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    Phased Array Code Status

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    عزت عبد المنعم
    This document summarizes the status of phased array code acceptance. It discusses various code bodies including ASME, ASTM, API, AWS, and others. ASME accepts phased arrays under computerized imaging technology but techniques must be approved. Recent code cases allow UT instead of RT using phased arrays. ASTM published a recommended practice for phased array setup. API approval for phased arrays is pending. AWS demonstrated compliance and is working to fully codify acceptance. The goal is single pass, code-compliant inspections using encoded or manual E- and S-scans with phased arrays.

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    Phased Array Code Status

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    عزت عبد المنعم
    149 views21 pages
    This document summarizes the status of phased array code acceptance. It discusses various code bodies including ASME, ASTM, API, AWS, and others. ASME accepts phased arrays under computerized imaging technology but techniques must be approved. Recent code cases allow UT instead of RT using phased arrays. ASTM published a recommended practice for phased array setup. API approval for phased arrays is pending. AWS demonstrated compliance and is working to fully codify acceptance. The goal is single pass, code-compliant inspections using encoded or manual E- and S-scans with phased arrays.

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    This document summarizes the status of phased array code acceptance. It discusses various code bodies including ASME, ASTM, API, AWS, and others. ASME accepts phased arrays under computerized imaging technology but techniques must be approved. Recent code cases allow UT instead of RT using phased arrays. ASTM published a recommended practice for phased array setup. API approval for phased arrays is pending. AWS demonstrated compliance and is working to fully codify acceptance. The goal is single pass, code-compliant inspections using encoded or manual E- and S-scans with phased arrays.

    Copyright:

    © All Rights Reserved
    Download as PPT, PDF, TXT or read online from Scribd
    Download as ppt, pdf, or txt
    149 views21 pages

    Phased Array Code Status

    Uploaded by

    عزت عبد المنعم
    This document summarizes the status of phased array code acceptance. It discusses various code bodies including ASME, ASTM, API, AWS, and others. ASME accepts phased arrays under computerized imaging technology but techniques must be approved. Recent code cases allow UT instead of RT using phased arrays. ASTM published a recommended practice for phased array setup. API approval for phased arrays is pending. AWS demonstrated compliance and is working to fully codify acceptance. The goal is single pass, code-compliant inspections using encoded or manual E- and S-scans with phased arrays.

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    © All Rights Reserved
    Download as PPT, PDF, TXT or read online from Scribd
    Download as ppt, pdf, or txt
    of 21
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    The document discusses the status and activities regarding incorporating phased arrays into various codes such as ASME, API, AWS, and ASTM. It outlines efforts to develop code cases and appendices to codify the use of phased arrays.

    The document discusses code activities involving ASME, ASTM, API, AWS, and other codes. The activities outlined include development of code cases, recommended practices, and codification in various codes and standards.

    The document discusses a paper published in 2005 that showed limitations of single pass S-scans, especially for thick walls, based on modeling. It showed limitations in detecting defects for thick-walled components.

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    1
    Phased Array Code Status
    March 2007
    2
    Presentation outline
    Code activities:
    ASME, ASME and ASME
    ASTM
    API
    AWS
    Others
    Where do we stand today?

    ASME
    ASME Code Case 2235
    S-scans
    PA Code Cases
    Mandatory Appendix
    4
    ASME
    Accepts phased arrays specifically as
    Computerized Imaging Technology or
    CITs.
    Need to have techniques and procedures
    approved
    Typically use Performance Demonstration
    approach.
    5
    ASME Code Case 2235
    Recent code case for using UT instead
    of RT
    Based on Performance Demonstration,
    (like ASME Section V Article 14)
    Requires detecting three defects (ID,
    OD, sub-surface)
    Requires full data collection and
    encoder
    Can fulfill with single linear pass
    Often interpreted as TOFD, but can be
    pulse-echo or combination, or PA.
    6
    Code activities S-scans
    Realized limitations of single pass S-
    scans and ASME Code Case 2235
    Published paper in MatEval in January
    2005 on S-scan limitations, based
    largely on modeling
    Showed limitations of S-scans,
    especially for thick walls
    Generated several comments, mostly
    from people who didnt read it properly!
    7
    S-scans for welds
    Can calibrate S-scans at any angle on ASME SDH
    S-scan does not necessarily give best angles for weld
    inspections, especially with single pass
    Concept of bevel incident angle (BIA) on weld
    8
    ASME cautionary paragraph
    Submitted cautionary
    paragraph on S-scans
    to ASME
    Now in ASME CC
    2235-8/9
    Recommended
    against single S-scans
    for walls >25 mm (1)
    Now superseded by
    upcoming PA code
    cases
    9
    ASME PA code cases
    Prepared phased array code cases for
    PAs
    Single beam rastering, manual E- and S-
    scans, encoded E-scans, and S-scans.
    PA group: Ed Ginzel (MRI), Mark Davis
    (Davis NDE), Chris Magruder and MM
    First code case approved (2541); manual
    S-scans and E-scans going through
    ASME.
    Linear scanning code cases in progress.
    10
    ASME Phased Array Appendix
    Working Group recommended full ASME
    Mandatory Appendix for phased arrays:
    manual and encoded. Drafted.
    Typically acceptance much slower than with
    code case approach

    Generic ASME procedure for welds now
    available.
    API
    QUTE UT1 and UT2
    12
    Code activities - API
    Master plan with Davis NDE; has many
    API-evaluated weld samples
    Approach used API UT 1 and UT 2
    procedures with no changes
    Essentially scan known samples using
    new technology/techniques
    Trial in Dec 2005; went very well
    Still waiting for official approval, but
    expected
    Generic procedure almost available.
    AWS
    AWS D1:1 Structural Welding Code
    14
    Code activities - AWS
    Demonstrated AWS D1:1 compliance thru
    Annex K and Smith-Emery in LA
    A special; plan on publishing
    Major problem: each case required the
    Engineers approval
    Final solution: with 2006 version => new
    technology/technique approvals are codified

    Generic AWS procedure available.
    ASTM
    Recommended Practice
    16
    Code activities ASTM
    Recommended practice for phased
    array set-up prepared by Ed Ginzel,
    MRI
    Recently published
    Will require full angle corrected gain
    (ACG) over SDH calibration range
    Also requires TCG
    Limits to angular range based on
    recommendations and calibration.
    17
    Code activities ASTM
    From Insight
    Under proposed
    ASTM RP, this
    angular range is
    unlikely to be
    calibrate-able.
    Other Codes
    Global assessment
    19
    Other Codes
    Relatively little PA code activity elsewhere
    North America leading due to push from
    Olympus NDT and associated companies
    Europe: interest in PA qualifications, but no
    PA code work yet. EN1714 status unclear.
    ISO: No significant activity yet
    Japan: Appendix for PA use in crack sizing,
    otherwise limited.
    20
    Code activities summary (1)
    Phased arrays inherently accepted by
    ASME
    But, may need to get techniques and
    procedures approved via Performance
    Demonstration approaches
    (ASME Section V Article 14 good
    approach for approvals with Performance
    Demonstration)
    Code Cases in progress
    Ultimately, will codify in new Mandatory
    Appendix.
    21
    Code activities summary (2)
    ASTM RP for PA set-up in print
    API approval pending went well
    AWS special in late 2005; now working on
    full codification in 2006
    Other codes unclear
    Objective: single pass, code-compliant
    inspections using E- or S-scans, manual or
    encoded

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