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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 gusset plate, the stresses are σx = 20 MPa, σy = 70 MPa, and τxy = 20 MPa. Determine principal stress σp2 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 = 890 με, εy = –100 με, and γxy = 710 μrad. Determine the diameter D of the corresponding in-plane Mohr’s circle.

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 = 12 ksi, σy = –22 ksi, and τxy = 16 ksi. Determine normal stress σn at the point for a clockwise coordinate rotation of 84°.

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 = 30,800 ksi,ν = 0.12], a strain rosette was used to obtain normal strains of εa = 439 με, εb = –200 με, and εc = 418 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 = 400 με, εy = 760 με, and γxy = –100 μrad. Determine the radius R of the corresponding in-plane Mohr’s circle.

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 gusset plate, the stresses are σx = –15 ksi, σy = –22 ksi, and τxy = –11 ksi. Determine principal stress σp2 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 = 4.60 MPa, G = 1.60 MPa] wristband has an initial length of 90 mm and a width of 13 mm. If the wearer imparts a normal stress of 400 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 subjected to plane stress on the surface of a structural member, the stresses are σx = –5 ksi, σy = –15 ksi, and τxy = 10 ksi. Determine the magnitude of the absolute maximum shear stress at the point.

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 gusset plate, the stresses are σx = –24 ksi, σy = 8 ksi, and τxy = –3 ksi. Determine principal stress σp1 at the point.

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 = 20 MPa, σy = 70 MPa, and τxy = –60 MPa. Determine the angle θp corresponding to the orientation of the principal planes at the point.