Can you use the plane stress or plane strain element to model the following? If so, indicate which ones are best modeled using plane stress or best modeled using plane strain elements.

a. A flat slab floor of a building with vertical loading perpendicular to the slab

b. A uniform concrete dam subjected to hydrostatic loading along the whole length of the dam

c. A tensile plate with a hole drilled tranversely through it

d. A connecting rod with loads in the plane of the rod

e. A soil mass subjected to a strip footing loading

f. A wrench subjected to a force in the plane of the wrench

g. A wrench subjected to twisting forces (the twisting forces act out of the plane of the wrench)

h. A triangular plate connection with loads in the plane of the triangle

i. A triangular plate connection with out-of-plane loads