Results 41 to 50 of about 129,193 (316)

Fracture toughness assessment of surface cracks in slender ultra-high-strength steel plates

open access: yes, 2023
Safe design against unstable fractures in load-bearing structures is crucial at sub-zero temperatures where the brittle fracture toughness can be unfavourable, especially for high-stress designs incorporating ultra-high-strength steels.
Zuheir Barsoum   +7 more
core   +1 more source

Performance Analysis of Abradable Coating Systems for Aircraft Gas Turbines

open access: yesAdvanced Engineering Materials, EarlyView.
Three CoNiCrAlY/YSZ/MgAl2O4 abradable liner configurations on a nickel‐superalloy are evaluated by thermal‐gradient cycling and incursion tests. Laser ablation of the bondcoat and/or Y2O3‐stabilized ZrO2 (YSZ) intermediate layer increases mechanical interlocking and bonding for thick topcoats.
Hanna Heyl   +4 more
wiley   +1 more source

Discrimination criteria for interaction behavior between hydraulic fractures and natural fractures based on energy balance principle

open access: yesYouqi dizhi yu caishoulu
The interaction between hydraulic fractures and natural fractures has an important influence on the distribution and complexity of fracture networks after fracturing.
ZHANG Wang   +3 more
doaj   +1 more source

Propagation of hydraulic fractures in bedded shale based on phase-field method

open access: yesYantu gongcheng xuebao, 2022
Accurate prediction of the propagation path of hydraulic fractures in shale plays an important role in optimizing fracturing schemes and evaluating fracturing effects.
LIU Jia 1, XUE Yi 1, GAO Feng 2, TENG Teng 3, LIANG Xin 1
doaj   +1 more source

Fracture characteristics from two reactivated basement fault zones: examples from Norway and Shetland [PDF]

open access: yes, 2001
Detailed analyses of fracture attributes developed in basement rocks associated with two, crustal-scale faults, have enabled the characteristics and evolution of the fracture system geometry to be documented quantitatively.
Sleight, Janine Michelle
core  

Influence of loading rate, alkali fibre treatment and crystallinity on fracture toughness of random short hemp fibre reinforced polylactide bio-composites

open access: yes, 2011
Plane-strain fracture toughness (KIc) of random short hemp fibre reinforced polylactide (PLA) bio-composites was investigated along with the effect of loading rate, fibre treatment and PLA crystallinity.
Alan Fernyhough   +7 more
core   +1 more source

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

Fracture mechanics of volcanic eruptions [PDF]

open access: yes, 2009
Seismology is a key tool in the forecasting of volcanic eruptions. The onset of an eruption is often preceded and accompanied by an increase in local seismic activity, driven by fracturing within the edifice.
Matthews, C., Matthews, C
core  

Numerical simulation of wave propagation in 2-D fractured media : scattering attenuation at different stages of the growth of a fracture population

open access: yes, 2007
In this paper, we systematically examine the multiple scattering process of seismic waves at consecutive stages of the evolution of 2-D fracture population. Synthetic seismograms are computed using the pseudo-spectral method for elastic wave propagation,
Main, I.G.   +7 more
core   +1 more source

Effects of creep recovery on the fracture properties of concrete [PDF]

open access: yes, 2020
To study the influence of creep recovery on the fracture properties of concrete, the pre-notched specimens were firstly subjected to three-point bending (TPB) loading at 60% peak load (Pmax) over 30 days.
Dong, W, Li, J, Zhang, B, Zhou, X
core   +1 more source

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