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Pipe designers are typically tasked with routing pipe networks based on spatial constraints, flow limitations and other requirements, such as cost-effectiveness. In many cases, a thorough pipe stress analysis is not carried out until the initial designs have been drawn up. However, these initial designs are often “stiff” systems that can result in high stresses in the piping network. Modifying these initial designs takes time, and unless a comprehensive pipe stress analysis is carried out in parallel with the piping design, project deadlines can be missed and budgets overrun.

PDL engineers are able to carry out advanced pipe stress analysis on behalf of our clients in order to ensure any pipe design is compliant with the relevant codes and standards. Using Caesar II, a leading software in the analysis of pipe networks, our engineers are able to determine operational stresses and deflections, which can then be used in subsequent design calculations for the pipe support network. Typically, our pipe stress analysis will cover the following load cases:

  • Static: Any loading applied directly onto the pipework is analysed and the resultant stresses and deflections determined.
  • Thermal: The cyclic expansion/contraction of piping networks is analysed as the temperature distribution is changed throughout the system.
  • Wind: Any exposed pipework is fully analysed for wind loading in accordance with either British Standards or Eurocodes.
  • Solar Radiation: The effect of direct sunlight on exposed pipe is analysed and the resultant temperature change fully accounted for.
  • Seismic: If the pipework is situated in an area prone to earthquakes, a full seismic analysis is carried out to determine the seismic stresses in the piping system.

At PDL, our engineers are constantly striving to develop new methodologies for analysing complex engineering problems. As such, our pipe stress capability extends beyond standard steel structures and includes composite pipelines (such as glass-reinforced plastic) and vibration-induced stress analyses.

Pipe Stress Analysis Caesar II

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Keywords for: Pipe Stress Analysis

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