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Fatigue crack growth of semi-elliptical surface cracks
International Journal of Fatigue, 1990Abstract An experimental and theoretical investigation of surface crack growth in 28 mm thick steel plates loaded in pure bending was carried out. The experimental work involved testing plates with initial semi-elliptical surface flaws with aspect ratios of a/c = 0.1, 0.25, 0.5 and 1.0. Crack growth and crack shape development were monitored using AC
N MCFADYEN, R BELL, O VOSIKOVSKY
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Development of Crack Depth Indicator for Deep Surface Crack
Nondestructive Evaluation Engineering, 2005Crack depth indicator using a direct current potential drop technique has been generally applied to the nondestructive inspection in the thermal power plants such as steam pipe and turbine casing. In this paper, the authors presented practical studies concerning the development of the advanced crack depth indicator for the deep surface crack.
Manabu Hayakawa +3 more
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2000
Metal fatigue or failure usually begins from the surface. Aircraft fuselage, nuclear power plant steam generator tubings and steel bridges are examples of environments in which this type of metal failure occurs. Hence, fatigue and stress crack detection on metallic structures is of utmost importance to the on-line and in-service inspections of metallic
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Metal fatigue or failure usually begins from the surface. Aircraft fuselage, nuclear power plant steam generator tubings and steel bridges are examples of environments in which this type of metal failure occurs. Hence, fatigue and stress crack detection on metallic structures is of utmost importance to the on-line and in-service inspections of metallic
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Crack opening displacement in pressurized spheres with surface cracks
International Journal of Fracture, 1985The crack opening displacement at the centre of a surface crack in a pressurized sphere has been calculated using a strip yielding model. The shallow shell solution for the stress intensity factor derived by Folias has been extended to derive the COD, and the resulting equations have been solved numerically by a procedure due to Erdogan.
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Multiple surface crack interaction of non-coplanar cracks
Hollow cylinders represent one of the important elements in the industry. It is widely recognized that fracture characterizes the predominant mode of failure in cylindrical structures, which is precipitated by inherent imperfections or flaws. Over a period, these imperfections (cracks) may propagate and culminate in catastrophic failure, thereby ...Mohammed, Omar +3 more
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Probabilistic modeling and simulation of multiple surface crack propagation and coalescence
Applied Mathematical Modelling, 2020Shun-Peng Zhu, Ding Liao
exaly