Results 11 to 20 of about 652,868 (246)

Fatigue crack growth rates under variable amplitude load spectra containing tensile underloads [PDF]

open access: yes, 2003
An extensive research program was performed to investigate the load interaction effect of the combined action of small amplitude high R ratio cycles and large amplitude low R ratio underloads on the crack growth of large cracks.
Zitounis, Vasilios
core   +7 more sources

Crack Initiation in Viscoelastic Materials [PDF]

open access: yesPhysical Review Letters, 2018
In viscoelastic materials, individually short-lived bonds collectively result in a mechanical resistance which is long-lived but finite, as ultimately cracks appear. Here we provide a microscopic mechanism by which cracks emerge from the nonlinear local bond dynamics.
Yuval Mulla   +3 more
openaire   +3 more sources

Crack Initiation in Brittle Materials [PDF]

open access: yesArchive for Rational Mechanics and Analysis, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Antonin Chambolle   +2 more
openaire   +5 more sources

Gaps, challenges and possible solution for prediction of wheel–rail rolling contact fatigue crack initiation

open access: yesRailway Engineering Science, 2023
The prediction of wheel/rail rolling contact fatigue (RCF) crack initiation during railway operations is an important task. Since RCF crack evolution is influenced by many factors, its prediction process is complex.
Shuyue Zhang   +6 more
doaj   +1 more source

Initiation of Cracks in Dental Amalgam [PDF]

open access: yesJournal of Dental Research, 1975
The force required to initiate cracks in dental amalgam beams was measured and related to the microstructure. The force measured was dependent on age and on the distribution of phases on the tension side of the beam. The Ag-Cu phase is most resistant to failure in Dispersalloy and an experimental alloy.
Younis, Osama   +2 more
openaire   +3 more sources

Crack path in aeronautical titanium alloy under ultrasonic torsion loading [PDF]

open access: yesFracture and Structural Integrity, 2016
This paper discusses features of fatigue crack initiation and growth in aeronautical VT3-1 titanium alloy under pure torsion loading in gigacycle regime. Two materials: extruded and forged VT3-1 titanium alloys were studied.
A. Nikitin   +3 more
doaj   +1 more source

Study on the Relationship between Crack Initiation and Crack Bifurcation in Walnut Shells Based on Energy

open access: yesAgriculture, 2023
Clarifying the dissipated energy required for crack expansion is an effective way to control material crushing. Therefore, based on the material fracture probability model and fractal theory, the energy range required for crack extension was determined ...
Xiaolan Man   +6 more
doaj   +1 more source

Crack growth resistance in nuclear graphite [PDF]

open access: yes, 2002
R-curve behaviour is often used for evaluating crack growth resistance in quasibrittle materials but few studies have focused on polycrystalline graphite. In this study, R-curve behaviour in three commercial grade nuclear graphites, of varying structure
Fazluddin, Shahed
core   +7 more sources

Crack Initiation Behaviors of Granite Specimens Containing Crossing-Double-Flaws with Different Lengths under Uniaxial Loading

open access: yesAdvances in Civil Engineering, 2020
Crack initiation is an important stage in the failure process of rock masses. In this paper, crack initiation behaviors (crack initiation model, crack initiation location, crack initiation angle, and crack initiation stress) of granite specimens ...
Haiyang Pan   +3 more
doaj   +1 more source

Crack Growth Behavior through Wall Pipes under Impact Load and Hygrothremal Environment

open access: yesAl-Khawarizmi Engineering Journal, 2018
This research concerns study the crack growth in the wall of pipes made of low carbon steel under the impact load and using the effect of hygrothermal (rate of moisture 50% and 50℃ temperature).
Ali Jamal Khaled, Ahmed Abdul Hussain
doaj   +1 more source

Home - About - Disclaimer - Privacy