Počet záznamů: 1

Structural Health Monitoring in aerospace and civil engineering supported with two ultrasonic NDT methods - AE and NEWS

  1. 1.
    0366837 - UT-L 2012 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
    Převorovský, Zdeněk - Krofta, Josef - Farová, Zuzana - Chlada, Milan
    Structural Health Monitoring in aerospace and civil engineering supported with two ultrasonic NDT methods - AE and NEWS.
    NDT in Progress 2011. Brno: University of Technology Brno, 2011 - (Mazal, P.), s. 237-244. ISBN 978-80-214-4339-6.
    [NDT in PROGRESS /6./. Praha (CZ), 10.10.2011-12.10.2011]
    Grant CEP: GA MPO(CZ) FR-TI1/274; GA MPO(CZ) FR-TI1/198
    Výzkumný záměr: CEZ:AV0Z20760514
    Klíčová slova: NDT * structural health monitoring * acoustic emission * nonlinear elastic wave spectroscopy * time reversal mirrors
    Kód oboru RIV: BI - Akustika a kmity

    Structural Health Monitoring (SHM) becomes today an important technology improving reliability and safety of aeronautical and civil structures. Combining of two ultrasonic NDT methods - Acoustic Emission (AE) with Nonlinear Elastic Wave Spectroscopy (NEWS) - in SHM systems brings many advantages. AE enables real-time detection and localization of initiation and progression under operational stimulations, and NEWS methods provide retrieval of structural faults and complete information on AE sources. Examples of a complex SHM system design for critical parts of both aircraft and building roofs are discussed in this paper. The NEWS pseudo-tomography procedure, based on Time Reversal Mirrors (TRM) with Excitation Symmetry Analysis Method (ESAM), enabled zone-location of initiating defects, not detectable by other classical NDT procedures.Our results reflect good robustness of both techniques, and support their helpfulness in SHM of aircraft and building structures.
    Trvalý link: http://hdl.handle.net/11104/0201690