Results 21 to 30 of about 396,290 (347)
Development of a fretting-fatigue mapping concept: The effect of material properties and surface treatments [PDF]
, 2009 Fretting-fatigue induced by combined localized cyclic contact motion and external bulk fatigue loadings may result in premature and dramatic failure of the contacting components.
Araújo +32 more
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VIBROTHERMOGRAPHIC CRACK HEATING: A FUNCTION OF VIBRATION AND CRACK SIZE
AIP Conference Proceedings, 2009 Vibrothermography is an inspection technique that detects cracks by observing vibration induced crack heating. Frictional crack heating in a vibrating specimen is directly linked to the resonant vibrational stress on the crack. In simple geometries we can measure the vibrational mode structure and intuit the dynamic vibrational stress field on the ...
Stephen D. Holland +4 more
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Fractal scaling and crack-size effects on creep crack growth
Strength, Fracture and Complexity, 2020 Scaling effects on the creep crack growth behaviour are investigated by analyzing the results of compact tension (CT) tests on different-sized notched steel specimens appearing in the literature. Creep crack growth rate data are correlated to the elastic stress-intensity factor in terms of a Paris-type law, da∕dt = C0Kq, where C0 turns out to be a ...
Alberto CARPINTERI +2 more
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Fatigue Life Assessment and Reliability Analysis of Cope-Hole Details in Steel Bridges
The Baltic Journal of Road and Bridge Engineering, 2020 Cope-hole details are widely applied to steel bridges. However, the safety of steel bridges is influenced by the fatigue performance of welded details.
Ping Liao +5 more
doaj +1 more source
Effect of grain disorientation on early fatigue crack propagation in face-centred-cubic polycristals: A three-dimensional dislocation dynamics investigation [PDF]
, 2013 Three-dimensional dislocation dynamics simulations are used to study micro-crack interaction with the first micro-structural barrier in face-centred cubic bi-crystals loaded in high cycle fatigue conditions. In the examined configuration, we assumed that
depres, christophe +3 more
core +5 more sources
Crack-size and crack-orientation distributions of brittle materials.
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A, 1989 In this report, we derived a new theory by combining the previously obtained statistical theory fracture location with the multiaxial distribution function. Using this theory, we analysed not only 3 crack-size ditribution function but also the crack-orientation distribution. Both distribution function are considerably affected by the fracture criteria.
Yohtaro MATSUO +2 more
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Effect of circular holes on the ratchet limit and crack tip plastic strain range in a centre cracked plate [PDF]
, 2011 In this paper a centre cracked plate subjected to cyclic tensile loading and cyclic bending moment is considered. The effect of circular holes drilled in the region of the crack tip on the ratchet limit and crack tip plastic strain range is studied ...
Chen +17 more
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A crack-like notch analogue for a safe-life fretting fatigue design methodology [PDF]
, 2003 Various analogies have recently been proposed for comparing the stress fields induced in fretting fatigue contact situations, with those of a crack and a sharp or a rounded notch, resulting in a degree of uncertainty over which model is most appropriate ...
Ciavarella, M.
core +1 more source
Metals, 2021 This paper provides further understanding of the peak load effect on micro-crack formation and residual stress relaxation. Comprehensive numerical simulations using the finite element method are applied to simultaneously take into account the effect of ...
Jairan Nafar Dastgerdi +3 more
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Damage process of a fiber bundle with a strain gradient [PDF]
, 2008 We study the damage process of fiber bundles in a wedge-shape geometry which ensures a constant strain gradient. To obtain the wedge geometry we consider the three-point bending of a bar, which is modelled as two rigid blocks glued together by a thin ...
Kun, Ferenc, Nagy, Sandor
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