Learn how to answer mathematics and engineering questions on this blog.
Question:
A thin cylinder of 3m diameter is subjected to an internal pressure of 2.5MN/m^2. Using a factor of safety of 2.2 and a yield stress of 300MN/m^2, calculate the wall thickness based on the
a) Tresca
b) von-Mises yield criteria
Answer:
We know:
Hoop Stress:
Longitudinal Stress:
Tresca stress model
As both stress values are positive, the second stress figure is set to zero to comply with Tresca Yield Criteria:
Von-Mises:
Question: The direct stresses acting on an element of material, on orthogonal planes, are 85N/mm^2 (tensile) and 45N/mm^2 (tensile)...
Question: A hole in a pressure vessel end plate repair casting is being drilled using a radial arm drill. The distance from the drill...
Question: The small DC circuit shown below has failed in service owing to excessive currents. A review of the circuit voltages and...
Comments