Question 1 1 pts 1. Consider a circular rod with a diameter of 2 inches and...
question 1 and 2 please 1. A one-inch diameter steel rod is used as a pin-pin connected compression member. Calculate the critical load using Euler's formula. The proportional limit for the steel is 36,000 psi and the modulus of elasticity is 30,000,000 psi, (the radius of gyration for a circular section is d/4). Assume the length of the rod to be: A. 1.5 feet B. 4.5 feet Comment on the results of A and B. 2. A one-inch diameter steel...
Q-1 A solid circular rod with a diameter d = 18 mm is shown in Figure Q-3. The rod is made of an aluminum alloy that has an elastic modulus E = 72 GPa and a Poisson's ratio v=0.32. When subjected to the axial load P, the diameter of the rod decreases by 0.025 mm. For a factor of safety of 1.75, a) Determine the magnitude of the safe allowable load P. pts.] b) If we have a 12 mm...
Q1. A circular rod of 12 mm diameter was tested for tension. The total elongation on a 300 mm length was 0.22 mm under a tensile load of 17 KN. Find the value of E. (2.5 Marks) Answer: Q2. A prismatic bar has a cross section of 25 mm x 50 mm and a length of 2m under an axial force of 90 KN. The measured elongation of the bar is 1.5 mm. Compute the tensile stress and strain in...
According to machine elements 1 Q-1 A solid circular rod with a diameter d= 18 mm is shown in Figure Q-3. The rod is made of an aluminum alloy that has an elastic modulus E = 72 GPa and a Poisson's ratio v = 0.32. When subjected to the axial load P, the diameter of the rod decreases by 0.025 mm. For a factor of safety of 1.75, a) Determine the magnitude of the safe allowable load P. [18 pts.]...
You have 5 in diameter hydraulic cylinder 30 inches long, with a 2 in rod. What is the maximum load in lbs that can be exerted on the power stroke with a 3000 psi pump
2. A helical compression spring is made from No. 8 steel wire and is to carry a 100 lb static load at a deflection of 1 inch. The outside coil diameter of the spring is 0.972 inches. The spring ends are squared. Assume the torsional yield strength of the wire is 80000 psi, and the shear modulus is 11.4 Mpsi, determine (a) The static load corresponding to the yield strength. (b) The deflection that would be caused by the load...
Figure Q1 The jib crane is pinned at A and supports a chain hoist that can travel along the bottom flange of the a) the force in rod BC b) the minimum diameter of rod BC (to the nearest 5 mm). c) the minimum diameter of pin B (to the nearest 5 mm). The material properties are listed in Table Q2 and use factor of safety of FS-2 (10 marks) beam boist Figure Q2 Table Q2: Material properties (MPa) Shear...
1. (15 pts) Athin walled tube of circular cross-section has an inner diameter of 60 mm, thickness of 2 mm, and a length of 3 m. a. Determine the maximum torque the tube can withstand if the angle of twist is limited to 6 degrees. b. If the tube is instead capped on both ends and pressurized to p - 20 MPa, calculate the circumferential and longitudinal stresses in the tube. Use G = 15 GPa
Consider a circular grill whose diameter is 24 inches. The bottom of the grill is covered with hot coal bricks at 1250F, while the wire mesh on top of the grill is covered with steaks initially at 41F. The distance between the coal bricks and the steaks is 12 inches. Tinfoil (which is totally reflective) is wrapped around the open part of the grill so no radiation escapes Using table 21-3 of the text find the view factor from the...
2. (10%) Consider a circular diaphragm with a diameter 2a and a square diaphragm with an edge length of 2a. Under the same pressure P, (1) which one experiences larger stress? (2) which one experiences larger displacement? Assume both diaphragms have the same thickness and are made of the same material