scholarly journals Parametric Instability of Woven Fiber Laminated Composite Plates in Adverse Hygrothermal Environment

2014 ◽  
Vol 2 (3) ◽  
pp. 70-81
Author(s):  
M. K. Rath ◽  
M. K. Dash
Keyword(s):  
Parametric Instability ◽  
Laminated Composite ◽  
Composite Plates ◽  
Laminated Composite Plates ◽  
Hygrothermal Environment

PARAMETRIC RESONANCE OF WOVEN FIBER LAMINATED COMPOSITE PLATES IN ADVERSE HYGROTHERMAL ENVIRONMENT

2012 ◽  
Vol 04 (04) ◽  
pp. 1250016
Author(s):  
M. K. RATH ◽  
S. K. SAHU
Keyword(s):  
Elevated Temperatures ◽  
Parametric Instability ◽  
Laminated Composite ◽  
Composite Plates ◽  
Laminated Composite Plates ◽  
Simply Supported ◽  
Number Of Layers ◽  
Dynamic Loadings ◽  
Instability Regions ◽  
Hygrothermal Environment

The present study deals with the parametric instability of woven fiber laminated composite plates subjected to periodic dynamic loadings in adverse hygrothermal environment. The effects of various parameters like increase in number of layers and lamination angle of simply supported composite plates at elevated temperatures and moisture concentrations on the principal instability regions are investigated using finite element method. The effects of transverse shear deformation and rotary inertia, is used to study the anti-symmetric angle-ply square plates. The results show that instability of woven fiber laminated composite plates occurs for different parameters with increase in adverse temperature and moisture environment.

DYNAMIC RESPONSE OF COMPOSITE PLATES IN HYGROTHERMAL ENVIRONMENT

2012 ◽  
Vol 04 (03) ◽  
pp. 1250009
Author(s):  
M. K. RATH ◽  
S. K. SAHU
Keyword(s):  
Free Vibration ◽  
Dynamic Response ◽  
Vibration Analysis ◽  
Epoxy Composite ◽  
Laminated Composite ◽  
Free Vibration Analysis ◽  
Composite Plates ◽  
Laminated Composite Plates ◽  
Fiber Glass ◽  
Hygrothermal Environment

The present study deals with both experimental and numerical investigation on vibration behavior of laminated composite plates subjected to varying temperature and moisture. Extensive experiments are carried out for free vibration analysis of woven fiber Glass/Epoxy composite plates under hygrothermal conditions. The specimens were hygrothermally conditioned in a humidity cabinet where the conditions were maintained at high temperatures and moisture concentrations.

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