Results 81 to 90 of about 561,308 (303)

Shear Behavior of High-Strength and Lightweight Cementitious Composites Containing Hollow Glass Microspheres and Carbon Nanotubes

Buildings
In this study, an experimental program was conducted to investigate the shear behavior of beams made of high-strength and lightweight cementitious composites (HS-LWCCs) containing hollow glass microspheres and carbon nanotubes.
Dongmin Lee, Seong-Cheol Lee, Oh-Sung Kwon, Sung-Won Yoo   +3 more
doaj   +1 more source

Non-universal shear viscosity from Einstein gravity

, 2011
A very famous result of gauge/gravity duality is the universality of the ratio of shear viscosity to entropy density in every field theory holographically dual to classical, two-derivative (Einstein) gravity.
Aharony, Ammon, Ammon, Ammon, Basu, Basu, Benincasa, Buchel, Buchel, Buchel, Buchel, Gubser, Gubser, Hansjörg Zeller, Hartnoll, Hartnoll, Herzog, Herzog, Hohenberg, Iqbal, Johanna Erdmenger, Kaminski, Kovtun, Landau, Landau, Landsteiner, Leslie, Natsuume, Patrick Kerner, Pujol, Sarman, Schafer, Son, Son   +33 more
core   +1 more source

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

Advanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora, Tales V. Lisbôa, Axel Spickenheuer, Rogério J. Marczak, Jakson M. Vassoler   +4 more
wiley   +1 more source

Viscosities of the Gay-Berne nematic liquid crystal

, 1995
We present molecular dynamics simulation measurements of the viscosities of the Gay-Berne phenomenological model of liquid crystals in the nematic and isotropic phases.
A. G. Chmielewski, A. L. Tsykalo, A. M. Smondyrev, A. P. J. Emerson, C. Yeung, D. Forster, D. Frenkel, D. Langevin, E. DeMiguel, E. DeMiguel, G. R. Luckhurst, G. R. Luckhurst, George B. Loriot, J. G. Gay, J. Prost, K. A. Kemp, M. Miesowicz, M. P. Allen, M. P. Allen, P. A. Lebwohl, Robert A. Pelcovits, S. Nose, S. Sarman, S. Sarman, S. Sarman, W. G. Hoover, W. H. de Jeu, W. H. de Jeu, Z. Zhang   +28 more
core   +2 more sources

Shear Stress Measurements of Non-Spherical Particles in High Shear Rate Flows [PDF]

, 2008
The behavior of liquid-solid flows varies greatly depending on fluid viscosity; particle and liquid inertia; and collisions and near-collisions between particles. Shear stress measurements were made in a coaxial rheometer with a height to gap ratio (b/r0)
A. Jeffrey Giacomin, Albert Co, Christopher E. Brennen, Erin Koos, Gary L. Leal, Melany L. Hunt, Ralph H. Colby   +6 more
core   +1 more source

Additive Gaussian Process Regression for Predictive Design of High‐Performance, Printable Silicones

Advanced Engineering Materials, EarlyView.
A chemistry‐aware design framework for tuning printable polydimethylsiloxane (PDMS) for vat photopolymerization (VPP) is developed using additive Gaussian process (GP) modeling. Polymer network mechanics informs variable groupings, feasible formulation constraints, and interaction variables.
Roxana Carbonell, Martha Leach, Hongtao Song, Carolyn Seepersad   +3 more
wiley   +1 more source

Experimental and Numerical Simulation Study on the Shear Behavior of Rock-like Specimens with Non-Persistent Joints

Applied Sciences
Shear failure of non-persistent joints represents a significant contributing factor to rock mass instability. Since non-persistent joints have various parameter characteristics, it is of great practical importance to explore shear behavior with different
Gang Wang, Hongqi Li, Zhaoying Li
doaj   +1 more source

Effect of Oxygen Content on Surface and Subsurface Integrity During Turning of Ti–6Al–4V

Advanced Engineering Materials, EarlyView.
This study examines how oxygen content in the ambient atmosphere affects the surface and subsurface properties of Ti–6Al–4V during turning. Results show that oxygen does not influence surface roughness. However, machining in an extremely high vacuum‐adequate atmosphere increases surface hardness by up to 7.8% and induces compressive residual stresses ...
Benjamin Bergmann, Berend Denkena, Hilke Petersen, Florian Schaper   +3 more
wiley   +1 more source

Deformation Behavior of Shear Band under Simple Shear in Polycarbonate.

Journal of the Society of Materials Science, Japan, 2002
In order to investigate a constitutive law associated with shear band in amorphous glassy polymers, polycarbonate specimens were tested under forward and backward loadings in simple shear at room temperature. It was shown that (1) the shape of shear stress-strain curve was decided by the formation, lengthening and widening of the shear band at both ...
Masayoshi KITAGAWA, Masahide KIMURA
openaire   +2 more sources

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source