Stiffness of a Carbon Fiber Sheet

 

 

 Aluminum Plate, 1 inch thick, subject to bending has a flexural stiffness, D, 966,109 lb.in^2, and a weight 14.5 lbs/ft^2
Steel Plate, 1 inch thick, subject to bending has a flexural stiffness, D, 2,596,378 lb.in^2, and a weight 40 lbs/ft^2

 

 

 Quasi-Isotropic [0/45/-45/90] carbon fiber skinned foam core Panel, 1.25 inch thick, subject to bending has a flexural stiffness, D, 343,971 lb.in^2, and a weight 2.6 lbs/ft^2
Bi-Directional [0/90] carbon fiber skinned foam core Panel, 1.18 inch thick, subject to bending has a flexural stiffness, D, 332,369 lb.in^2, and a weight 2.1 lbs/ft^2

 

 



Quasi-isotropic Sandwich panel Flexural Stiffness diagram. The reader must note that the composite panel stiffnesses are singled valued due to the fixed value of thickness.

Table of Flexural Stiffness values for Aluminum, Steel, and Quasi-Isotropic Composite Panels and Plates

     CFCP001 CFCP001 CFCP001 CFCP001
      1000A 1000A 2000A 2000A
Thickness Aluminium Steel Q08 Q16 Q08 Q16
inches lb.in^2 lb.in^2 lb.in^2 lb.in^2 lb.in^2 lb.in^2
0.1875 6,368 17,115        
0.25 15,095 40,568        
0.5 120,764 324,547        
0.75 407,577 1,095,347        
1 966,109 2,596,378        
1,25     343,971      
1.37       753,108    
2.25         1,208,372  
2.37           2,512,722


 

Bi-Directional Sandwich panel Flexural Stiffness diagram. The reader must note that the composite plate stiffnesses are singled valued due to the fixed value of thickness.

 

      CFCP001 CFCP001 CFCP001 CFCP001
      1000A 1000A 2000A 2000A
Thickness Aluminium Steel Q08 Q16 Q08 Q16
inches lb.in^2 lb.in^2 lb.in^2 lb.in^2 lb.in^2 lb.in^2
0.1875 6,368 17,115        
0.25 15,095 40,568        
0.5 120,764 324,547        
0.75 407,577 1,095,347        
1 966,109 2,596,378        
1,25     332,569      
1.37       557,423    
2.25         1,200,366  
2.37           1,958,231

 

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