Results 31 to 40 of about 1,454,923 (313)

A constitutive model for analyzing martensite formation in austenitic steels deforming at high strain rates [PDF]

open access: yes, 2012
This study presents a constitutive model for steels exhibiting SIMT, based on previous seminal works, and the corresponding methodology to estimate their parameters.
FERNANDEZ-SAEZ, José   +5 more
core   +1 more source

Image-based high strain rate testing of orthopaedic bone cement

open access: yesEPJ Web of Conferences, 2018
Bone cement is widely used for the fixation of orthopaedic implants. It is a multi-component material that consists of a PMMA base with a small proportion of (usually ceramic) radiopacifier to enable the cement to be observed by X-ray.
Fletcher Lloyd   +4 more
doaj   +1 more source

Nanoscale Twinned Ti-44Al-4Nb-1.5Mo-0.007Y Alloy Promoted by High Temperature Compression with High Strain Rate

open access: yesMetals, 2018
In order to investigate the dynamic mechanical behavior of TiAl alloys and promote their application in the aerospace industry, uniaxial compression of Ti-44Al-4Nb-1.5Mo-0.007Y (at %) alloy was conducted at a temperature range from 25 to 400 °C with ...
Wenqi Guo   +3 more
doaj   +1 more source

Dislocation Damping in Aluminum at High Strain Rates [PDF]

open access: yesJournal of Applied Physics, 1967
Impact shear tests of the Kolsky thin-wafer type were used to determine the effect of temperature and strain rate on the critical resolved shear stress for slip in aluminum single crystals at strain rates of 104 sec−1 and in the temperature range 20° to 500°K.
Ferguson, W.G., Kumar, A., Dorn, J.E.
openaire   +2 more sources

Large scale high strain-rate tests of concrete

open access: yesEPJ Web of Conferences, 2012
This work presents the stages of development of some innovative equipment, based on Hopkinson bar techniques, for performing large scale dynamic tests of concrete specimens.
Kiefer R.   +4 more
doaj   +1 more source

Towards high velocity deformation characterisation of metals and composites using Digital Image Correlation [PDF]

open access: yes, 2010
Characterisation of materials subject to high velocity deformation is necessary as many materials behave differently under such conditions. It is particularly important for accurate numerical simulation of high strain rate events.
R. Eriksen   +14 more
core   +1 more source

Dynamic High Strain Rate Plastic Constitutive Model of Q355GNHD High Weathering Steel

open access: yes机车电传动, 2021
Q355GNHD high weathering steel is a commonly used material for advanced rail vehicle body, the plastic constitutive model of which under dynamic conditions is of great significance for the numerical simulation of vehicle body stress.
Zhilong ZHANG, Heting XIAO, Wei ZHOU
doaj  

Modeling and Simulation Techniques Used in High Strain Rate Projectile Impact

open access: yesMathematics, 2021
A series of computational models and simulations were conducted for determining the dynamic responses of a solid metal projectile impacting a target under a prescribed high strain rate loading scenario in three-dimensional space.
Derek G. Spear   +2 more
doaj   +1 more source

High strain rate compression of epoxy micropillars [PDF]

open access: yesExtreme Mechanics Letters, 2020
The study of the high strain rate mechanical behaviour of materials using micropillar compression tests has been hindered so far due to the lack of suitable instrumentation. In the present study, a novel high strain rate micropillar compression set-up is introduced.
Rueda-Ruiz, Mario   +4 more
openaire   +2 more sources

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

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