Results 51 to 60 of about 216 (120)
Colloids and Interfaces, 2018 This study investigates dilute aqueous suspensions of bentonite particles using magnetic resonance imaging (MRI) velocimetry. Four different chemical conditions are tested to investigate the influence of pH and type of monovalent electrolyte on the local
Olga Chernoburova +4 more
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Finite width of quasistatic shear bands [PDF]
Physical Review E, 2008 I study the average deformation rate of an amorphous material submitted to an external uniform shear strain rate, in the geometry known as the split-bottom configuration. The material is described using a stochastic model of plasticity at a mesoscopic scale.
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REM: International Engineering JournalInvestigation of microstructure and texture has been done for cold rolled Fe-30.5Mn-8.0Al-1.2C (8Al) and Fe-30.5Mn-2.1Al-1.2C (2Al) (wt.%) steels. They were rolled to a strain of ~0.70.
Fabrício Mendes Souza
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Exponential decay of shearing stress during jerky flows in a Zr-based bulk metallic glass
AIP Advances, 2013 Presently, an exponential decay of shearing stresses with the time during jerky flows in a Zr-based bulk metallic glass is revealed. The flow stresses with the time satisfy the following equation: σ = A · e−B · x, where A = −158.24*exp ( − N/47.60 ...
J. W. Qiao +5 more
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Hardening of shear band in metallic glass
Scientific Reports, 2017 AbstractStrain hardening, originating from defects such as the dislocation, avails conventional metals of high engineering reliability in applications. However, the hardenability of metallic glass is a long-standing concern due to the lack of similar defects.
J. G. Wang +8 more
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Shear-band thickness and shear-band cavities in a Zr-based metallic glass
Acta Materialia, 2017 Abstract Strain localization into shear bands in metallic glasses is typically described as a mechanism that occurs at the nano-scale, leaving behind a shear defect with a thickness of 10–20 nm. Here we sample the structure of a single system-spanning shear band that has carried all plastic flow with high-angle annular dark field scanning ...
C. Liu +3 more
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Fracture-resistant thin-film metallic glass: Ultra-high plasticity at room temperature
APL Materials, 2016 We report the first example of room-temperature rubber-like deformation in thin-film metallic glasses (TFMGs), 260-nm-thick Zr60Cu24Al11Ni5 layers, under ultra-high shear strain.
Chia-Chi Yu +4 more
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Experimental investigation on shear fracture at high strain rates
EPJ Web of Conferences, 2015 Adiabatic shear banding is a well-understood failure mechanism of metals at high strain rates. In addition, recent research on the ductile fracture of metals has demonstrated that shear localization at the microscale is also an important precursor of ...
Roth Christian C., Mohr Dirk
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Spatial-Temporal Phenomena in the Flows of Multi-Component
Applied Rheology, 2015 Measuring the rheological properties of multi-component (and multi-phase) systems meets with many special problems which are absent in flows of homogeneous materials. Such complex fluids have inherent structure and all the peculiarities of their behavior
Malkin Alexander Ya. +1 more
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Effect of Outflow Tract Banding on Embryonic Cardiac Hemodynamics
Journal of Cardiovascular Development and Disease, 2015 We analyzed heart wall motion and blood flow dynamics in chicken embryos using in vivo optical coherence tomography (OCT) imaging and computational fluid dynamics (CFD) embryo-specific modeling. We focused on the heart outflow tract (OFT) region of day 3
Venkat Keshav Chivukula +3 more
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