Author: Anonymous

A silicone rubber [E = 3.50 MPa, G = 1.20 MPa] wristband has an initial length of 101 mm and a width of 12 mm. If the wearer imparts a normal stress of 550 kPa in the length direction while putting it on, what is the corresponding change in width?

At a point in a body subjected to plane strain, the strains are εx = –240 με, εy = 20 με, and γxy = 350 μrad. Determine the magnitude of the maximum in-plane shear strain at the point.

At a point subjected to plane stress on the surface of a structural member, the stresses are σx = 17 ksi, σy = 18 ksi, and τxy = –8 ksi. Determine the magnitude of the absolute maximum shear stress at the point.

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 backhoe, the stresses are σx = –18 ksi, σy = 9 ksi, and τxy = –21 ksi. Determine the angle θp corresponding to the orientation of the principal planes at the point.

At a point in a body subjected to plane strain, the strains are εx = 410 με, εy = –140 με, and γxy = –90 μrad. Determine the angle θp corresponding to the orientation of the principal planes at the point.

At a point in a body subjected to plane strain, the strains are εx = 89 με, εy = 869 με, and γxy = –545 μrad. Determine the center εcenter of the corresponding in-plane Mohr’s circle.

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 subjected to plane stress on the surface of a structural-steel member, the stresses are σx = 10 ksi, σy = –10 ksi, and τxy = –15 ksi. Determine the diameter D of the corresponding in-plane Mohr’s circle.

A Mohr’s circle is shown for a point in a physical object that is subjected to plane stress. If 1 grid square = 9 MPa, determine the stress σy.