R
Ramzi Othman
Researcher at King Abdulaziz University
Publications - 90
Citations - 1656
Ramzi Othman is an academic researcher from King Abdulaziz University. The author has contributed to research in topics: Strain rate & Split-Hopkinson pressure bar. The author has an hindex of 23, co-authored 87 publications receiving 1409 citations. Previous affiliations of Ramzi Othman include École Centrale Paris & École centrale de Nantes.
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A numerical model for ground-borne vibrations from underground railway traffic based on a periodic finite element–boundary element formulation
Geert Degrande,Didier Clouteau,Ramzi Othman,Maarten Arnst,H Chebli,Ralf Klein,P Chatterjee,Bram Janssens +7 more
TL;DR: In this article, a numerical model is presented to predict vibrations in the free field from excitation due to metro trains in tunnels, where the three-dimensional dynamic tunnel-soil interaction problem is solved with a subdomain formulation, using a finite element formulation for the tunnel and a boundary element method for the soil.
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An optimisation method for separating and rebuilding one-dimensional dispersive waves from multi-point measurements. Application to elastic or viscoelastic bars
TL;DR: In this article, a wave dispersion-based method for measuring the force and displacement at any station on a bar from strain or velocity measurements performed at various places on the bar is presented.
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Experimental investigation of the crash energy absorption of 2.5D-braided thermoplastic composite tubes
TL;DR: In this article, the crash energy absorption performance of 2.5D braided thermoplastic composite tubes was investigated, and three crushing modes were observed: splaying, progressive folding and fragmentation.
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A modified servo-hydraulic machine for testing at intermediate strain rates
TL;DR: In this article, a modified servo-hydraulic machine is used to estimate the mechanical properties of materials at intermediate strain rates (1-200/s) for impact engineering.
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Experimental investigation of the shear dynamic behavior of double-lap adhesively bonded joints on a wide range of strain rates
TL;DR: In this article, a double-lap shear sample is proposed and a bonding procedure is established for adhesively bonded assemblies under dynamic shear loading ranging from quasi-static (10 −4 ǫs −1 ) up to high (10 4 Ãǫ s − 1 ) strain rates.