A.53.15N/mm2; B.52.35N/mm2: C.51.75N/mm2; D.49.25N/mm2
A.53.5N/mm2; B.51.7N/mm2: C.50.3N/mm2; D.48.2N/mm2
A.21875N B.28125N C.25565N D.23500N