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Quantitative Evaluation of Delamination in Composites Using Lamb Waves

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00010669%3A_____%2F18%3AN0000055" target="_blank" >RIV/00010669:_____/18:N0000055 - isvavai.cz</a>

  • Alternative codes found

    RIV/00010669:_____/17:N0000134

  • Result on the web

    <a href="https://iopscience.iop.org/article/10.1088/1757-899X/326/1/012006/meta" target="_blank" >https://iopscience.iop.org/article/10.1088/1757-899X/326/1/012006/meta</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1088/1757-899x/326/1/012006" target="_blank" >10.1088/1757-899x/326/1/012006</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Quantitative Evaluation of Delamination in Composites Using Lamb Waves

  • Original language description

    Ultrasonic guided wave monitoring has become very popular in the area of structural health monitoring (SHM) of aerospace structures. Any possible type of damage must be reliably assessed. The paper deals with delamination length determination in DCB specimens using Lamb waves. An analytical equation based on the velocity dependence on variable thickness is utilized. The group velocity of the fundamental antisymmetric A0 mode rapidly changes in a particular range of the frequency-thickness product. Using the same actuation frequency the propagation velocity is different for delaminated structure. Lamb wave based delamination lengths were compared to the visually determined lengths. The method of the wave velocity determination proved to be essential. More accurate results were achieved by tracking the maximum amplitude of A0 mode than the first signal arrival. These findings are considered as the basis for the damage evaluation of complex structures.

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • OECD FORD branch

    20501 - Materials engineering

Result continuities

  • Project

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2018

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Article name in the collection

    IOP Conference Series: Materials Science and Engineering, 326 (1), art. no. 012006

  • ISBN

  • ISSN

    17578981

  • e-ISSN

  • Number of pages

    7

  • Pages from-to

    nestrankovano

  • Publisher name

    Institute of Physics Publishing

  • Place of publication

    Neuveden

  • Event location

    Dubaj, SAE

  • Event date

    Dec 13, 2017

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article