Results 61 to 70 of about 47,158 (302)

Linear instability of planar shear banded flow of both diffusive and non-diffusive Johnson-Segalman fluids

, 2006
We consider the linear stability of shear banded planar Couette flow of the Johnson-Segalman fluid, with and without the addition of stress diffusion to regularise the equations.
Wilson, HJ, Wilson, Helen J., Fielding, SM, Wilson, H.J., Fielding, Suzanne M., Fielding, S.M.   +5 more
core   +1 more source

Modelling the Shear Banding in Gradient Nano-Grained Metals

Nanomaterials, 2021
Extensive experiments have shown that gradient nano-grained metals have outstanding synergy of strength and ductility. However, the deformation mechanisms of gradient metals are still not fully understood due to their complicated gradient microstructure.
Tianyu Chen, Jianjun Li
doaj   +1 more source

Dynamic interaction of multiple shear bands [PDF]

Scientific Reports, 2018
AbstractA mechanical model for waves impinging different configurations of multiple shear bands already formed in a ductile material, allows to analyze the ways in which dynamic interactions promote failure. It is shown that the presence of more than one shear band may lead to resonance and correspondent growth of a shear band or, conversely, to its ...
Giarola, Diana, Capuani, Domenico, Bigoni, Davide   +2 more
openaire   +3 more sources

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

Advanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi, Pasquale Guglielmi, Gianfranco Palumbo, Giuseppe Carbone   +3 more
wiley   +1 more source

Study on the Multi-Scale Evolution Mechanism of Shear Bands and Cobweb Effect in Solidified Silt Considering Strain Rate

Applied Sciences
The strain rate is a critical element influencing soil strength and the development characteristics of shear bands, which are essential for soil landslides.
Zhongnian Yang, Xiaoyang Wu, Yuxue Cui, Yingying Zhang, Hongfei Duan, Xianzhang Ling   +5 more
doaj   +1 more source

Unveiling the mechanical response and accommodation mechanism of pre-rolled AZ31 magnesium alloy under high-speed impact loading

Journal of Magnesium and Alloys, 2022
Split Hopkinson pressure bar (SHPB) tests were conducted on pre-rolled AZ31 magnesium alloy at 150–350 ℃ with strain rates of 2150s-1, 3430s-1 and 4160s-1.
Xiao Liu, Hui Yang, Biwu Zhu, Yuanzhi Wu, Wenhui Liu, Changping Tang   +5 more
doaj   +1 more source

Carboxylic‐Acid Functionalized Multiwalled Carbon Nanotube‐Alkane‐Based Resistive Temperature Sensor for Cold Chain Applications

Advanced Engineering Materials, EarlyView.
This study presents a reversible temperature sensor with high switching ratio, ∼103. The device is fabricated using PET‐ITO and carbon nanotube dispersions in alkane. Considering its application in cold chain logistics, a proof‐of‐concept with LED is showcased. Thus, a temperature drop below the threshold temperature (crystallization temperature of the
Sunil Kumar Behera, Philippe Marrec, A. Jorge Parola, Madalena Dionísio, Hugo Águas, Andreia F. M. Santos, Hamed Pourkheirollah, Donald Lupo, César A. T. Laia   +8 more
wiley   +1 more source

High pressure suppression of plasticity due to an overabundance of shear embryo formation

npj Computational Materials
High pressure shear band formation is a critical phenomenon in energetic materials due to its influence on both mechanical strength and mechanochemical activation.
Brenden W. Hamilton, Timothy C. Germann
doaj   +1 more source

Variation in principal curvature of air-water interface inside and outside shear band of dense unsaturated sand [PDF]

E3S Web of Conferences
Triaxial compression tests were conducted on dense unsaturated sand specimens under constant suction and constant water content conditions. X-ray micro-computed tomography (CT) scans were performed at different deformation stages to visualize the ...
Kido Ryunosuke, Higo Yosuke
doaj   +1 more source

On the Lightweight Potential of Laser Additive Manufactured NiTi Triply Periodic Minimal Sheet Lattices

Advanced Engineering Materials, EarlyView.
This study explores the lightweight potential of laser additive‐manufactured NiTi triply periodic minimal surface sheet lattices. It systematically investigates the effects of relative density and unit cell size on surface quality, deformation recovery, compression behavior, and energy absorption.
Haoming Mo, Shuo Qu, Shiming Gao, Xu Song   +3 more
wiley   +1 more source