NUMBER OF PLIES WOVEN ROVING IN STIFFENER 

 PLATE - 2 PLIES WOVEN ROVING 



number of plies woven roving in stiffener 

 plate - * plies woven roving 



2 WP - 10 WOVEN ROVING FACE OF STIFFENER 

 2 CL - TO CLOTH FACE OF PLATE 



I - ABOUT NEUTRAL AXIS - WOVEN ROVING EQUIVALENCE 

 E = 2.06 X 1 6 PSI 



NUMBER OF PLIES OF 25-27 02 

 WOVEN ROVING IN STIFFENER AND 

 IN PLATE VARIES AS INDICATED. 



. 1 PLY OF 2 OZ MAT - INNER 

 1 Ply OF 10 OZ CLOTH - OUTER 



ASSUMED EFFECT I V 

 Wl DTH OF PLATE 



UMBER OF PLIES WOVEN ROVING IN STIFFENER 

 PLATE - 3 PLIES WOVEN ROVING 



Fig. 6-39. Fiberglass Polyester Laminates - Section Modulus, Z, 

 and Moment of Inertia, I, for 25-27 Oz. Woven Roving Half-Round 

 Stiffeners with Type A Laminate. Core Considered Ineffective 



6-69 



