PART a 



h - INCHES 



STIFFENER - 2 PLIES WOVEN ROVING 

 PLATE - 2 OZ MAT 



h - INCHES 



STIFFENER - 3 PLIES WOVEN ROVING 

 PLATE - 4 OZ MAT 



Zwp ~ TO WOVEN ROVING FACE OF STIFFENER 



ZcL - T ° CLOTH FACE OF PLATE 



I - ABOUT NEUTRAL AXIS - WOVEN ROVING EQUIVALENCE 

 E = 2.06 X 10 6 PSl 



h - I NCHES 



STIFFENER - 2 PLIES WOVEN ROVING 

 PLATE - 3 OZ MAT 



NUMBER OF PLIES OF 25-27 OZ 

 WOVEN ROVING IN STIFFENER 

 VARIES AS INDICATED 



1 PLY OF 25-27 OZ WOVEN ROVING 



NUMBER OF OUNCES OF MAT IN 

 PLATE VARIES AS INDICATED 



1 PLY OF 1 OZ CLOTH - OUTER 



Fig. 6-38. Fiberglass Polyester Laminates - Section Modulus, Z, 

 and Moment of Inertia, I, for 25-27 Oz, Woven Roving Hat Stiffeners 

 with Type B Laminate. Core Considered Ineffective 



6-65 



