A plate of width 2w 10 in and thickncss t 01 in is made of

A plate of width 2w = 10 in. and thickncss t = 0.1 in. is made of7075-T651 aluminum (S = 78 ksi, S, = 70 ksi). It has a plane stress Kt = 60 ksi. It is used in an aircraft component which will be inspected periodically for cracks. Estimate the highest load, P, that can be applied without causing sudden fracture when a central crack grows to a length. 2c, of 1.5 in.

highest load P = 60*10 =600