1 April 2016 Helical guided waves in liquid-filled cylindrical shells subjected to static pressurization stress
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Abstract
Helical guided waves in pipelines are studied under the effects of pressurization stresses from a contained liquid. The pipeline is approximated by an “unwrapped” plate waveguide, and a transfer matrix method is used to solve for guided wave velocity and attenuation dispersion curves in a multilayered plate waveguide subject to an arbitrary triaxial state of initial stress. The matrix-based model is able to incorporate both elastic and viscoelastic solid materials, as well as approximate non-uniform distributions in initial stress through the thickness of a waveguide. Experiments on a steel pipe filled with pressurized water are carried out to validate the modeling approach.
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Brennan Dubuc, Brennan Dubuc, Arvin Ebrahimkhanlou, Arvin Ebrahimkhanlou, Salvatore Salamone, Salvatore Salamone, "Helical guided waves in liquid-filled cylindrical shells subjected to static pressurization stress", Proc. SPIE 9805, Health Monitoring of Structural and Biological Systems 2016, 98050T (1 April 2016); doi: 10.1117/12.2218897; https://doi.org/10.1117/12.2218897
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