A typical aluminum-alloy scuba diving tank is shown in the figure. The outside diameter of the tank is 155mm and the wall thickness is 12mm. If the air in the tank is pressurized to 19.7MPA, determine: (a) the longitudinal and hoop stresses in the wall of the tank. (b) the maximum shear stress in the plane of the cylinder wall. (c) the absolute maximum shear stress on the outer surface of the cylindrical wall. Answers: (a) Olong= i MPa MPa Ohoop = (b) Tmax = i MPa (c) Tabs max = i MPа

An 8-mm thick steel tank has an outside diameter of 600 mm. It is internal pressure of 2.40 MPa. Determine the maximum subjected to stress in the tank. an

Two wooden studs with cross-sectional dimensions 45×145 mm2 are glued together to form a beam with a T-sectionaccording to the figure on the right and loaded according to the figure on the left. The beam is loaded in its rigiddirection.a) Calculate the moment of inertia of the cross-section about the centroid axis (z-axis).b) Calculate the maximum normal stress in the beam.c) Sketch the normal stress distribution over the most loaded cross-section of the beam. All calculations must be clear and handwritten, draw and check so that the answers are correct

Q3.For the stress state shown below: 300 MPa 100 MPa 100 MPa → 200 MPa 200 MPa - 100 MPa 100 MPa 300 MPa (a) Plot Mohr's circle for the stress state. (b) Calculate the principal stresses and their orientation with respect to ther axis? (c) Using your answer from (b) to help you, plot Mohr's circle for strain.