Results 11 to 20 of about 12,040 (234)

Blast Quantification Using Hopkinson Pressure Bars [PDF]

open access: yesJournal of Visualized Experiments, 2016
Near-field blast load measurement presents an issue to many sensor types as they must endure very aggressive environments and be able to measure pressures up to many hundreds of megapascals. In this respect the simplicity of the Hopkinson pressure bar has a major advantage in that while the measurement end of the Hopkinson bar can endure and be exposed
Clarke, S.D.   +8 more
openaire   +3 more sources

A Review of the Torsional Split Hopkinson Bar [PDF]

open access: yesAdvances in Civil Engineering, 2018
Mechanical behavior of materials at medium and high strain rates (101∼104 sāˆ’1) is the foundation of developing mechanical theories, building material models, and promoting engineering design and construction. The torsional split Hopkinson bar (TSHB) is an effective experimental technique for measuring the pure shear mechanical properties of materials ...
Xiao Yu   +4 more
openaire   +3 more sources

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

open access: yesData, 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

Application of the Photon Doppler Velocimetry (PDV) technique in tension-torsion Hopkinson bar experiments [PDF]

open access: yesEPJ Web of Conferences, 2021
The Photon Doppler Velocimetry (PDV) technique is used to capture simultaneously propagating elastic waves of longitudinal and shear nature in a Tension-Torsion Hopkinson Bar (TTHB) apparatus.
Farbaniec Lukasz   +9 more
doaj   +1 more source

Feasibility Study of a Combined Tension-Torsion Hopkinson Bar [PDF]

open access: yesEPJ Web of Conferences, 2021
The increasing interest to improve the description of the plastic behavior and the fracture prediction for ductile materials under complex loading conditions conducted the researchers to overcome the J2 plasticity theory.
Sasso Marco, Mancini Edoardo
doaj   +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

Two-wave photon Doppler velocimetry measurements in direct impact Hopkinson pressure bar experiments

open access: yesEPJ Web of Conferences, 2015
Direct impact Hopkinson pressure bar systems offer many potential advantages over split Hopkinson pressure bars, including access to higher strain rates, higher strains for equivalent striker velocity and system length, lower dispersion and faster ...
Lea Lewis J., Jardine Andrew P.
doaj   +1 more source

Development of a strain-gage installation method for high-speed impact of strikers on a Split Hopkinson bar apparatus

open access: yesEPJ Web of Conferences, 2012
When designing a split Hopkinson system, the yield strength of the selected pressure bar material determines the maximum stress attainable within deforming samples and also, the maximum striker velocity that is usable to prevent plasticity in bars.
Arsenault R., Bolduc M.
doaj   +1 more source

Diagnostic techniques in deflagration and detonation studies [PDF]

open access: yes, 2015
Advances in experimental, high-speed techniques can be used to explore the processes occurring within energetic materials. This review describes techniques used to study a wide range of processes: hot-spot formation, ignition thresholds, deflagration ...
Field, JE   +3 more
core   +1 more source

The variation in transparency of amniotic membrane used in ocular surface regeneration [PDF]

open access: yes, 2010
Background/aims: Scant consideration has been given to the variation in structure of the human amniotic membrane (AM) at source or to the significance such differences might have on its clinical transparency.
Chen, Bo   +7 more
core   +1 more source

Home - About - Disclaimer - Privacy