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composite engineering: "The lamina thickness of a composite [0/90/] plate is 10 mm. Given that the...

composite engineering:

"The lamina thickness of a composite [0/90/] plate is 10 mm. Given that the Young's modulus E for the laminas with O ^ 0 and 90° fiber direction are 45 GPa and 12 GPa, respectively. Find the bending stress o on the bottom and top surface of the plate when the bending moment M = 500 N.m is applied. Also, calculate the bending stiffness of the plate knowing that the width of the plate is 60 mm. Hint: Use transformed section method and lamina with O ^ 0 fiber direction as the reference layer" (The Plate consiste of two layers [0/90].
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