Simulation of thick-walled submarine pipeline collapse under bending and hydrostatic pressure
Book
·
OSTI ID:434030
The problem of submarine pipeline buckling or collapse as a result of bending and external pressure is investigated by numerical modeling using finite element analysis. The model takes into account the initial variability of material properties, the effect of cold-work on the pipe material properties and initial geometric imperfections. It is capable of simulating the nonlinear behavior, and structural instability due to the combined effects of bending and pressure. The solution algorithm and verification against experimental results are presented. In addition, a deterministic model for collapse under combined pressure and bending based on measured stress-strain behavior and pipe geometry is derived. Results from both finite element and deterministic models for different parameter sensitivities are examined.
- OSTI ID:
- 434030
- Report Number(s):
- CONF-960525--
- Country of Publication:
- United States
- Language:
- English
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