Problem 1) Figure shows an axially loaded step bar with the cross-sectional areas and forces indicated.
a) Sketch the load diagram and the axial force diagram for the bar.
b) Determine the axial stress on each segment in the axial force diagram.
c) What is the maximum axial stress in the bar?
Problem 2) Figure shows a solid shaft torque loads.
a) Sketch the load diagram and the torque diagram for the shaft.
b) Determine the torsional on each segment in the torque diagram id shaft diameter is 2 inches.
c) What is the maximum torsional stress in the shaft?
Problem 3) Figure shows the stress-strain graph of a material. From the graph, estimate the following:
a) Proportional limit
b) Yield strength
c) Tensile strength
d) Fracture or rupture strength
e) Elastic modulus