Computing the effect of plastic deformation of piping on pressure transient propagation. [LMFBR]

Conference · Fri Dec 31 23:00:00 EST 1976

OSTI ID:5154190

Youngdahl, C K; Kot, C A

The computer program PTA-1 performs pressure-transient analysis of large piping networks using the one-dimensional method of characteristics applied to a fluid-hammer formulation. The effect of elastic-plastic deformation of piping on pulse propagation is included in the computation. Each pipe is modeled as a series of rings, neglecting axial effects, bending moments, and inertia. The fluid wave speed is a function of pipe deformation and, consequently, of position and time. Comparison with existing experimental data indicate that this simple fluid-structure interaction model gives suprisingly accurate results for both pressure histories in the fluid and strain histories in the piping.

• Research Organization: Argonne National Lab., Ill. (USA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5154190
• Report Number(s): CONF-771120-20
• Country of Publication: United States
• Language: English

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