Dynamic instability analysis of variable angle tow composite plate with delamination around a cut-out

Samukham, Surya and Raju, Gangadharan and Wu, Zhangming and Vyasarayani, C P (2019) Dynamic instability analysis of variable angle tow composite plate with delamination around a cut-out. Mechanics of Advanced Materials and Structures, 26 (1). pp. 62-70. ISSN 1537-6494

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Abstract

The dynamic instability analysis of a simply supported variable angle tow (VAT) composite with delamination around a cutout subjected to periodic axial compression load is investigated. The governing equations of motion for the VAT plate are derived based on first-order shear deformation theory and solved using finite element method. The equations of motion contain time periodic coefficients and their stability is determined using the Bolotin’s approach. A parametric study is carried out to analyze the effect of linearly varying fiber orientation angle on the dynamic instability of VAT laminate with delamination around a circular cutout.

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