Results 61 to 70 of about 158,032 (303)

Suspensions of finite-size neutrally-buoyant spheres in turbulent duct flow

, 2017
We study the turbulent square duct flow of dense suspensions of neutrally-buoyant spherical particles. Direct numerical simulations (DNS) are performed in the range of volume fractions $\phi=0-0.2$, using the immersed boundary method (IBM) to account for
Brandt, Luca, Fornari, Walter, Hussong, Jeanette, Kazerooni, Hamid Tabaei   +3 more
core   +1 more source

Characterization of Nitinol Produced by Laser Powder Bed Fusion for Mechanical Metamaterial Applications

Advanced Engineering Materials, EarlyView.
Stabilization of L‐PBF Ni50.7Ti49.3 under low‐cycle loading was investigated. Recoverable strain after cycling was dependent on the amount of applied load. Recovery ratio was 53.4% and 35.1% at intermediate and high load, respectively. The maximum total strain reached 10.3% at a high load of 1200 MPa.
Ondřej Červinek, Jakub Hurník, Miroslav Šmíd, Ondřej Zobač, Melanie Todt, Daniel Koutný   +5 more
wiley   +1 more source

Determination of the dynamic hardness of greases as a characteristic of deformation properties in a tribocontact

Проблеми трибології, 2022
The efficiency of plastic oil is determined by the duration of its retention on the surface. Evaluation of the effectiveness of plastic lubricants depends on their mechanical properties.
O. Dykha, A. Staryi, V. Dytyniuk, M. Dykha   +3 more
doaj   +1 more source

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

Advanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm, Lukas Knöchel, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +5 more
wiley   +1 more source

Stress drop sequences in the simplest pressure-sensitive ideal elasto-plastic media: implications for earthquake cycles [PDF]

Solid Earth
This study explores stress drops and earthquake sequences in the simplest pressure-sensitive elasto-plastic media using two-dimensional simulations, emphasizing the critical role of temporal and spatial resolution in accurately capturing stress evolution
Y. Alkhimenkov, L. Khakimova, L. Khakimova, Y. Y. Podladchikov, Y. Y. Podladchikov   +4 more
doaj   +1 more source

Sliding without slipping under Coulomb friction: opening waves and inversion of frictional force

, 2016
An elastic layer slides on a rigid flat governed by Coulomb's friction law. We demonstrate that if the coefficient of friction is high enough, the sliding localizes within stick-slip pulses, which transform into opening waves propagating at intersonic ...
Yastrebov, Vladislav A.
core   +3 more sources

The physics of earthquakes [PDF]

, 2004
Earthquakes occur as a result of global plate motion. However, this simple picture is far from complete. Some plate boundaries glide past each other smoothly, while others are punctuated by catastrophic failures.
Brodsky, Emily E., Kanamori, Hiroo
core   +1 more source

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

Advanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff, Finn‐Lennard Janthur, Sascha Zimmermann, Sarah Seffer, Jörg Hermsdorf, René Gustus, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Christian Klose   +9 more
wiley   +1 more source

Szlakami Teorii Sprężystości

Engineering Transactions, 1955
A general historical survey of mechanics of deformable bodies, in which the history of that science is divided into three periods (from Galileo to Navier, from N a vier to the creation of the theory of plasticity and from that date up to the present), is
Jerzy Nowiński
doaj  

Numerical analysis of subsoil-reinforced concrete slab interaction [PDF]

, 2018
This article presents the numerical modeling of interaction between a reinforced concrete slab and subsoil using ABAQUS. Subsoil was simulated as both homogeneous half-space and inhomogeneous half-space.
Le, Tuan Duc, Nguyen, Qui Thanh, Čajka, Radim   +2 more
core   +1 more source