Impact force identification of CFRP stiffened panels using radiated sounds

Satoshi Atobe, Y. Tanaka, N. Hu, Hisao Fukunaga

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

Abstract

This paper discusses a method for identifying an impact force acting on a CFRP stiffened panel. The location and force history of the impact force are identified using the sound radiation from the impacted panel. More specifically, sound pressures measured at multiple locations with microphones are used. The impact location is identified from the arrival times of the sound wave, and then force history identification is performed using experimental transfer matrices which relate the impact force and the measured sound pressures. The force history is identified by minimizing the deviation between the measured sound pressures and the sound pressures estimated from the experimental transfer matrices. Impact force identification of a CFRP stiffened panel is performed experimentally, and the validity of the method is verified by comparing the identification results with the measured location and force history.

Original languageEnglish
Title of host publication27th Annual Technical Conference of the American Society for Composites 2012, Held Jointly with 15th Joint US-Japan Conference on Composite Materials and ASTM-D30 Meeting
Pages515-523
Number of pages9
Publication statusPublished - 2012 Dec 1
Event27th Annual Technical Conference of the American Society for Composites 2012, Held Jointly with 15th Joint US-Japan Conference on Composite Materials and ASTM-D30 Meeting - Arlington, TX, United States
Duration: 2012 Oct 12012 Oct 3

Publication series

Name27th Annual Technical Conference of the American Society for Composites 2012, Held Jointly with 15th Joint US-Japan Conference on Composite Materials and ASTM-D30 Meeting

Other

Other27th Annual Technical Conference of the American Society for Composites 2012, Held Jointly with 15th Joint US-Japan Conference on Composite Materials and ASTM-D30 Meeting
Country/TerritoryUnited States
CityArlington, TX
Period12/10/112/10/3

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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