Results 81 to 90 of about 347,338 (355)

A Different Perspective on the Solid Lubrication Performance of Black Phosphorous: Friend or Foe?

open access: yesAdvanced Engineering Materials, EarlyView.
Researchers investigate black phosphorous (BP) as a standalone solid lubricant coating through ball‐on‐disc linear‐reciprocating sliding experiments in dry conditions. Testing on different metals shows BP doesn't universally reduce friction and wear. However, it achieves 33% friction reduction on rougher iron surfaces and 23% wear reduction on aluminum.
Matteo Vezzelli   +5 more
wiley   +1 more source

Reflection and Exclusion of Shear Zones in Inhomogeneous Granular Materials [PDF]

open access: yes, 2011
Shear localization in granular materials is studied experimentally and numerically. The system consists of two material layers with different effective frictions. The presence of the material interface leads to a special type of "total internal reflection" of the shear zone.
arxiv   +1 more source

Mechanisms of De‐icing by Surface Rayleigh and Plate Lamb Acoustic Waves

open access: yesAdvanced Engineering Materials, EarlyView.
Ice accretion impacts daily life, renewable energy generation, maintenance, and security in industries and aeronautics. Acoustic waves (AW) are a promising method for ice removal, although de‐icing mechanisms require further investigation to optimize energy efficiency.
Shilpi Pandey   +15 more
wiley   +1 more source

Geology of late-Variscan Sàrrabus pluton (south-eastern Sardinia, Italy)

open access: yesJournal of Maps, 2021
This paper deals with the geological mapping of the late-Variscan Sàrrabus pluton, (south-eastern Sardinia), a shallow multiple and composite igneous complex dominated by several generations of granodiorites, metaluminous and peraluminous granites and ...
F. Secchi   +7 more
doaj   +1 more source

Strain localization in a shear transformation zone model for amorphous solids [PDF]

open access: yes, 2007
We model a sheared disordered solid using the theory of Shear Transformation Zones (STZs). In this mean-field continuum model the density of zones is governed by an effective temperature that approaches a steady state value as energy is dissipated. We compare the STZ model to simulations by Shi, et al.(Phys. Rev. Lett. 98 185505 2007), finding that the
arxiv   +1 more source

Kinematics of the Phippsburg Shear Zone at Hermit Island and the Wood Islands, Small Point, Maine [PDF]

open access: yes, 2012
The Phippsburg Shear Zone is located within the Casco Bay restraining bend associated with the Norumbega fault zone in south central Maine. Mapping of the shear zone was conducted at Hermit Island during the summer of 2011 as part of an EDMAP grant.
Miller, Peter Kent
core   +1 more source

Beyond Global Mechanical Properties: Bioinspired Triply‐Periodic Minimal Surface Cellular Solids for Efficient Mechanical Design and Optimization

open access: yesAdvanced Engineering Materials, EarlyView.
Using novel probe‐based metrics, this study evaluates lattice structures on criteria critical to cellular solid optimization. Triply‐periodic minimal surface (TPMS) lattices outperform other lattices, offering more predictable mechanical behavior in complex design spaces and, as a result, higher performance in optimized models.
Firas Breish   +2 more
wiley   +1 more source

Transpression and tectonic exhumation in the Heimefrontfjella, western orogenic front of the East African/Antarctic Orogen, revealed by quartz textures of high strain domains

open access: yesPolar Research, 2016
The metamorphic basement of the Heimefrontfjella in western Dronning Maud Land (Antarctica) forms the western margin of the major ca. 500 million year old East African/East Antarctic Orogen that resulted from the collision of East Antarctica and greater ...
Wilfried Bauer   +3 more
doaj   +1 more source

Shear transformation zone analysis of shear reversal during granular flow [PDF]

open access: yesarXiv, 2008
Experimental measurements of the onset of granular flow are directly compared to predictions of the "shear transformation zone" (STZ) theory of amorphous plasticity. The STZ equations make it possible, on a coarse grained level, to incorporate the anisotropy of the particle contact network and its dynamic evolution including changes in the contact ...
arxiv  

Structure and Rheology of the Sandhill Corner Shear Zone, Norumbega Fault System, Maine: a Study of a Fault from the Base of the Seismogenic Zone [PDF]

open access: yes, 2012
Determining the structure and rheology of a seismogenic fault at frictional-to-viscous transition (FVT) depths is vital for understanding its strength and behavior. Few studies describe a fault from within this depth level, so the architecture of a shear
Price, Nancy Ann
core   +1 more source

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