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- W2376428529 abstract "In order to determine the stress intensity factors (SIFs) for a semi-elliptical surface crack at the T-root groove of a turbine disc under centrifugal forces, three-dimensional finite element method was employed to solve the displacement field of the cracked disc. The square-root stress singularity along the surface crack front was simulated using the quarter point singular elements collapsed by 20-node three-dimensional isoparametric elements. The contact interaction between the blade root and its groove was considered in the finite element analysis. The SIFs along the crack front for the surface crack with different aspect ratios were calculated by displacement correlation techniques, and the effect of the crack length on SIFs along surface crack front were investigated. The numerical results show that the modes I, II and III SIFs reach the maximum values of their individual modes at surface point and the mode I SIFs along the crack front increase as the surface crack length increases." @default.
- W2376428529 created "2016-06-24" @default.
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- W2376428529 date "2008-01-01" @default.
- W2376428529 modified "2023-09-27" @default.
- W2376428529 title "Numerical Investigation on Stress Intensity Factors for a Semi-elliptical Surface Crack at the T-root Groove of a Turbine Disc" @default.
- W2376428529 hasPublicationYear "2008" @default.
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