Results 31 to 40 of about 24,236 (228)

Performance characteristics of Hopkinson’s set-up pneumatic launcher

Acta Polytechnica, 2021
The paper presents a performance characteristics of a pneumatic launcher, which is an important element of the split Hopkinson bar set-up (SHPB) at the Department of Military Engineering and Infrastructure (the Military University of Technology in Warsaw)
Kamil Sobczyk, Leopold Kruszka, Ryszard Chmielewski, Ryszard Rekucki   +3 more
doaj   +1 more source

The Direct Impact Method for Studying Dynamic Behavior of ‎Viscoplastic Materials [PDF]

Journal of Applied and Computational Mechanics, 2022
This work is devoted to the direct impact method for determining the deformation diagrams of viscoplastic materials at high strain rates. As the conventional Split Hopkinson Pressure Bar method, the direct impact method is based on the measuring bar ...
Artem Basalin, Aleksandr Konstantinov, Leonid Igumnov, Alexandr Belov, Anatoliy Bragov, Victor Eremeev   +5 more
doaj   +1 more source

Development of “Dropkinson” Bar for Intermediate Strain-rate Testing

EPJ Web of Conferences, 2018
A new apparatus – “Dropkinson Bar” – has been successfully developed for material property characterization at intermediate strain rates. This Dropkinson bar combines a drop table and a Hopkinson bar.
Song Bo, Sanborn Brett, Heister Jack, Everett Randy, Martinez Thomas, Groves Gary, Johnson Evan, Kenney Dennis, Knight Marlene, Spletzer Matthew   +9 more
doaj   +1 more source

Manual of GUI Program Governing ABAQUS Simulations of Bar Impact Test for Calibrating Bar Properties, Measured Strain, and Impact Velocity

Data, 2023
Bar impact instruments, such as the (split) Hopkinson bars and direct impact Hopkinson bars, measure blast/impact waves or mechanical properties of materials at high strain rates.
Hyunho Shin
doaj   +1 more source

First application of the 3D-MHB on dynamic compressive behavior of UHPC

EPJ Web of Conferences, 2015
In order to study the dynamic behaviour of material in confined conditions a new machine was conceived and called 3D-Modified Hopkinson Bar (3D-MHB). It is a Modified Hopkinson Bar apparatus designed to apply dynamic loading in materials having a tri ...
Cadoni Ezio, Dotta Matteo, Forni Daniele, Riganti Gianmario, Albertini Carlo   +4 more
doaj   +1 more source

Formation Mechanism of BN Flakes on MWCNTs. [PDF]

Small
This work presents a novel heterostructured h‐BN flake‐coating on multi‐wall carbon nanotubes synthesized via CVD. It details structural characterization supported by molecular dynamics simulations. The mechanism of BN flake formation, stress‐induced buckling, and van der Waals heterostructure design is discussed, highlighting applications in thermal ...
Liu T, Yan X, Hopkinson DG, Allen CS, Maciejewska BM, Wilson M, Grobert N.   +6 more
europepmc   +2 more sources

Large scale high strain-rate tests of concrete

EPJ Web of Conferences, 2012
This work presents the stages of development of some innovative equipment, based on Hopkinson bar techniques, for performing large scale dynamic tests of concrete specimens.
Kiefer R., Magonette G., Viaccoz B., Solomos G., Peroni M.   +4 more
doaj   +1 more source

Split Hopkinson bar tests on metaconcrete: modeling and numerical simulations [PDF]

EPJ Web of Conferences, 2021
The work deals with the dynamic characterization of metaconcrete, a mechanical metamaterial with locally resonant inclusions and unconventional dynamic performance.
Briccola Deborah, Cadoni Ezio
doaj   +1 more source

SPH method applied to high speed cutting modelling [PDF]

, 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, Espinosa, Christine, Limido, Jérôme, Mabru, Catherine, Salaün, Michel   +4 more
core   +3 more sources

Mechanical Response of HPFRCC in Tension and Compression at High Strain Rate and High Temperature

Engineering Transactions, 2014
The mechanical response of High Performance Fibre-Reinforced Cementitious Composite (HPFRCC) has been analyzed at high strain rates and high temperature.
E. CADONI, A. M. BRAGOV, A. CAVERZAN, M. DI PRISCO, A. KONSTANTINOV, A. LOMUNOV   +5 more
doaj   +1 more source