Results 71 to 80 of about 767,158 (326)

Characteristics of direct shear test for plain concrete joint with rubber cushion

矿业科学学报, 2018
The contact friction between the segments and the joints of shield segments plays a crucial role in the stability of the shield segment.In order to analyze the contact friction among tunnel segments,direct shear tests were carried out on concrete ...
Zhang Zhenyu, Li Haojie, Jia Changheng, Feng Jili   +3 more
doaj   +1 more source

Shear Stress and Atherosclerosis

Molecules and Cells, 2014
Hemodynamic shear stress, the frictional force acting on vascular endothelial cells, is crucial for endothelial homeostasis under normal physiological conditions. When discussing blood flow effects on various forms of endothelial (dys)function, one considers two flow patterns: steady laminar flow and disturbed flow because endothelial cells respond ...
Heo, Kyung-Sun, Fujiwara, Keigi, Abe, Jun-ichi   +2 more
openaire   +3 more sources

On the Flow Curve of Colloids Presenting Shear-Induced Phase Transitions [PDF]

, 2007
This work deals with the evaluation of the flow curve of colloidal systems that develop fluid phases with different mechanical properties, namely shear-banding fluids.
Berli, Claudio L. A., Quemada, Daniel
core   +2 more sources

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

Investigating the coupling effect of loading rate and initial static shear stress on landslide and soil liquefaction within an energy-based framework

Geoenvironmental Disasters
Background Initial shear stress and loading rate are two critical factors influencing soil mechanical behavior. Their coupled effects, however, remain insufficiently understood, particularly in terms of strength evolution and deformation mechanisms ...
Wang Juntian, Bao Han, Lan Hengxing, Li Yao, Wang Zhe, Li Xiang   +5 more
doaj   +1 more source

Viscoelastic Phase Separation in Shear Flow

, 2004
We numerically investigate viscoelastic phase separation in polymer solutions under shear using a time-dependent Ginzburg-Landau model. The gross variables in our model are the polymer volume fraction and a conformation tensor.
A. Onuki, A.N. Beris, Akira Furukawa, Akira Onuki, G. Müller, H. Tanaka, J.L. White, L.A. Utracki, M. Adam, M. Adam, P.G. de Gennes, R.G. Larson, S. Saito, Tatsuhiro Imaeda, X.-F. Yuan, X.L. Wu   +15 more
core   +1 more source

Mechanisms for slow strengthening in granular materials [PDF]

, 1999
Several mechanisms cause a granular material to strengthen over time at low applied stress. The strength is determined from the maximum frictional force F_max experienced by a shearing plate in contact with wet or dry granular material after the layer ...
A. Ruina, A.J. Liu, C. Marone, C. Marone, C. Scholz, C.H. Liu, D. Howell, D.M. Hanes, E. Aharonov, F. Radjai, G. Hähner, H.M. Jaeger, J. Krim, J. P. Gollub, J.-C. Géminard, J.C. Géminard, J.H. Dieterich, J.K. Morgan, J.K. Morgan, L. Bocquet, L. Vanel, M. Nakatani, M.E. Cates, O. Reynolds, P. Berthoud, P.A. Thompson, S. Nasuno, S. Nasuno, S. Nasuno, S.F. Edwards, S.L. Karner, T. Baumberger, W. Losert, Y. Zhang   +33 more
core   +2 more sources

Engineering Deformation and Failure in Diamond Triply Periodic Minimal Surface Lattices via 3D Wall‐Thickness Grading

Advanced Engineering Materials, EarlyView.
The work demonstrates that strategic wall‐thickness grading in diamond triply periodic minimal surface lattices enables precise tuning of deformation and failure behavior under compression. Different gradation patterns guide how and where the structure collapses, improving energy absorption or promoting controlled brittle failure.
Giovanni Rizza, Danilo Bruson, Manuela Galati, Luca Iuliano   +3 more
wiley   +1 more source

Physiological shear stress suppresses apoptosis in human pulmonary microvascular endothelial cells

Physiological Reports
Physiological shear stress contributes to maintaining endothelial cell homeostasis, including suppression of apoptosis. In the pulmonary circulation, diseases such as pulmonary embolism and pulmonary hypertension result in alterations in shear stress ...
Simin Yan, Nicolas M. Philip, Samuel T. Murray, Xin Yun, Michael P. Croglio, Karthik Suresh, Mahendra Damarla, Larissa A. Shimoda, Todd M. Kolb   +8 more
doaj   +1 more source

Shear behaviors of intermittent joints subjected to shearing cycles under constant normal stiffness conditions: Effects of loading parameters

Journal of Rock Mechanics and Geotechnical Engineering
A conceptual model of intermittent joints is introduced to the cyclic shear test in the laboratory to explore the effects of loading parameters on its shear behavior under cyclic shear loading. The results show that the loading parameters (initial normal
Bin Wang, Yujing Jiang, Qiangyong Zhang, Hongbin Chen   +3 more
doaj   +1 more source