Results 21 to 30 of about 22,441 (265)

Discontinuous crack fronts of three-dimensional fractures [PDF]

open access: yesEurophysics Letters (EPL), 1998
The relation between fracture surface morphology and the three-dimensional structure of crack fronts is investigated through direct observation of brittle cracks in gels. A key notion in this investigation is the discontinuity of the crack front, whose advancement creates the fracture surface.
Tanaka, Yoshimi   +3 more
openaire   +3 more sources

Extended three-dimensional analysis of cracked slopes using upper-bound limit method

open access: yesYantu gongcheng xuebao, 2021
The existence of cracks will reduce the stability of a slope and the three-dimensional effect is more significant when its width is limited. Therefore, it is necessary to evaluate the stability of cracked slopes.
RAO Ping-ping 1, WU Jian 1, CUI Ji-fei 1, ZHAO Lin-xue 2
doaj   +1 more source

Stress analysis near a small crack within singular stress field in a three-dimensional bonded joint under a tensile load

open access: yesNihon Kikai Gakkai ronbunshu, 2014
Stress singularity usually occurs at a vertex of interface in a three-dimensional joint. Crack frequently initiates at a vertex and a joint fails under an external force and a thermal load.
Hideo KOGUCHI, Naoki KIMURA
doaj   +1 more source

Stress intensity factor of a penny-shaped crack with small-disturbed crack front line

open access: yesMechanical Engineering Journal, 2018
In this paper, the stress intensity factor K  for the crack front line α − ε (1 + cosmθ ) , which is slightly perturbed from a complete circular line with a radius of α, is solved.
Masayuki ARAI
doaj   +1 more source

Weibull stress analysis for the corner crack in reactor pressure vessel nozzle

open access: yesAdvances in Mechanical Engineering, 2019
The nozzle region of a reactor pressure vessel experiences higher and more complex stresses than the remaining part of the reactor pressure vessel. If a corner crack is postulated in the nozzle region, it is necessary to consider the potential strong ...
Ting Jin   +5 more
doaj   +1 more source

An Assessment Method of Sealing Performance and Stress Intensity Factors at Crack Tip of Subsea Connector Metal Sealing Rings

open access: yesEnergies, 2022
Subsea connectors are of a critical part for the sealing of subsea production systems. The working environment makes cracks initiate easily on subsea connector sealing rings.
Yingying Wang   +4 more
doaj   +1 more source

A closed form for the Stress Intensity Factor of a small embedded square-like flaw

open access: yesFracture and Structural Integrity, 2020
In the present work, the stress intensity factor (SIF) of a small embedded square-like flaw is calculated by means of a procedure based on the Oore-Burns integral.
Paolo Livieri, Fausto Segala
doaj   +3 more sources

An Eddy Current-Based Structural Health Monitoring Technique for Tracking Bolt Cracking

open access: yesSensors, 2020
Bolted joints are the primary structures for the load transfer of large-scale structures. It is vital to monitor the process of bolt cracking for enduring structural safety.
Hu Sun   +4 more
doaj   +1 more source

Probabilistic analysis and simulation of crack propagation in concrete pavements and surfaces

open access: yesScientific Reports, 2022
The surface of concrete pavement is susceptible to cracking. The propagation of a crack in a concrete structure may take the form of a one-dimensional line crack, a two-dimensional surface crack, or a three-dimensional volume crack.
Moussa Leblouba   +2 more
doaj   +1 more source

Experimental study on fatigue cracking in pre-corroded aluminum alloy 2024-T4 via digital image correlation

open access: yesJournal of Aeronautical Materials, 2020
The fatigue cracking behavior in pre-corroded AA2024-T4 associated with three different levels of maximum stresses and stress ratios via three-dimensional digital image correlation (3D-DIC) was investigated.
SONG Haipeng, LIU Changchun
doaj   +1 more source

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