Results 31 to 40 of about 576,522 (312)

Portland/Sulfoaluminate Cement Blends for the Control of Early Age Hydration and Yield Stress

Buildings, 2023
Early age hydration and the rheological behavior of cement pastes are related to their reactivity. The reactivity of Ordinary Portland Cement (OPC) and calcium sulfoaluminate cement (CSA) blends, with a CSA percentage of less than 10%, are investigated ...
Noura Khalil, Georges Aouad, Joelle Kleib, Sebastien Rémond   +3 more
doaj   +1 more source

THE EFFECT OF STIFFNESS OF THE LOADING SYSTEM ON DETERMINATION OF TENSILE CHARACTERISTICS FROM THE RESULTS OF SMALL PUNCH TESTS

Acta Metallurgica Slovaca, 2014
The assessment of the residual lifetime of critical components of industrial plants requires the knowledge of mechanical properties prior to operation, respecting all technological operations realized throughout the manufacture of the component, and the ...
Karel Matocha, Ladislav Kander, Miroslav Filip, Ondřej Dorazil, Kaishu Guan, Yifen Xu   +5 more
doaj   +1 more source

The Direct Impact Method for Studying Dynamic Behavior of ‎Viscoplastic Materials [PDF]

Journal of Applied and Computational Mechanics, 2022
This work is devoted to the direct impact method for determining the deformation diagrams of viscoplastic materials at high strain rates. As the conventional Split Hopkinson Pressure Bar method, the direct impact method is based on the measuring bar ...
Artem Basalin, Aleksandr Konstantinov, Leonid Igumnov, Alexandr Belov, Anatoliy Bragov, Victor Eremeev   +5 more
doaj   +1 more source

Determination of the optimum ball radius for researching materials using ball indenting

Космические аппараты и технологии, 2021
The article discusses the study of the effect of a change in the radius of the ball in the injecting of the sample on the curve in the coordinates «load – indentation depth», the deviation of the indentation depth during elastoplastic indentation from ...
N. N. Avtonomov, A. V. Tololo
doaj   +1 more source

Effect of yield stress development on the foam-stability of aerated geopolymer concrete

, 2020
This study investigates the instability of fresh geopolymer foam concrete (GFC) synthesised through the pre-foaming technique, particularly at ultra-low densities (430–460 kg/m3).
Pasupathy, K., Dhasindrakrishna, K., Ramakrishnan, Sayanthan, Sanjayan, Jay   +3 more
core   +1 more source

Variability behavior of yield stress for unclassified tailings pasted under measurement time‒velocity double factors

工程科学学报, 2020
The rake torque of deep cone thickener, pipeline resistance, and paste accumulation slope were important technological parameters for the efficient paste backfill process, which are to be solved or optimized for the practical application in mines.
Cui-ping LI, Bing-heng YAN, Shao-yong WANG, He-zi HOU, Ge-zhong CHEN   +4 more
doaj   +1 more source

No yield stress required: Stress-activated flow in simple yield-stress fluids

Journal of Rheology
An elastoviscoplastic constitutive equation is proposed to describe both the elastic and rate-dependent plastic deformation behavior of Carbopol® dispersions, commonly used to study yield-stress fluids. The model, a variant of the nonlinear Maxwell model with stress-dependent relaxation time, eliminates the need for a separate Herschel–Bulkley yield ...
G. Pagani, M. Hofmann, L. E. Govaert, T. A. Tervoort, J. Vermant   +4 more
openaire   +2 more sources

Avalanche Behavior in Yield Stress Fluids [PDF]

Physical Review Letters, 2002
We show that, above a critical stress, typical yield stress fluids (gels and clay suspensions) and soft glassy materials (colloidal glasses) start flowing abruptly and subsequently accelerate, leading to avalanches that are remarkably similar to those of granular materials.
Coussot, P., Nguyen, Q., Huynh, H., Bonn, D.   +3 more
openaire   +3 more sources

Yield-stress shear thinning and shear thickening fluid flows in deformable channels

, 2023
Yield stress shear thinning/thickening fluids flow through flexible channels, tubes are widespread in the natural world with many technological applications [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11].
Pranjal, Prasad, Ashish, Garg
core   +1 more source

Methodology to assess the changing risk of yield failure due to heat and drought stress under climate change [PDF]

, 2021
International audienceWhile the understanding of average impacts of climate change on crop yields is improving, few assessments have quantified expected impacts on yield distributions and the risk of yield failures.
Ruane, Alex, C, Jabloun, M., Nendel, C., Ewert, F., Lorite, Ignacio J, Olesen, Jørgen E, Lorite, Ignacio, J, Nendel, Claas, Loic Manceau, Pierre Stratonovitch, Heidi Webber, Ruane, Alex C, Semenov, Mikhail, A, Fronzek, S., Lizaso, Jon I., Lorite, Ignacio J., Lizaso, Jon, Ignacio J Lorite, Olesen, J. E., Ferrise, Roberto, Martre, Pierre, Bregaglio, Simone, Sravya Mamidanna, Lizaso, Jon,, Simone Bregaglio, Collins, B., Gabaldón-Leal, Clara, Webber, Heidi, Semenov, Mikhail A, Manceau, Loic, Kersebaum, Kurt Christian, Collins, Brian, Stella, T., Faye, B., Semenov, Mikhail A., Kurt-Christian Kersebaum, Mamidanna, S., Martre, P., Fodor, Nándor, Mamidanna, Sravya, Pierre Martre, Nándor Fodor, Bregaglio, S., Lizaso, Jon, I, Ruane, A. C., Mohamed Jabloun, Kersebaum, K-C., Roberto Ferrise, Lorite, I. J., Jabloun, Mohamed, Kersebaum, Kurt-Christian, Brian Collins, Webber, H., Mikhail A Semenov, Nendel, Claas (Dr.), Stratonovitch, Pierre, Stefan Fronzek, Bindi, M., Stratonovitch, P., Fronzek, Stefan, Semenov, M. A., Tommaso Stella, Rodriguez, A., Margarita Ruiz-Ramos, Alfredo Rodríguez, Lizaso, Jon I, Stella, Tommaso, Lorite, Ignacio,, Ruiz-Ramos, M., Marco Bindi, Manceau, L., Bindi, Marco, Ferrise, R., Fodor, N., Olesen, Jorgen E., Semenov, Mikhail,, Olesen, Jørgen, E, Ewert, Frank, Frank Ewert, Rodríguez, Alfredo, Jon I Lizaso, Ruiz-Ramos, Margarita, Lizaso, J. I., Clara Gabaldón-Leal, Martre, Pierre,, Faye, Babacar, Babacar Faye, Claas Nendel, Ruane, Alex C., Gabaldon-Leal, C., Olesen, Jørgen,, Alex C Ruane, Ruane, Alex,, Jørgen E Olesen   +93 more
core   +1 more source