Results 61 to 70 of about 382,947 (255)

Simple evaluation method of adhesive failure criterion in multiaxial stress states by uniaxial tensile tests

Mechanical Engineering Journal, 2018
We propose a simple tensile test with which to identify the parameters that constitute the failure criterion of an adhesive in a multiaxial stress state. In this paper, we define the failure criterion as the proportional limit of load-displacement curves
Masato IIMORI, Hiro TANAKA, Mayuko KIMURA, Yoji SHIBUTANI, Yang LIU   +4 more
doaj   +1 more source

Direct FE2 for simulating strain-rate dependent compressive failure of cylindrical CFRP

Composites Part C: Open Access, 2021
In this study, the strain-rate dependent compressive failure of cylindrical carbon fiber reinforced plastics (CFRP) is simulated by using Direct FE2.
Jun Koyanagi, Kodai Kawamoto, Ryo Higuchi, Vincent Beng Chye Tan, Tong-Earn Tay   +4 more
doaj   +1 more source

Shear band dynamics from a mesoscopic modeling of plasticity

, 2010
The ubiquitous appearance of regions of localized deformation (shear bands) in different kinds of disordered materials under shear is studied in the context of a mesoscopic model of plasticity.
Bulatov V V, Bulatov V V, Bulatov V V, Duran J, E A Jagla, Falk M L Toiya M Losert W, Mair R, Makhloufi R, Miller M, Russel W B, Scholz C H, Talamali M Petaja V Roux S Vandembroucq D, Weaire D   +12 more
core   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

Mechanical behavior of HTCE propellant: Dependence on strain rate and temperature

Polymer Testing
High-solid-content polymer composites such as solid propellants are widely used in different fields. Although the proportion of polymer components in the material is relatively low, the mechanical influence of polymers on composite materials is crucial ...
Cong Zhu, Wenhao Liu, Wu Yang, Teng Wang, Mengjing An, Yunjun Luo   +5 more
doaj   +1 more source

A Degradation Function Consistent with Cocks–Ashby Porosity Kinetics [PDF]

, 2018
The load carrying capacity of ductile materials degrades as a function of porosity, stress state and strain-rate. The effect of these variables on porosity kinetics is captured by the Cocks–Ashby model; however, the Cocks–Ashby model does not account for
Moore, John A.
core   +1 more source

Strain in epitaxial CoSi2 films on Si (111) and inference for pseudomorphic growth [PDF]

, 1989
The perpendicular x-ray strain of epitaxial CoSi2 films grown on Si(111) substrates at ~600 °C was measured at temperatures from 24 up to 650 °C. At 600 °C, the perpendicular x-ray strain is –0.86%, which is about the x-ray strain that a stress-free ...
Bai, Gang, Nicolet, Marc-A., Vreeland, Thad, Jr., Wang, K. L., Ye, Q.   +4 more
core   +1 more source

Tau acetylation at K331 has limited impact on tau pathology in vivo

FEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto, Yukio Matsuba, Mika Takahashi, Takaomi C. Saido   +3 more
wiley   +1 more source

Rate Dependence and Role of Disorder in Linearly Sheared Two-Dimensional Foams

, 2008
The shear flow of two dimensional foams is probed as a function of shear rate and disorder. Disordered foams exhibit strongly rate dependent velocity profiles, whereas ordered foams show rate independence.
D. Weaire, Gijs Katgert, Martin van Hecke, Matthias E. Möbius   +3 more
core   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source