Results 41 to 50 of about 236,901 (237)

The effect of residual stresses arising from laser shock peening on fatigue crack growth [PDF]

, 2010
Residual stresses have in the past been introduced to manipulate growth rates and shapes of cracks under cyclic loads. Previously, the effectiveness of shot peening in retarding the rate of fatigue crack growth was experimentally studied.
Brennan FP, Chahardehi A, Steuwer A, Brennan, Feargal P., Chahardehi, A., Steuwer, Axel, Brennan, F. P., Chahardehi, Amir Ebrahim   +7 more
core   +1 more source

Probing Electrocatalyst Design for Product Selectivity in CO2 Reduction

Advanced Science, EarlyView.
Selective CO2 electroreduction is controlled by catalyst structure, dynamic surface reconstruction, adsorbate interactions, and reaction microenvironment. This review summarizes Cu‐ and non‐Cu‐based catalysts, single‐atom and molecular systems, degradation pathways, and operando/computational strategies for steering CO2RR toward hydrocarbons ...
Suvodeep Sen, Bapan Biswas, Apinya Ngoipala, Julia Wiktor, Ujjwal Pal, Shalini Singh   +5 more
wiley   +1 more source

Effect of Voids on the Crack Kinking in Single Lap Joints [PDF]

, 2015
Polymer matrix composites are used extensively for their exceptional mechanical properties. The effect of voids on the energy release rate of interface crack has been studied before; however none of the studies investigated the effect of voids on the ...
Sengab, Ahmed M
core   +1 more source

Flat Bands Induced by Non‐Collinear Antiferromagnetism in CoBi2Te4

Advanced Science, EarlyView.
Flat bands emerge at the edges of intrinsically non‐collinear antiferromagnetic CoBi2Te4 two‐septuple layers through the interplay of spin–orbit coupling–driven band inversion and non‐collinear antiferromagnetism, uncovering a previously unexplored mechanism for flat‐band formation and opening new opportunities for strongly correlated quantum states ...
Ziyuan Zhao, Yuefeng Yin, Jinxing Gu, Mark T. Edmonds, Nikhil V. Medhekar   +4 more
wiley   +1 more source

Prediction of fretting crack propagation based on a short crack methodology [PDF]

, 2008
Fretting tests have been conducted to determine the maximum crack extension under partial slip conditions, as a function of the applied tangential force amplitude.
Hills, David, Kubiak, K, Nowell, D., Nowell, David, Hills, DA, Fouvry, S, Kubiak, Krzysztof, Kubiak, K., Hills, D.A., Fouvry, S., Nowell, D   +10 more
core   +1 more source

Chiral Morphing of Liquid Crystal Polymer Networks

Advanced Science, EarlyView.
This paper reviews how macroscopic chirality spontaneously arises from liquid crystal polymer materials. It describes how alignment is utilized to create the mechanical anisotropy, geometric misorientation and asymmetry that leads to chiral shape morphing, how shape selection between helicoids and helices arises, the techniques used to prepare these ...
Laurens T. de Haan
wiley   +1 more source

ACSL4‐Dependent Lysosomal Lipid Peroxidation Links WTAP‐Mediated m6A Modification to Intervertebral Disc Degeneration

Advanced Science, EarlyView.
IL‐1β upregulates the protein level of WTAP, which promotes the m6A modification of ACSL4 mRNA in an IGF2BP2‐dependent manner, thereby enhancing its stability. The increased ACSL4 drives lipid peroxidation, leading to lysosomal membrane permeabilization (LMP) and impaired mitophagy, which collectively accelerate intervertebral disc degeneration (IVDD).
Shu Jia, Xu Gao, Laimin Zhu, Haixia Song, Jing Wu, Shang Chen, Sheng Gao, Lu Zhang, Chunyang Meng   +8 more
wiley   +1 more source

Introduction of a fretting-fatigue mapping concept: Development of a dual crack nucleation - crack propagation approach to formalize fretting-fatigue damage [PDF]

, 2009
Fretting-fatigue induced by combined localized cyclic contact motion and external bulk fatigue loadings may result in premature and dramatic failure of the contacting components.
Kubiak, K.J., Kubiak, Krzysztof, Fouvry, Siegfried, Fouvry, S.   +3 more
core   +1 more source

Unexpectedly Strong Electrostatic Screening in Nano‐Ion Solutions

Angewandte Chemie International Edition, EarlyView.
Colloidal probe AFM measurements reveal unexpectedly strong electrostatic screening in aqueous solutions of the polyoxometalates phosphotungstate [PW12O40]3−${[{\rm PW}_{12}{\rm O}_{40}]}^{3-}$ and silicotungstate [SiW12O40]4−$[{\rm SiW}_{12}{\rm O}_{40}]^{4-}$.
Thomas Tilger, Esther Ohnesorge, Hayden Robertson, Michael Ludwig, Michalis Tsintsaris, Regine von Klitzing   +5 more
wiley   +1 more source

Fracture criterion for interface cracks in a tri-material adhesive joint

Вестник Самарского университета: Естественнонаучная серия
The initiation of a straight crack at the interface between dissimilar materials is considered. A modified maximum tangential stress (MMTS) criterion is presented to predict the conditions for the initiation of failure in initially straight bimaterial ...
D. A. Kuznetsov
doaj   +1 more source