An identical crack is present in two steel plates (of Poisson’s ratio = 0.3), one of the thickness much larger than the crack size and the other of much smaller thickness. If the fracture stress of the thinner plate is 𝞂. then the stress required for fracture in the thicker plate will be …………

An identical crack is present in two steel plates (of Poisson’s ratio = 0.3), one of the thickness much larger than the crack size and the other of much smaller thickness. If the fracture stress of the thinner plate is 𝞂. then the stress required for fracture in the thicker plate will be …………