skip to main content
Language:
Search Limited to: Search Limited to: Resource type Show Results with: Show Results with: Search type Index

Finite element evaluation of the effects of curvature in Lamb waves for composites structural health monitoring

Latin American Journal of Solids and Structures, 2018-01, Vol.15 (10) [Peer Reviewed Journal]

COPYRIGHT 2018 Latin American Journal of Solids and Structures ;This work is licensed under a Creative Commons Attribution 4.0 International License. ;ISSN: 1679-7817 ;ISSN: 1679-7825 ;EISSN: 1679-7825 ;DOI: 10.1590/1679-78255193

Full text available

Citations Cited by
  • Title:
    Finite element evaluation of the effects of curvature in Lamb waves for composites structural health monitoring
  • Author: Santana, Guilherme André ; Malekan, Mohammad ; Araújo, Alexandre Martins ; Donadon, Lázaro Valentim ; Cimini Jr, Carlos Alberto
  • Subjects: Curvature (Mathematics) ; ENGINEERING, CIVIL ; ENGINEERING, MECHANICAL ; Finite element method ; Glass reinforced plastics ; Laminates ; Mechanical properties ; MECHANICS ; Observations ; Testing ; Wave propagation
  • Is Part Of: Latin American Journal of Solids and Structures, 2018-01, Vol.15 (10)
  • Description: This work presents the effect of the high curvature to thickness ratio on the characteristics of Lamb Waves propagating over the skins of composite structures. It is accessed how the curvature on composite skins affects the group velocity of the symmetrical (S0) and asymmetrical (A0) wave modes. It is also accessed the gradient of curvature effect, when the wave propagates from a flat to a curved part on the skin. The results are intended to be used for the improvement of structural health monitoring of wings and wind turbine blades. This is accomplished through dynamic explicit linear finite element method simulations of plates with flat and curved parts made of Eglass-epoxy bidirectional laminate. As the skin structures are often designed to withstand torsional loads, the fibers are aligned with 45 degrees from the leading edge (curved region) throughout the analysis. Several skins with different curvature to thickness ratios are generated and simulated. Results and trends are presented and can be used to improve the algorithms for damage detection on those structures. It is shown that the group velocity of the incoming waves change considerably with the presence of curvature, for both main modes of vibration.
  • Publisher: Latin American Journal of Solids and Structures
  • Language: English;Portuguese
  • Identifier: ISSN: 1679-7817
    ISSN: 1679-7825
    EISSN: 1679-7825
    DOI: 10.1590/1679-78255193
  • Source: Open Access: DOAJ Directory of Open Access Journals
    SciELO
    ROAD: Directory of Open Access Scholarly Resources
Back to results list
INSPIRE LIBRARY - TON DUC THANG UNIVERSITY (84-028) 37 755 057 Feedback
19 Nguyen Huu Tho St. Dist.7, HCM thuvien@tdtu.edu.vn

Copyright © 2017 INSPIRE LIBRARY - TON DUC THANG UNIVERSITY

Searching Remote Databases, Please Wait