Results 81 to 90 of about 4,813 (219)

Investigating the use of rubber to attenuate the effect of blast load applied to a surrogate lower leg

open access: yes, 2008
Includes abstract.Includes bibliographical references (leaves 191-197).Landmines are the epitome of the perfect soldier: always ready, never tiring. Landmines also do not choose their victims - it may very well be an armed and protected soldier or an ...
Ungerer, Delmarie
core  

Stress Redistribution Mechanisms and Subsidence Control of Fluidized Gangue Backfilling in Underground Coal Mining: Integrated Experimental and Numerical Investigation

open access: yesEnergy Science &Engineering, Volume 14, Issue 5, Page 2476-2498, May 2026.
Fluidized gangue backfilling controls mining subsidence through stress redistribution in composite backfill‐pillar systems, reducing surface settlement and stress concentrations. Multi‐scale experimental and numerical analysis provides quantitative design parameters for optimizing ground control in sustainable underground coal mining operations ...
Weilong Zhang   +11 more
wiley   +1 more source

Effect of structurally-induced lateral confinement on split Hopkinson pressure bar test specimens of concrete-like materials

open access: yesEPJ Web of Conferences, 2015
In dynamic testing of concrete-like materials, there is a need in distinguishing structural effects from genuine strain-rate effects. In this paper, this generic problem is studied by numerical simulations based on a phenomenological material model ...
Flores-Johnson E.A., Li Q.M.
doaj   +1 more source

Numerical Simulation for Bar Straightness Effect in Split Hopkinson Pressure Bar

open access: yesProcedia Engineering, 2017
Abstract Bars alignment in a Split Hopkinson Pressure Bar influences the quality of signal recorded during experiments, and thus affects the data of material properties being measured. There are some parameters directly related to the bars alignment such as their straightness, the impact face parallelism, and the neutral axis offset.
Afdhal,   +4 more
openaire   +1 more source

Split Hopkinson pressure bar measurements of polymer energy dissipation and identification of the glass transition condition

open access: yes
We explore the idea of using a split Hopkinson pressure bar to measure polymer energy dissipation. For an elastic specimen the sum of the mechanical energies within the transmitted and reflected pressure waves ought to be equal to mechanical energy in ...

core   +1 more source

Dynamic Increase Factors for High Performance Concrete in Compression using Split Hopkinson Pressure Bar [PDF]

open access: yes, 2007
This paper provides dynamic increase factors (DIF) in compression for two different High Performance Concretes (HPC), 100 MPa and 160 MPa, respectively. In the experimental investigation 2 different Split Hopkinson Pressure Bars are used in order to test
Riisgaard, Benjamin   +4 more
core  

Experimental Work for Bar Straightness Effect Evaluation of Split Hopkinson Pressure Bar

open access: yes, 2021
Bar straightness is one of several factors that can affect the quality of the strain wave signal in a Split Hopkinson Pressure Bar (SHPB). Recently, it was found that the bar components of the SHPB at the Lightweight Structures Laboratory displayed a ...
Dirgantara, Tatacipta   +2 more
core   +1 more source

Compressive Split Hopkinson Pressure Bar (SHPB)

open access: yes, 2010
The intent of this report is to allow the reader has a clear idea and concept with the theory and technique applied on the Split Hopkinson Pressure Bar (SHPB).
Kam, Jihao
core  

On the actuation of the split Hopkinson pressure bar

open access: yes, 2021
LAUREA MAGISTRALELa barra frazionata di Hopkinson è uno strumento usato per l’analisi delle proprietà fisiche di materiali ad alta velocità di deformazione (strain rate).
CAMINITI, ANTONINO MARIA GIACOMO
core  

Strain rate effects on tensile strength of iron green bodies

open access: yesEPJ Web of Conferences, 2015
Impact tensile strength of iron green bodies with densities of 7.2 and 7.4 g/cm3 was examined by Brazilian test using the split-Hopkinson pressure bar (Kolsky bar) method.
Nishida Masahiro   +4 more
doaj   +1 more source

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