Results 1 to 10 of about 66,884 (287)

Evaluation of Crack Propagation and Post-cracking Hinge-type Behavior in the Flexural Response of Steel Fiber Reinforced Concrete [PDF]

open access: yesInternational Journal of Concrete Structures and Materials, 2017
An experimental evaluation of crack propagation and post-cracking behavior in steel fiber reinforced concrete (SFRC) beams, using full-field displacements obtained from the digital image correlation technique is presented.
Sahith Gali, Kolluru V. L. Subramaniam
doaj   +3 more sources

Machine learning-based prediction of crack mouth opening displacement in ultra-high-performance concrete [PDF]

open access: yesScientific Reports
Ultra-high-performance concrete (UHPC) has become an essential construction material due to its exceptional strength, durability, and crack-resistance properties, making it well-suited for long-span bridges, protective structures, and demanding ...
Arsalan Mahmoodzadeh   +7 more
doaj   +2 more sources

Novel Characterizations of Effective SIFs and Fatigue Crack Propagation Rate of Welded Rail Steel Using DIC

open access: yesMetals, 2023
The fatigue crack growth-rate test of rail head, waist, and bottom material for U71Mn welded rail was carried out. Digital image correlation (DIC) was used to capture the full-field displacement.
Xiu-Yang Fang   +4 more
doaj   +1 more source

Study of Crack Closure Effect of Hull Plate under Low Cycle Fatigue

open access: yesJournal of Marine Science and Engineering, 2022
The crack closure phenomenon significantly influences low cycle fatigue (LCF) crack growth. The crack closure theory deems that a crack can grow only when the applied load is greater than the fatigue crack opening and closing loads.
Qin Dong, Mengyuan Rong, Geng Xu
doaj   +1 more source

In-situ observation of micro-cracking in a SiC/BN/SiC ceramic matrix composite under tension

open access: yesOpen Ceramics, 2023
Crack spacing and crack opening displacement values are critical for CMC damage and oxidation modeling. A tensile stage used with light and scanning electron microscopy (SEM) was utilized to evaluate micro-cracking under load in SiC/BN/SiC ceramic matrix
Kaitlin Detwiler   +2 more
doaj   +1 more source

Modelling of Crack Growth Using a New Fracture Criteria Based Peridynamics [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2019
Peridynamics (PD) is a nonlocal continuum theory based on integro-differential equations without spatial derivatives. The elongation fracture criterion is implicitly incorporated in the PD theory, and fracture is a natural outcome of the simulation.
Jinhai Zhao
doaj   +1 more source

Measurement of the stress intensity factor and the effective stress intensity factor range of a mode I surface crack using the digital image correlation method

open access: yesNihon Kikai Gakkai ronbunshu, 2016
Crack opening displacement around a mode I surface crack tip was measured by digital image correlation method to determine the stress intensity factor and the effective stress intensity factor range.
Yuichi ONO   +2 more
doaj   +1 more source

Significance of separations occurring in mechanical testing of thermomechanical rolled pipeline steels

open access: yesJournal of Pipeline Science and Engineering, 2022
In this study, the origin of separations is investigated in modern high strength pipeline steels. In-depth microstructure characterization and property correlation is used to demonstrate that preferred crystallographic planes are responsible for the ...
Sebastian Scholl   +2 more
doaj   +1 more source

Fatigue life prediction of z-fibre pinned composite laminate under mode I loading [PDF]

open access: yes, 2019
A hybrid method is presented combining linear elastic fracture mechanics with nonlinear damage mechanics that can predict the fatigue crack growth rate in z-fibre pinned composites under mode I loading.
Ayre, David   +3 more
core   +2 more sources

Experimental measurement and model validation of COD in pipe under bending with off-centered circumferential crack [PDF]

open access: yesFracture and Structural Integrity, 2014
The leak area of circumferential through-thickness crack in pipe under bending depends on the position of the crack with respect to the bending plane. In leak-before-break (LBB) analysis, the assumption that the crack is symmetrically placed with respect
D. Gentile, G. Iannitti, N. Bonora
doaj   +2 more sources

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