Author
A P Moser
Bio: A P Moser is an academic researcher. The author has contributed to research in topics: Embedment. The author has an hindex of 1, co-authored 1 publications receiving 231 citations.
Topics: Embedment
Papers
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01 Jan 1990
TL;DR: In this paper, external load design of gravity flow pipes and pressure pipe design of pressure pipe buried pipe products are discussed. But they focus on external load and external load is not considered in this paper.
Abstract: Introduction and Overview External Loads Design of Gravity Flow Pipes Design of Pressure Pipes Buried Pipe Products
235 citations
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TL;DR: A comprehensive overview of the physical/mechanical models that have been developed to improve the understanding of the structural performance of water mains can be found in this paper, where the effect of temperature on pipe breakage is discussed from three angles.
343 citations
TL;DR: In this article, the transverse response of underground cylindrical cavities to incident SV waves is investigated, and analytical solutions are derived for unlined cavities embedded within an elastic half-space using Fourier-Bessel series and a convex approximation of the halfspace free surface.
Abstract: The transverse response of underground cylindrical cavities to incident SV waves is investigated. Analytical solutions are derived for unlined cavities embedded within an elastic half-space using Fourier–Bessel series and a convex approximation of the half-space free surface. The computed displacements at the half-space free surface and the tangential stresses on the cavity are compared with the results of previous investigations. The analytical solutions are extended to formulate approximate solutions for assessing hoop stresses within cavity liners impinged by low-frequency waves having wavelengths much longer than the cavity diameter. The approximate solutions are compared to existing numerical solutions, and used to evaluate the dynamic response of a flexible buried pipe shaken by the 1994 Northridge earthquake. The proposed approximate model for cavity liners is useful for the seismic analysis of underground pipes and small-diameter tunnels. Copyright © 2001 John Wiley & Sons, Ltd.
114 citations
TL;DR: In this paper, a simple finite element model, which uses beam elements for the pipeline and discrete nonlinear springs for the soil, has been proposed to analyse buried pipeline subjected to reverse fault motion.
114 citations
TL;DR: In this article, the authors present a comprehensive approach to simulate an explosion occurring inside a buried axisymmetric lined cavity, which considers all the stages of the process: detonation of the internal charge, the shock wave propagation in the internal gas and its following interaction with the cavity's shell lining including multiple reflections; soil-structure dynamic interaction, including multiple gap opening/closure and wave propagation.
88 citations
TL;DR: There are significant differences on the mechanical properties between urogynecology meshes under two types of mechanical tests.
Abstract: The aim of this study was the comparison of the stiffness of different meshes under two types of mechanical tests Five different mesh types were mechanically tested The methods used consisted on uniaxial tension test (tensile stiffness) and tape ring tests, experimental continuous compression of the mesh loops (flexural stiffness) The most significant difference of tensile stiffness behaviour appears between Aris™ and TVTO™ From the analysis of the experimental data, we divided the flexural stiffness, in two main groups The first group includes Auto Suture™ and Aris™ meshes The two meshes seem to have a similar flexural behaviour The second group includes TVTO™, Uretex™ and Avaulta™ The difference between these two groups is clearly evident comparing TVTO™ and Aris™ This study shows that there are significant differences on the mechanical properties between urogynecology meshes
70 citations