한국안전학회지 (Journal of the Korean Society of Safety)

  • 제26권6호
  • /
  • Pages.64-70
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  • 2011
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  • 1738-3803(pISSN)
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  • 2383-9953(eISSN)
한국안전학회 (The Korean Society of Safety)
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PVDF 필름을 이용한 구조물의 동적 변형률 측정

Measurements of Dynamic Strain of Structures Using PVDF Films

  • Kim, Su-Min (Department of Safety Engineering, Pukyong National University) ;
  • Shin, Sung-Woo (Department of Safety Engineering, Pukyong National University) ;
  • Lee, Jae-Yong (Department of Architectural Engineering, Pukyong National University) ;
  • Kim, Nam-Sik (Department of Civil Engineering, Pusan National University)
  • 투고 : 2011.09.20
  • 심사 : 2011.12.12
  • 발행 : 2011.12.31
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초록

In this study, the applicability of PVDF films for measurements of dynamic strain in a structure was investigated. A relationship between the strain and the voltage response of a PVDF film was analytically derived. Free vibration test on a steel cantilever beam was performed and vibration response of the beam was measured both by a convential foil strain gauge and a PVDF film. Strain-voltage relationship obtained from the experiment was compared with the analytic relationship. Good agreement between the analytic and experimental relationships was observed. It was found that a tailored PVDF film can measure the dynamic strain of a structure as accurate as a conventional foil strain gauge.

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참고문헌

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