Results 41 to 50 of about 11,857 (209)

One-dimensional dynamic compressive behavior of dry calcareous sand at high strain rates

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2019
Calcareous sand has distinct characteristics in comparison with silica sand, such as dynamic behavior at high strain rates (HSRs). This is closely related to pile driving, aircraft wheel loading and mining activities.
Yaru Lv, Jiagui Liu, Ziming Xiong
doaj   +1 more source

Impact Testing of 3D Re-Entrant Honeycomb Polyamide Structure Using Split Hopkinson Pressure Bar

open access: yesApplied Sciences, 2021
In this study, a total of 30 3D re-entrant honeycomb specimens made of polyamide were fabricated with various configurations by using the additive manufacturing (AM) technique.
Jiangping Chen, Weijun Tao, Shumeng Pang
doaj   +1 more source

The high strain-rate behaviour of three molecular weights of polyethylene examined with a magnesium alloy split-Hopkinson pressure bar

open access: yes, 2013
A traditional split-Hopkinson pressure bar system has been modified by the addition of ZK60A magnesium alloy pressure bars in order to increase the resolution of data when examining specimens of low-density, high-density and ultra-high molecular weight ...
Hughes, Foz   +2 more
core   +1 more source

Electromagnetic Compressive Split Hopkinson Bar [PDF]

open access: yes
This paper proposes a new design for the compressive split Hopkinson bar that makes use of the intense pressure created in a transient magnetic field formed by the passage of a pulse of electric current through a series of coils.
Martins, P. A. F.   +2 more
core   +1 more source

Experimental study of the high strain rate shear behaviour of Ti6Al4V [PDF]

open access: yes, 2011
Three different high strain rate shear test techniques are applied on the titanium alloy Ti6Al4V. Two techniques for testing of bulk materials and one technique for sheet materials are used: torsion of thin-walled tubes, compression of hat-shaped ...
Degrieck, Joris   +2 more
core   +2 more sources

Characterisation of dynamic behaviour of alumina ceramics: evaluation of stress uniformity [PDF]

open access: yes, 2015
Accurate characterisation of dynamic behaviour of ceramics requires the reliable split-Hopkinson pressure bar (SHPB) technique and the condition of uniaxial homogeneous specimen deformation.
Li, Peifeng, Wang, Zhiyong
core   +2 more sources

Temporal characterization of rock dynamic destruction [PDF]

open access: yes, 2019
Dynamic strength tests published in literature have been analysed by structuraltemporal damage criteria. Parameter τ - incubation time - describing material stability behaviour under high-rate influences have been estimated for Kimachi sandstone, Inada ...
Martemyanov, A. N., Petrov, Yu V.
core  

Séparation et reconstruction des ondes dans les barres élastiques et viscoélastiques à partir de mesures redondantes

open access: yes, 2001
International audienceWhen using a classical SHPB (Split Hopkinson Pressure Bar) set-up, the useful measuring time is limited by the need of separating the waves propagating in opposite directions.
Bussac, Marie-Noëlle   +3 more
core   +4 more sources

SPH method applied to high speed cutting modelling [PDF]

open access: yes, 2007
The purpose of this study is to introduce a new approach of high speed cutting numerical modelling. A Lagrangian smoothed particle hydrodynamics (SPH)- based model is arried out using the Ls-Dyna software.
Chieragatti, Rémy   +4 more
core   +3 more sources

Commissioning of universal Split Hopkinson Bar for dynamic compression and tension experiments

open access: yesActa Polytechnica CTU Proceedings
Split Hopkinson Bar is an experimental apparatus designed for acquiring material properties in dynamic regime. The apparatus is usually constructed as a single purpose experimental device for specific type of loading, most commonly either compression ...
Lukáš Kocian   +4 more
doaj   +1 more source

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