The ratchetting of plain carbon steel pressurized cylinders subjected to simulated seismic bending: The effect of the D/t ratio and comparison with finite element predictions
Restricted accessResearch articleFirst published online January, 1998
The ratchetting of plain carbon steel pressurized cylinders subjected to simulated seismic bending: The effect of the D/t ratio and comparison with finite element predictions
A series of simulated seismic bending tests have been undertaken on pressurized cylinders having diameter-thickness ratios in the range 10 ≤ Dm/t ≤ 28. Ratchetting of the cylinder wall has been observed and recorded in the hoop direction. Finite element analysis which models the experimental set-up and the cylinder material has been undertaken. The results obtained from the finite element work and from a previously available analytical solution both overestimate the experimentally obtained ratchetting rates considerably. The dynamic bending moment necessary to initiate ratchetting is, however, well predicted.
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