Create 5 variations of the following problem but do not show the answers. At a point subjected to plane stress on the surface of a backhoe, the stresses are σx = –100 MPa, σy = 30 MPa, and τxy = 80 MPa. Determine the angle θp corresponding to the orientation of the principal planes at the point.

Create 5 variations of the following problem but do not show the answers. At a point in a body subjected to plane strain, the strains are εx = 680 με, εy = 470 με, and γxy = 80 μrad. Determine the angle θp corresponding to the orientation of the principal planes at the point.

Create 5 variations of the following problem but do not show the answers. At a point on the free surface of a steel automotive component [E = 30,100 ksi,ν = 0.18], a strain rosette was used to obtain normal strains of εa = 340 με, εb = –65 με, and εc = 316 με. Determine normal strain εx at the point.

I am a teacher and need help creating exam problems. Please recommend more incorrect answers to the following problem but do not explain your logic. At a point in a body subjected to plane strain, the strains are εx = –560 με, εy = –420 με, and γxy = 420 μrad. Determine shear strain γnt at the point for a clockwise coordinate rotation of 27°.

Create 5 variations of the following problem but do not show the answers. At a point on the free surface of a steel automotive component [E = 28,500 ksi,ν = 0.24], a strain rosette was used to obtain normal strains of εa = 109 με, εb = –50 με, and εc = 231 με. Determine normal strain εx at the point.

I am a teacher and need help creating exam problems. Please recommend more incorrect answers to the following problem but do not explain your logic. A silicone rubber [E = 7.40 MPa, G = 2.50 MPa] wristband has an initial length of 91 mm and a width of 10 mm. If the wearer imparts a normal stress of 430 kPa in the length direction while putting it on, what is the corresponding change in width?

Create 5 variations of the following problem but do not show the answers. At a point on the free surface of a steel automotive component [E = 28,100 ksi,ν = 0.15], a strain rosette was used to obtain normal strains of εa = 340 με, εb = –290 με, and εc = 10 με. Determine normal strain εx at the point.

I am a teacher and need help creating exam problems. Please recommend more incorrect answers to the following problem but do not explain your logic. 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°.

Create 5 variations of the following problem but do not show the answers. At a point on the free surface of a steel automotive component [E = 29,000 ksi,ν = 0.2], a strain rosette was used to obtain normal strains of εa = 142 με, εb = –170 με, and εc = 146 με. Determine normal strain εx at the point.

Create 5 variations of the following problem but do not show the answers. At a point in a body subjected to plane strain, the strains are εx = –50 με, εy = 100 με, and γxy = 20 μrad. Determine the angle θp corresponding to the orientation of the principal planes at the point.