An improved identification method of impact force acting on CFRP laminated plates

N. Hu, M. Tajima, N. Kawabata, S. Matsumoto, H. Fukunaga

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

1 Citation (Scopus)

Abstract

An identification method of impact force is presented in this paper. First, the relation between force histories and strain responses is formulated based on the finite element method (FEM). By employing this formulation, an error vector indicating the force location is defined and used for the force location detection. The identification of force history can be performed with the conventional least-squares method for an inverse problem. However, in an actual system, the identified force history has a large oscillation due to the measurement noise and FEM modeling error. To overcome this difficulty, second, the present paper proposes a reliable force identification method that imposes the penalty on the derivative of the force history. The present method has been applied to carbon fiber reinforced plastic (CFRP) laminated plates with a SMART Layer embedded with PZT piezoelectric sensors. The experiments of a cantilever plate have been performed to check the validity of the present method.

Original languageEnglish
Title of host publicationStructural Health Monitoring 2003
Subtitle of host publicationFrom Diagnostics and Prognostics to Structural Health Management - Proceedings of the 4th International Workshop on Structural Health Monitoring, IWSHM 2003
EditorsFu-Kuo Chang
PublisherDEStech Publications
Pages788-795
Number of pages8
ISBN (Electronic)1932078207, 9781932078206
Publication statusPublished - 2003 Jan 1
Event4th International Workshop on Structural Health Monitoring: From Diagnostics and Prognostics to Structural Health Management, IWSHM 2003 - Stanford, United States
Duration: 2003 Sep 152003 Sep 17

Publication series

NameStructural Health Monitoring 2003: From Diagnostics and Prognostics to Structural Health Management - Proceedings of the 4th International Workshop on Structural Health Monitoring, IWSHM 2003

Other

Other4th International Workshop on Structural Health Monitoring: From Diagnostics and Prognostics to Structural Health Management, IWSHM 2003
CountryUnited States
CityStanford
Period03/9/1503/9/17

ASJC Scopus subject areas

  • Computer Science Applications
  • Health Information Management

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