Results 21 to 30 of about 3,663,056 (216)

Fracture Analysis of Ultrahigh-Strength Steel Based on Split Hopkinson Pressure Bar Test

open access: yesMetals, 2022
Impact loading is an important cause of fracture failure of ultrahigh-strength steel parts during service. Revealing the fracture mechanism of ultrahigh-strength steel under impact loading has important reference significance for the material preparation,
Shihong Xiao   +5 more
doaj   +1 more source

On the use of a viscoelastic split hopkinson pressure bar

open access: yesInternational Journal of Impact Engineering, 1997
To test weak materials such as foams at high strain rates, the use of a Split Hopkinson Pressure Bar (SHPB) setup made of low impedance bars, which are mostly viscoelastic, is indispensable. In this paper a detailed study of the technical problems of such a viscoelastic setup related to the measurement and to the loading conditions is offered.
Zhao, H.   +2 more
openaire   +3 more sources

gauge_factor.py - A Python algorithm for calculating the gauge factor of the input bar for split-Hopkinson pressure bar experiments.

open access: yes, 2023
DESCRIPTION: Uses the recorded signals from the strain gauges of the input bar to calculate the gauge factor for split-Hopkinson pressure bar experiments. PYTHON SOFTWARE: Van Lerberghe, A., Li, K. S. O. (2023) gauge_factor.py - A Python algorithm for
Kin Shing Oswald Li (9687425)   +1 more
core   +1 more source

Round-Robin test of split Hopkinson pressure bar

open access: yesInternational Journal of Impact Engineering, 2019
Abstract A Round-Robin test using split Hopkinson pressure bars (SHPBs) has been conducted by four universities: Swinburne University of Technology (SUT), Australia; University of Sao Paulo (USP), Brazil; University of Cape Town (UCT), South Africa; and Nanyang Technological University (NTU), Singapore. Each university had different sets of SHPBs and
Muhammad A. Kariem   +8 more
openaire   +3 more sources

Split‐Hopkinson‐Pressure‐Bar simulations using MPM [PDF]

open access: yesPAMM, 2021
AbstractThe material point method (MPM) represents a discretization method that combines the beneficial aspects of a Lagrangian representation of material within an Eulerian solution scheme. Deformable bodies are discretized with material points that carry mass, kinematical quantities such as velocity and material history variables. The material points
Maassen, Sascha F.   +4 more
openaire   +1 more source

3D Hopkinson bar: new experiments for dynamic testing on soils [PDF]

open access: yes, 1999
International audienceThe direct analysis of the dynamic response of materials is possible using Split Hopkinson pressure bar method. For soils, it has to be adapted since the specimen has generally poor mechanical properties.
Semblat, Jean-François   +2 more
core   +5 more sources

Numerical Modeling of a Split Hopkinson Pressure Bar Test

open access: yesEuropean Journal of Engineering and Technology Research, 2021
In this work, a one-dimensional simplified model was developed to predict stress, strain, and strain-rate in high strain rates Hopkinson pressure bar experiments, namely, between 500-5000/s. To this goal, a one-dimensional model for Hokinson bar tests was developed based on analyses of wave propagation in bars and assuming the specimen is under ...
Ahmad R. Aljohani   +2 more
openaire   +3 more sources

A revised Ladevèze criteria for carbon fiber reinforced laminated plates

open access: yesData in Brief, 2019
All parameters of revised Ladevèze failure criterion in Table 1 were determined based on mechanical tests which mainly include quasi-static tensile experiments, quasi-static compressive experiments, quasi-static tensile cyclic loading experiments, the ...
Cunxian Wang   +4 more
doaj   +1 more source

Polypropylene foam behaviour under dynamic loadings: Strain rate, density and microstructure effects [PDF]

open access: yes, 2009
Expanded polypropylene foams (EPP) can be used to absorb shock energy. The performance of these foams has to be studied as a function of several parameters such as density, microstructure and also the strain rate imposed during dynamic loading.
LATAILLADE, Jean-Luc   +2 more
core   +1 more source

Investigation of copper lattice structures using a Split Hopkinson Pressure Bar

open access: yes, 2022
Art. e202100155, 3 S.The paper deals with experiments on 3D printed lattices in a Split Hopkinson Pressure Bar. An energy-based evaluation of the measured wave signals enables us to compare the damping properties of two different copper lattice ...
Dehm, Gerhard   +4 more
core   +1 more source

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