Real-time impact damage identification of composite structures

H. Fukunaga, Y. Miura, N. Hu

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

Abstract

Detecting impact damages in real-time is an important concern for keeping up structural integrity of aerospace composite structures since impact damages may cause extreme degradation of material strength like compression after impact. The information of impact force should be a considerably significant indicator in an evaluation of damages. As a real-time structural health monitoring, the present paper proposes an identification method of impact damages in CFRP structures based on the experimental impact force identification. In a low-velocity impact event, the relationship between impact force history and corresponding strain responses in CFRP structures can be determined experimentally by an impact test using impulse hammer. Based on the relationship, the force location and the force history were identified with the strain responses measured at multiple points in a structure. The present paper develops a real-time evaluation method of impact damages such as delamination or matrix cracking using the information of impact forces obtained by impact force identification.

Original languageEnglish
Title of host publicationProceedings of the 4th European Workshop on Structural Health Monitoring
Pages543-550
Number of pages8
Publication statusPublished - 2008 Dec 1
Event4th European Workshop on Structural Health Monitoring - Cracow, Poland
Duration: 2008 Jul 22008 Jul 4

Publication series

NameProceedings of the 4th European Workshop on Structural Health Monitoring

Other

Other4th European Workshop on Structural Health Monitoring
CountryPoland
CityCracow
Period08/7/208/7/4

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Architecture
  • Safety, Risk, Reliability and Quality

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  • Cite this

    Fukunaga, H., Miura, Y., & Hu, N. (2008). Real-time impact damage identification of composite structures. In Proceedings of the 4th European Workshop on Structural Health Monitoring (pp. 543-550). (Proceedings of the 4th European Workshop on Structural Health Monitoring).