Damage evaluation using reflection intensity from damage in metallic and carbon fibre reinforced polymer laminated structures

N. Hu, Hisao Fukunaga, Y. Liu, Yuan Li

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A powerful Mindlin pseudospectral plate element is employed for efficiently simulating the Lamb wave propagation in damaged metallic and CFRP laminated structures. Extensive explorations are performed to analyze the influence of various wave parameters on the reflection intensity from various damages, such as delamination in CFRP laminates, hole and crack in metallic plates. It is found that there are multiple optimal excitation frequencies to induce the strongest reflection intensity, which are close to the resonant natural frequencies of the local damaged region. Also, it is possible to evaluate the damage size by using a proposed relationship between the damage size and the reflection intensity in metallic structures.

Original languageEnglish
Title of host publicationProceedings of the 10th International Conference on Computational Structures Technology, CST 2010
PublisherCivil-Comp Press
Volume93
ISBN (Print)9781905088386
Publication statusPublished - 2010 Jan 1
Event10th International Conference on Computational Structures Technology, CST 2010 - Valencia, Spain
Duration: 2010 Sep 142010 Sep 17

Other

Other10th International Conference on Computational Structures Technology, CST 2010
CountrySpain
CityValencia
Period10/9/1410/9/17

Keywords

  • CFRP laminates
  • Damage identification
  • Lamb wave
  • Metallic structures
  • Reflection intensity

ASJC Scopus subject areas

  • Environmental Engineering
  • Civil and Structural Engineering
  • Computational Theory and Mathematics
  • Artificial Intelligence

Fingerprint Dive into the research topics of 'Damage evaluation using reflection intensity from damage in metallic and carbon fibre reinforced polymer laminated structures'. Together they form a unique fingerprint.

Cite this