At a point subjected to plane stress on the surface of a structural-steel member, the stresses are σx = 5 ksi, σy = –30 ksi, and τxy = 30 ksi. Determine the diameter D of the corresponding in-plane Mohr’s circle.

At a point subjected to plane stress on the surface of a ladder rung, the stresses are σx = –140 psi, σy = 0 psi, and τxy = –55 psi. Determine the angle θs corresponding to the orientation of the maximum in-plane shear stress at the point.

At a point in a body subjected to plane strain, the strains are εx = 364 με, εy = 884 με, and γxy = 45 μrad. Determine the average normal strain at the point.

At a point subjected to plane stress on the surface of a compressed air cylinder, the stresses are σx = 5 ksi, σy = 9 ksi, and τxy = –1 ksi. Determine shear stress τnt at the point for a clockwise coordinate rotation of 78°.

At a point subjected to plane stress on the surface of a drill bit, the stresses are σx = 20 MPa, σy = 0 MPa, and τxy = 100 MPa. Determine the magnitude of the maximum in-plane shear stress at the point.

At a point in a body subjected to plane strain, the strains are εx = –840 με, εy = –800 με, and γxy = 610 μrad. Determine the angle θs corresponding to the orientation of the maximum in-plane shear strain at the point.

At a point in a body subjected to plane strain, the strains are εx = 470 με, εy = 10 με, and γxy = 380 μrad. Determine the radius R of the corresponding in-plane Mohr’s circle.

A silicone rubber [E = 2.60 MPa, G = 0.87 MPa] wristband has an initial length of 94 mm and a width of 11 mm. If the wearer imparts a normal stress of 470 kPa in the length direction while putting it on, what is the corresponding change in width?

At a point subjected to plane stress on the surface of a drill bit, the stresses are σx = 40 MPa, σy = 0 MPa, and τxy = 45 MPa. Determine the magnitude of the maximum in-plane shear stress at the point.

At a point subjected to plane stress on the surface of a drill bit, the stresses are σx = 11 ksi, σy = 0 ksi, and τxy = 6 ksi. Determine the magnitude of the maximum in-plane shear stress at the point.