Free Vibration Analysis of Cantilevered Composite and Hybrid Composite Triangular Plates

외팔형 복합재료 및 혼합적층 삼각판의 자유진동 해석

  • 이영신 (충남대학교 공과대학 기계설계공학과) ;
  • 최명환 (충남대학교 대학원 기계설계공학과)
  • Published : 1993.09.01

Abstract

For efficient use of composite materials in engineering applications the dynamic behavior, that is, natural frequencies, nodal patterns should be informed. This study presents the experimental and FEM results for the free vibration of cantilevered, symmetrically and antisymmetrically laminated composite triangular plates. The natural frequencies and nodal patterns of a number of CFRP, GFRP, composite-Aluminum and CFRP-GFRP hybrid composite plates are experimentally obtained. A method for the determination of the Young's modulus and test procedures are described. The natural frequencies are determined for a wide range of parameters: e.g., composite material constants, fiber angles and stacking sequences. Natural frequency and nondimensional frequency parameter results are compared with the finite element analysis and existing literatures. Agreement between experimental and calculated frequencies is excellent.

Keywords

References

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