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The stresses in a critical aircraft component with respect to an x, y, z coordinate system are given below. a) What are the principal

The stresses in a critical aircraft component with respect to an x, y, z coordinate system are given below. a) What are the principal stresses? b) Find and sketch the directions of these principal stresses with respect to the x, y, z axes. Ox+390 MPa Oy = 0 Txz = = -150 MPa Tyz = Txy = 0 z = +600 MPa

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