Results 21 to 30 of about 1,454,923 (313)

High strain rate response of UHP(FR)C in compression

open access: yesEPJ Web of Conferences, 2015
The objective of this study was to investigate the compression behaviour of the UHPFRC and its matrix (UHPC) under high strain rate. Two experimental set-ups were used for compression testing: a traditional Split Hopkinson Pressure Bars and a compression
Bragov Anatoly   +5 more
doaj   +1 more source

High strain rate deformation of layered nanocomposites [PDF]

open access: yesNature Communications, 2012
Insight into the mechanical behaviour of nanomaterials under the extreme condition of very high deformation rates and to very large strains is needed to provide improved understanding for the development of new protective materials. Applications include protection against bullets for body armour, micrometeorites for satellites, and high-speed particle ...
Jae-Hwang, Lee   +7 more
openaire   +2 more sources

High strain rate behaviour of fiber reinforced concrete

open access: yesEPJ Web of Conferences, 2018
The results of dynamic compression and tensile-splitting tests of concrete reinforced by randomly distributed short non – metallic fibres are presented.
Popovič Miloslav   +2 more
doaj   +1 more source

Comparison of Measurement of Aluminium Alloy in High Strain Rate

open access: yesJournal of Mechanical Engineering, 2023
This article describes the Split Hopkinson Pressure Bar test of aluminium alloy EN AW 7075-T6. This test is used for material testing at a high strain rate. Two approaches in measurement.
Mánek Martin, Fusek Martin
doaj   +1 more source

Study on the Influence of Sample Size on the Mechanical and Integrity Characteristics of Coal Measure Sandstone under High Strain Rate

open access: yesFractal and Fractional, 2023
In order to explore the size effect of the mechanical and damage characteristics of coal measure sand stones under dynamic load, uniaxial impact compression tests were carried out on coal-bearing sand stones with a diameter of 50 mm and a length–diameter
Enbing Yi, Zhenhua Li
doaj   +1 more source

An experimental investigation of the behaviour of steels over large temperature and strain rate ranges [PDF]

open access: yes, 2013
During forging and machining manufacturing processes, the material is subject to large strains at high strain rates which provoke local heating and microstructural changes.
GERMAIN, Guénaël   +3 more
core   +1 more source

Specimen Inertia in high strain rate tensile testing

open access: yesEPJ Web of Conferences, 2015
It is well established that measurements of the dynamic mechanical response of materials are susceptible to errors due to the inertia of the specimen, which causes stresses in addition to the intrinsic material strength.
Hockly Meyrick, Siviour Clive R.
doaj   +1 more source

Direct experimental evidence of time-temperature superposition at finite strain for an amorphous polymer network [PDF]

open access: yes, 2015
The time-temperature superposition property of an amorphous polymer acrylate network is characterized at infinitesimal strain by standard dynamic mechanical analysis tests.
GILORMINI, Pierre   +4 more
core   +1 more source

Modelling, identification and application of phenomenological constitutive laws over a large strain rate and temperature range [PDF]

open access: yes, 2013
A review of the different phenomenological thermo-viscoplastic constitutive models often applied to forging and machining processes is presented. Several of the most common models have been identified using a large experimental database (Hor et al., 2013)
GERMAIN, Guénaël   +3 more
core   +1 more source

Mechanical behavior of sand under high pressure and high strain rate

open access: yesEPJ Web of Conferences, 2012
Characterizing of the mechanical behavior of sand under impact loading is necessary to estimate the power of explosive mines. Using Hopkinson pressure bars for its characterization only low and limited pressures can be applied.
Meyer L.W., Abdel-Malek S., Herzig N.
doaj   +1 more source

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