Results 31 to 40 of about 12,651 (176)

Effect of Crack Blunting on Subsequent Crack Propagation

open access: yes, 1995
Theories of toughness of materials depend on an understanding of the characteristic instabilities of the crack tip, and their possible interactions. In this paper we examine the effect of dislocation emission on subsequent cleavage of a crack and on ...
Canel, L. M.   +3 more
core   +2 more sources

Elevated-temperature impact toughness of Mg–(Gd, Y)–Zr alloy [PDF]

open access: yes, 2013
The Charpy impact results for Mg–10Gd–3Y–0.5Zr and Mg–11Y–5Gd–2Zn–0.5Zr alloys at various temperatures showed that Mg–10Gd–3Y–0.5Zr was more sensitive to temperature. The increase in impact toughness with temperature was related to the blunt crack-tip at
Anyanwu   +24 more
core   +1 more source

Hydrophobic ceramic membrane for membrane distillation: A mini review on preparation, characterization, and applications [PDF]

open access: yes, 2019
Membrane distillation (MD) is one of the emerging separation technologies with extremely high separation factor, especially in desalination application.
A. Rahman, Mukhlis   +7 more
core   +1 more source

Short crack initiation and growth at 600 °C in notched specimens of Inconel718

open access: yes, 2003
The natural initiation and growth of short cracks in Inconel®718 U-notch specimens has been studied at 600 °C in air. U notches were introduced through broaching, and hardness traces and optical microscopy on cross-sections through the U notch broaching ...
Connolley, T.   +2 more
core   +1 more source

Some experimental observations of crack-tip mechanics with displacement data [PDF]

open access: yes, 2015
Estudio de la mecánica en el vértice de la grieta mediante datos de desplazamiento.In the past two decades, crack-tip mechanics has been increasingly studied with full-field techniques.
Lopez-Crespo, Pablo   +3 more
core   +4 more sources

On Crack Closure and Crack Tip Shielding During Fatigue Crack Growth

open access: yes, 1999
Fatigue crack growth can be strongly influenced by crack closure, i. e., the contacting of the opposing faces of a fatigue crack above the minimum load in a loading cycle. This crack closure shields the crack tip from the full stress field, but different views are held regarding the extent of this shielding.
Marcus, Harris, McEvily, Arthur
openaire   +3 more sources

Crack Tip Shielding or Anti-shielding due to Smooth and Discontinuous Material Inhomogeneities

open access: yesInternational Journal of Fracture, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Simha, N.K.   +4 more
openaire   +2 more sources

Difracción de rayos X y difracción de neutrones en estudios de fatiga y fractura de materiales [PDF]

open access: yes, 2019
Conferencia invitada de Joseph F KelleherThe fatigue behaviour of polycrystalline metals is often studied through crack propagation analysis [1,2]. Nevertheless, understanding the mechanical processes that take place right at the crack tip [3,4] would ...
Kelleher, J F
core  

The influence of cerium oxide content on the crack growth in zirconia ceramic materials for engineering applications

open access: yesResults in Materials, 2021
This article proposes a method of using cerium oxide and zirconium oxide to prepare ceramic materials for cold welding equipment in the production of lithium batteries.
Xian-Ming Liu
doaj   +1 more source

Tensile strength and crack tip stress distribution of modified glass in the composite laser beam separation

open access: yesJournal of Materials Research and Technology, 2023
The tensile strength of the modified cross-section (MCS) determines to a certain extent whether the composite laser can complete the separation of glass, and the quality and efficiency of the separation.
Tianting Chen   +6 more
doaj   +1 more source

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