复合材料裂纹板振动分析

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 1989, Vol. 10 ›› Issue (11): 603-608.

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AN ANALYSIS FOR VIBRATION OF COMPOSITE LAMINATES WITH CRACKS

Pan Jianrong¹, Huang Weiyang², Fan Weixun²

1. Chinese Helicopter Research and Development Institute;2. Nanjing Aeronautical Institute

Received:1988-09-29 Revised:1900-01-01 Online:1989-11-25 Published:1989-11-25

Abstract

Abstract:

In this paper a variational function is derived, by which the obtained characteristics of cracked structures are obtained and the natural characteristics of a plate with penetrating cracks are analyzed by convergent series method. The Lagrange's multipliers are derived for bending composite laminates and the computational formulas for natural characteristics of a plate with arbitrary penetrating cracks are established. At last, the results obtained by the convergent series method are compared with those by finite element method or tests. The results are proven to be satisfactory.

Key words: composite material, variational function, cracked structures

Pan Jianrong;Huang Weiyang;Fan Weixun. AN ANALYSIS FOR VIBRATION OF COMPOSITE LAMINATES WITH CRACKS[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 1989, 10(11): 603-608.

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AN ANALYSIS FOR VIBRATION OF COMPOSITE LAMINATES WITH CRACKS

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