y=(12*F*(L^3))/(b*(t^3)*((2*ng)+(3*ne))*E)
thickness t=12.323 mm

With extra full length leaf pre-stressed,
s = (6*F*L)/(n*b*(t^2))
	=195 MN/m^2

With no pre-stresses,
se=(18*F*L)/(b*(t^2)*((2*ng)+(3*ne)))
	 277 MN/m2