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Three dimensional dynamics of pipelines buried in backfilled trenches due to oblique incidence of body waves
Abstract Dynamic response of pipelines buried in a back-filled rectangular trench in a semi-infinite medium has been investigated. The pipelines are modelled as long cylindrical shells of small thickness. By using the boundary integral representation and finite element method, we have studied the three-dimensional response to account for either plane wave incident at an arbitrary angle to the pipe-axis. Numerical results are presented for the normal displacements, displacements along pipe-axis, and the hoop stresses in the pipe wall. It is shown that the response depends critically on the back-filled material as well as on the directions of propagation of the incident waves.
Three dimensional dynamics of pipelines buried in backfilled trenches due to oblique incidence of body waves
Abstract Dynamic response of pipelines buried in a back-filled rectangular trench in a semi-infinite medium has been investigated. The pipelines are modelled as long cylindrical shells of small thickness. By using the boundary integral representation and finite element method, we have studied the three-dimensional response to account for either plane wave incident at an arbitrary angle to the pipe-axis. Numerical results are presented for the normal displacements, displacements along pipe-axis, and the hoop stresses in the pipe wall. It is shown that the response depends critically on the back-filled material as well as on the directions of propagation of the incident waves.
Three dimensional dynamics of pipelines buried in backfilled trenches due to oblique incidence of body waves
Liu, S.W. (author) / Datta, S.K. (author) / Khair, K.R. (author) / Shah, A.H. (author)
Soil Dynamics and Earthquake Engineering ; 10 ; 182-191
1991-01-01
10 pages
Article (Journal)
Electronic Resource
English
pipelines , dynamics , trench , seismic waves
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