Results 1 to 10 of about 11,348 (228)

Research on Dynamic Strength and Inertia Effect of Concrete Materials Based on Large-Diameter Split Hopkinson Pressure Bar Test. [PDF]

open access: yesMaterials (Basel), 2022
The Split Hopkinson Pressure Bar (SHPB) test device is an important tool to study the dynamic characteristics of concrete materials. Inertial effect is one of the main factors that cause inaccurate results in SHPB tests of concrete materials.
Sun B   +5 more
europepmc   +2 more sources

Dynamic Behavior of Aluminum Alloy Aw 5005 Undergoing Interfacial Friction and Specimen Configuration in Split Hopkinson Pressure Bar System at High Strain Rates and Temperatures. [PDF]

open access: yesMaterials (Basel), 2020
In this paper, experimental and numerical results of an aluminum alloy’s mechanical behavior are discussed. Over a wide range of strain rates (10−4 s−1 ≤ έ ≤ 103 s−1) the influence of the loading impact, velocity and temperature on the dynamic response ...
Bendarma A   +6 more
europepmc   +2 more sources

Energy-absorption analyses of honeycomb-structured Al-alloy and nylon sheets using modified split Hopkinson pressure bar [PDF]

open access: yesScientific Reports, 2023
Thin cylindrical honeycomb-structured aluminum alloy and mono-cast (MC) nylon were studied as superior energy-absorbing materials compared to metallic foams.
Selim Kim   +6 more
doaj   +2 more sources

Split-Hopkinson Pressure Bar Testing of Water with Partial Lateral Confinement. [PDF]

open access: yesExp Mech
Abstract Background For the first time, the high-strain-rate behaviour of water is investigated experimentally and validated to LS-DYNA numerical simulations, using Smooth Particle Hydrodynamics (SPH). Objective This paper presents the application of a modified split-Hopkinson ...
Li KSO   +4 more
europepmc   +4 more sources

Water-immersion softening mechanism of coal rock mass based on split Hopkinson pressure bar experiment

open access: yesInternational Journal of Coal Science & Technology, 2022
The coal mining process is affected by various water sources such as groundwater and coal seam water injection. Understanding the dynamic mechanical parameters of water-immersed coal is helpful for coalmine safe production.
Zhiyuan Liu   +6 more
doaj   +2 more sources

Using the split Hopkinson pressure bar to validate material models. [PDF]

open access: yesPhilos Trans A Math Phys Eng Sci, 2014
This paper gives a discussion of the use of the split-Hopkinson bar with particular reference to the requirements of materials modelling at QinetiQ. This is to deploy validated material models for numerical simulations that are physically based and have as little characterization overhead as possible.
Church P   +4 more
europepmc   +4 more sources

High strain rate compressive strength behavior of cemented paste backfill using split Hopkinson pressure bar

open access: yesInternational Journal of Mining Science and Technology, 2021
The stability of cemented paste backfill (CPB) is threatened by dynamic disturbance, but the conventional low strain rate laboratory pressure test has difficulty achieving this research purpose.
Xin Chen   +5 more
doaj   +2 more sources

Shock Wave Pressure Measurement and Calibration Method Based on Bar Pressure Sensor [PDF]

open access: yesSensors
In order to correctly measure the shock wave pressure generated by a near-field explosion, and while considering the limitations of the measurement and calibration method of the current bar pressure sensor, an improved shock wave pressure measurement ...
Yong-Xiang Shi   +5 more
doaj   +2 more sources

An overview of methods used in dynamic testing of materials [PDF]

open access: yesBiuletyn Wojskowej Akademii Technicznej, 2023
The paper presents an elemental description and methodology of tests that take intoaccount the effect of high strain rate on materials strength parameters. The article describes suchtesting methodology as: Taylor test, split Hopkinson pressure bar method,
Adam Jeschke, Robert Panowicz
doaj   +1 more source

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

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