Results 81 to 90 of about 4,813 (219)
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
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
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
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
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]
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
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Experimental Work for Bar Straightness Effect Evaluation of Split Hopkinson Pressure Bar
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)
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
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
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

