Results 101 to 110 of about 4,423 (210)

Exploration of Saint-Venant’s Principle in inertial high strain rate testing of materials

open access: yes, 2015
Current high strain rate testing procedures of materials are limited by poor instrumentation which leads to the requirement for stringent assumptions to enable data processing and constitutive model identification.
Pierron, F., Zhu, H.
core   +1 more source

Application of photon Doppler velocimetry to direct impact Hopkinson pressure bars. [PDF]

open access: yes, 2016
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 ...
Jardine, Andrew P, Lea, Lewis J
core   +2 more sources

Determination of dynamic fracture-initiation toughness using three-point bending tests in a modified Hopkinson pressure bar [PDF]

open access: yes, 2003
8 pages, 12 figures.We present a procedure for measuring the dynamic fracture-initiation toughness of materials. The method is based on three-point bending tests at high loading rates, performed in an experimental device which is a modification of the ...
Fernández Sáez, José   +2 more
core   +2 more sources

Strain-rate Dependence for Ni/Al Hybrid Foams [PDF]

open access: yes, 2015
Shock absorption often needs stiff but lightweight materials that exhibit a large kinetic energy absorption capability. Open-cell metal foams are artificial structures, which due to their plateau stress, including a strong hysteresis, can in principle ...
JIROUSEK Ondrej   +4 more
core   +2 more sources

Dynamic Mechanical Behavior and Numerical Simulation of Frozen Soil under Impact Loading

open access: yesShock and Vibration, 2016
Split Hopkinson pressure bars (SHBP) were used to perform impact experiments on frozen soil under various impact velocities and temperatures to analyze the effect of these parameters on the mechanical behavior of the soil.
Dan Zhang, Zhiwu Zhu, Zhijie Liu
doaj   +1 more source

Study of adiabatic localized shear in metals by split Hopkinson pressure bar method

open access: yesEPJ Web of Conferences, 2011
This paper is devoted to the technique for study of localized shear using hat-shaped samples by the split Hopkinson pressure bar (SHPB) method. Also it is devoted to results obtained in tests with samples of copper M1 and steel 09G2S.
Kal’manov A.   +5 more
doaj   +1 more source

Dynamic testing by split Hopkinson pressure bars (SHPB)

open access: yes, 2007
98 p. In recent days there are lots of engineering applications, the design of armor system, highspeed transportation vehicles, aerospace industry, nuclear power plants and high-speed machinery, where materials are subjected to high strain loading.
openaire   +1 more source

Using Laplace transform to solve the viscoelastic wave problems in the dynamic material property tests

open access: yesEPJ Web of Conferences, 2015
In relation to the dynamic tests of materials, the approach to solve the viscoelastic wave propagations in a one dimensional viscoelastic rod was summarized.
Zheng Yuxuan, Zhou Fenghua
doaj   +1 more source

Influence of Early Age on the Wave Velocity and Dynamic Compressive Strength of Concrete Based on Split Hopkinson Pressure Bar Tests

open access: yesShock and Vibration, 2018
The effect of early age on the mechanical properties of concrete was investigated in this study. A uniaxial compression test was performed on split Hopkinson pressure bar (SHPB) equipment with a large diameter of 75 mm. The experimental results indicated
Shiming Wang, Longjun Dong, Jian Zhou
doaj   +1 more source

Modified Kolsky Formulas for an Increased Measurement Duration of SHPB Systems

open access: yes, 2013
International audienceThe so-called incident, reflected and transmitted strain histories are typically recorded during standard Split Hopkinson Pressure Bar (SHPB) experiments. Subsequently, the stress-strain curve for the specimen material is determined
Gary, Gérard, Mohr, Dirk
core   +1 more source

Home - About - Disclaimer - Privacy