Results 91 to 100 of about 5,478,842 (309)

Granular Flow Impact on Shed Tunnels and the Buffering Effect of Cushion Layers

Applied Sciences
Granular flow is one of the most destructive geological hazards in mountainous areas, posing a severe threat to the economy and personnel safety in the region. Shed tunnels are widely used for the prevention and mitigation of granular flow hazards. Thus,
Li Wei, Jianghong Wang, Zili Dai
doaj   +1 more source

Creating Ti–Fe α/β Alloys by Diffusion‐Driven Solid‐State Processing

Advanced Engineering Materials, EarlyView.
This study proposes making alloys containing fast diffusing elements that are difficult to produce by ingot metallurgy, by diffusion‐driven solid‐state HIP processing of elemental powders and low‐temperature homogenisation. Here, novel Fe‐Ti α–β alloys are formed having fine α–β lamellae, a small β prior grain size without significant intermetallics ...
Jiaqi Xu, Xun Zhang, Jack M. Donoghue, Albert D. Smith, Rahul Unnikrishnan, Rhys Thomas, Vahid Nekouie, Jie Luo, Dongchen Hu, Michael Preuss, Philip J. Withers   +10 more
wiley   +1 more source

Numerical Simulations for Large Deformation of Geomaterials Using Molecular Dynamics

Advances in Materials Science and Engineering, 2018
From the microperspective, this paper presents a model based on a new type of noncontinuous theoretical mechanical method, molecular dynamics (MD), to simulate the typical soil granular flow.
Ziyang Zhao, Jun Zhang
doaj   +1 more source

Continuum simulation of granular flow in a rotating cylinder [PDF]

EPJ Web of Conferences
We perform continuum simulations of the flow behavior of granular materials in a rotating drum. We extend the interFoam solver used for two-phase fluid simulations in open-source CFD software OpenFOAM for simulating dense granular flow in presence of air.
Chanda Suchintika, Kumawat Soniya, Tiwari Abhishek, Ranjan Rajesh, Tripathi Anurag   +4 more
doaj   +1 more source

Simulation of three-dimensional rapid free-surface granular flow past different types of obstructions using the SPH method

Journal of Glaciology, 2016
In nature, when hazardous geophysical granular flows (e.g. a snow avalanche) impact on an obstacle as they stream down a slope, rapid changes in flow depth, direction and velocity will occur.
A. Abdelrazek, I. Kimura, Y. Shimizu
semanticscholar   +1 more source

Solid‐State Diffusion and Intermetallic Phase Formation in Roll‐Bonded Mg–Zn Composites With Kirigami‐Patterned Inlay

Advanced Engineering Materials, EarlyView.
Mg–Zn composites with a thickness of 0.21 mm were fabricated using roll bonding of a kirigami‐patterned Mg alloy inlay within a Zn matrix. Thermal activation following this process led to the formation of tailored intermetallic structures, which provided the composite with enhanced flexural strength.
Yaroslav Frolov, Oleksandr Bobukh, Christian Klose, Florian Nürnberger, Hans Jürgen Maier   +4 more
wiley   +1 more source

Rafting of Ni‐Based Superalloys Under Multiaxial Load as Understood by Phase‐Field Simulations and Critical Experiments

Advanced Engineering Materials, EarlyView.
Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan, David Bürger, Gunther Eggeler, Oleg Shchyglo, Ingo Steinbach, Muhammad Adil Ali   +5 more
wiley   +1 more source

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

Advanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Study on the Mechanisms of Solids Segregation in Granular Debris Flows

工程科学与技术, 2013
:Debris flow is generally composed of a wide range of solid particles and viscous pore fluid. Interactions between solid particles and the resulted segregation in debris flows are affected by multiple parameters,and usually govern the rheological ...
周公旦, 孙其诚, 崔鹏
doaj  

Rheology of dense suspensions of non-Brownian soft particles across flow regimes [PDF]

EPJ Web of Conferences
This study investigates the rheological behavior of soft spherical particles across the jamming transition and within both viscous and inertial flow regimes.
Tapia Franco, Hong Chong-Wei, Aussillous Pascale, Guazzelli Élisabeth   +3 more
doaj   +1 more source