 2016 QUALIFICATION AND CERTIFICATION OF NONDESTRUCTIVE TESTING PERSONNEL
    SAE ARP 5605 : 2011 SOLID COMPOSITE LAMINATE NDI REFERENCE STANDARDS
    ASTM E 543 : 2015 : REDLINE Standard Specification for Agencies Performing Nondestructive Testing
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