The effect of diameter/thickness ratio on the ratchetting behaviour of pressurised plain pipework subjected to simulated seismic loading
Source abstract
Abstract
Abstract A series of five tests have been conducted using cylindrical specimens having mean diameter/thickness (Dm lt) ratios in the range 9≤Dm lt ≤25. The cylinders were subjected to an internal pressure (calculated as the design pressure for each cylinder) and alternating bending moments at frequencies typical of seismic events. Hoop ratchetting was recorded in all cylinders at bending moments greater than the yield moment. The moment level for the onset of ratchetting was found to be in agreement with theoretical predictions. The variations in behaviour caused by changing D/t ratios is discussed.
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Research context
OpenAlex topics: Structural Load-Bearing Analysis · Fatigue and fracture mechanics · Mechanical stress and fatigue analysis
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References (10)
Show source-provided references
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