A 3/4 in. x 3 in. plate must resist a service dead load of 3…

A 3/4 in. x 3 in. plate must resist a service dead load of 32 kips and a service live load of 40 kips in tension. The plate is connected to a gusset with three 1 in. bolts. Standard sizing is used for the bolt holes. The steel is ASTM A572 Grade 60: Fy = 60 ksi, Fu = 75 ksi. Assume that Ae = An. Using LRFD, does the plate have enough strength?

A tensile test was performed on a specimen with a circular c…

A tensile test was performed on a specimen with a circular cross section. The diameter was measured to be 0.880 inch. Two marks were made along the length of the specimen and were measured to be 2.500 inches apart. This distance is defined as the gage length, and all length measurements were made between the two marks. The specimen was loaded to failure. Fracture occurred at a load of 17,500 pounds. The specimen was then reassembled, and the diameter and gage length were measured to be 0.406 inch and 2.684 inches. Determine the ultimate tensile stress.