Results 31 to 40 of about 2,693,773 (355)

On the Uniaxial Compression Testing of Metallic Alloys at High Strain Rates: An Assessment of DEFORM-3D Simulation

open access: yesApplied Sciences, 2023
In this study, the challenges associated with conducting high-strain rate uniaxial compression testing experiments are highlighted. To address these challenges, DEFORM-3D simulation was explored as an alternative approach to experimental testing ...
Michael Bodunrin   +2 more
doaj   +1 more source

Scaling of the Strain Hardening Modulus of Glassy Polymers with the Flow Stress

open access: yes, 2009
In a recent letter, Govaert et al. examined the relationship between strain hardening modulus $G_r$ and flow stress $\sigma_{flow}$ for five different glassy polymers.
Argon   +25 more
core   +3 more sources

Polymer stress growth in viscoelastic fluids in oscillating extensional flows with applications to micro-organism locomotion [PDF]

open access: yes, 2019
Simulations of undulatory swimming in viscoelastic fluids with large amplitude gaits show concentration of polymer elastic stress at the tips of the swimmers.We use a series of related theoretical investigations to probe the origin of these concentrated ...
Guy, Robert D., Thomases, Becca
core   +3 more sources

Constitutive Equation for 3104 Alloy at High Temperatures in Consideration of Strain

open access: yesHigh Temperature Materials and Processes, 2016
The flow behavior of 3104 aluminum alloy was investigated at temperatures ranging from 250°C to 500°C, and strain rates from 0.01 to 10 s−1 by isothermal compression tests.
Zhen Fuqiang, Sun Jianlin, Li Jian
doaj   +1 more source

The flow behavior modeling of as-extruded 3Cr20Ni10W2 austenitic heat-resistant alloy at elevated temperatures considering the effect of strain [PDF]

open access: yesMaterials Research, 2014
In order to investigate the compressive deformation behavior of 3Cr20Ni10W2 alloy, a series of isothermal upsetting experiments were carried out in the temperature range of 1203-1403 K and strain rate range of 0.01-10 s-1 on a Gleeble-1500 thermo ...
Guo-Zheng Quan   +4 more
doaj   +1 more source

High Strain Rate Properties of Various Forms of Ti6Al4V(ELI) Produced by Direct Metal Laser Sintering

open access: yesApplied Sciences, 2021
For analysis of engineering structural materials to withstand harsh environmental conditions, accurate knowledge of properties such as flow stress and failure over conditions of high strain rate and temperature plays an essential role. Such properties of
Amos Muiruri   +2 more
doaj   +1 more source

Rheological Chaos of Frictional Grains

open access: yes, 2016
A two-dimensional dense fluid of frictional grains is shown to exhibit time-chaotic, spatially heterogeneous flow in a range of stress values, $\sigma$, chosen in the unstable region of s-shaped flow curves.
Grob, Matthias   +2 more
core   +1 more source

A Strain-Compensated Constitutive Model for Describing the Hot Compressive Deformation Behaviors of an Aged Inconel 718 Superalloy

open access: yesHigh Temperature Materials and Processes, 2019
The hot deformation behaviors of an aged Inconel 718 superalloy are investigated by isothermal compression experiments at four strain rates and five deformation temperatures on a Gleeble-3500 thermo-mechanical simulator.
Zhou Ying, Chen Xiao-Min, Qin Shengfeng
doaj   +1 more source

Wall slip and flow of concentrated hard-sphere colloidal suspensions

open access: yes, 2012
We present a comprehensive study of the slip and flow of concentrated colloidal suspensions using cone-plate rheometry and simultaneous confocal imaging.
Barrett K. E. J.   +8 more
core   +1 more source

Influence of Temperature on Mechanical Behavior During Static Restore Processes of Al-Zn-Mg-Cu High Strength Aluminum Alloy

open access: yesJournal of Aeronautical Materials, 2017
Flow stress behaviors of as-cast Al-Zn-Mg-Cu high strength aluminum alloy during static restore processes were investigated by: Isothermal double-pass compression tests at temperatures of 300-400℃, strain rates of 0.01-1 s-1, strains of 33% +20% with the
ZHANG Kun   +3 more
doaj   +1 more source

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