Results 51 to 60 of about 21,546 (307)

Electrospun Nanofibres for Load‐Bearing Composite Materials—A Review of Techniques, Mechanical Properties and Durability

open access: yesPolymer Composites, EarlyView.
Electrospun nanofibre for load‐bearing composite materials. ABSTRACT Electrospun nanofibres are emerging nanomaterials prized for their scalability, high surface area to volume ratio and yield. Their effectiveness in improving the mechanical properties of fiber reinforced composites is widely reported. Nanofibres could activate multiscale toughness and
Usaid Ahmed Shakil, Petr Hájek
wiley   +1 more source

Cleaved end-face quality of microstructured polymer optical fibres [PDF]

open access: yes, 2006
The cutting of a microstructured polymer optical fibre to form an optical end-face is studied. The effect of the temperature and speed of the cutting blade on the end-face is qualitatively assessed and it is found that for fibres at temperatures in the ...
Barton, Geoffrey   +5 more
core   +2 more sources

Fatigue Crack Nucleation and Growth in Recrystallized Annealed Ti‐6Al‐4V Combat Aircraft Structures

open access: yesFatigue &Fracture of Engineering Materials &Structures, EarlyView.
ABSTRACT In the Swiss Air Force (SAF) F/A‐18C/D Hornet fleet, recrystallized annealed Ti‐6Al‐4V was selected for the wing carry through bulkheads to meet their demanding operational usage profile requirements that included increased airframe strength and toughness.
I. Field   +5 more
wiley   +1 more source

Study of fractography of ferritic ductile iron at different temperatures and loading conditions

open access: yesMaterials Research Express
This study characterizes the fractography of ferritic ductile iron under various loads, including tensile, fatigue and bending, and impact conditions. The results indicate that ductile fracture is the primary mechanism observed during tensile testing at ...
Wenjie Wang   +9 more
doaj   +1 more source

Fractography can be used to analyze failure modes in polytetrafluoroethylene [PDF]

open access: yes, 1969
Fractographic principles used for analyzing failure in metals are applied to the analysis of the microstructure and fracture of polytetrafluoroethylene.
Nerren, B. H.
core   +1 more source

Evaluating the Probability of Survival and Damage Mechanisms of Resin Matrix Ceramics: Insights Into Wear Progression and Surface Damage Under Fatigue

open access: yesJournal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objective This study evaluated the probability of survival, failure modes, and fatigue‐induced wear progression, as well as assessed damage tolerance under simulated mastication in two resin matrix ceramics (polymer‐infiltrated ceramic networks (PICN) and resin nanoceramic (RNC)).
Mirelle M. Ruggiero   +3 more
wiley   +1 more source

Fracturing behavior of brittle solids containing 3D internal crack of different depths under ultrasonic fracturing

open access: yesInternational Journal of Mining Science and Technology, 2022
Ultrasonic fracturing (UF) can be used to form crack networks for oil or gas in the mining industry and hard rock excavation. In this paper, the three-dimensional internal laser-engraved crack method (3D-ILC) is introduced to make penny-shaped internal ...
Haijun Wang   +4 more
doaj   +1 more source

A document analysis of the visibility of sustainability in TVE teacher education programme: the case of a Malaysian HEI [PDF]

open access: yes, 2017
There has been a global call for institutions of learning to engage in Education for Sustainable Development (ESD) by leading world organisations. Although scholars advocate for an interdisciplinary approach to sustainability, the research literature ...
Jaat, Norrizam   +7 more
core   +1 more source

Fatigue Performance and Failure Loads of Composition‐Gradient Multilayer Zirconia: Partial‐Coverage Restorations Versus Single Crowns at Different Thicknesses

open access: yesJournal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objective This study investigated the influence of restoration type (partial‐coverage versus crown) and ceramic‐layer thickness on the fatigue behavior and failure load of monolithic composition‐gradient multilayer zirconia (4Y‐PSZ/5Y‐PSZ) molar restorations. Material and Methods Seventy‐two CAD/CAM‐fabricated monolithic zirconia restorations (
F. A. Spitznagel   +7 more
wiley   +1 more source

Microscopic observation of creep-fatigue crack propagation in lead-free solder

open access: yesNihon Kikai Gakkai ronbunshu, 2015
Creep-fatigue crack propagation tests of lead-free solder were conducted under various loading waveforms. The waveforms adapted in displacement-controlled tests were four triangular waveforms: pp waveform having fast loading-unloading, cc waveform having
Keisuke TANAKA   +4 more
doaj   +1 more source

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