Numerical simulation of tearing–fatigue interactions in 316l(N) austenitic stainless steel

Sherry, Andrew H.; Wilkes, M. A.

doi:10.1016/j.ijpvp.2005.07.007

Cited by 11 publications

(3 citation statements)

References 3 publications

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“…6 shows the fracture surface of the nanostructured titania coating specimen that failed at σ = 355 MPa, N = 128,500 cycles. The nanostructured titania coating exhibits ductile tearing, feature A, a characteristic of bulk materials [19]. It is not common for thermal spray ceramic coatings to exhibit such characteristics.…”

Section: Characterization Of the Fracture Surfacesmentioning

confidence: 99%

Fatigue and mechanical properties of nanostructured and conventional titania (TiO2) thermal spray coatings

Ibrahim

Lima

Berndt

et al. 2007

Surface and Coatings Technology

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Fatigue and mechanical properties of nanostructured and conventional titania (TiO₂) thermal spray coatings Ibrahim, A.; Lima, R. S.; Berndt, C. C; Marple, B. R.Contact us / Contactez nous: nparc.cisti@nrc-cnrc.gc.ca. Abstract Nanostructured and conventional titania (TiO 2 ) coatings were thermally sprayed using air plasma spray (APS) and high velocity oxy-fuel (HVOF) processes. The fatigue and mechanical properties of these coatings were investigated. A previous study characterized these coatings by scanning electron microscopy (SEM) to investigate the microstructural features and Vickers indentation to determine the hardness and crack propagation resistance. This current complementary SEM work examined fracture surfaces of fatigue-tested samples to assess crack nucleation and to study mechanisms of deformations. The fatigue strength of coatings deposited onto low-carbon steel (AISI 1018) showed that the nanostructured titania coated specimens exhibited significantly higher fatigue strength compared to the conventionally sprayed titania. The straintime curve of AISI 1018 coated with TiO 2 indicated that the strain amplitude of the HVOF-sprayed nanostructured TiO 2 coating was much lower than the corresponding data of APS conventional TiO 2 . SEM analysis of fracture surfaces revealed valuable information regarding the influence of these coatings on the performance of the coated component. This investigation gives new understanding to the nature of fatigue and deformation of the nanostructured and conventional titania (TiO 2 ) coatings.

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Section: Characterization Of the Fracture Surfacesmentioning

confidence: 99%

Fatigue and mechanical properties of nanostructured and conventional titania (TiO2) thermal spray coatings

Ibrahim

Lima

Berndt

et al. 2007

Surface and Coatings Technology

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“…Up to present, various FE damage models [1][2][3][4][5][6] have been proposed and applied to simulate ductile fracture under cyclic loading conditions. [7][8][9][10][11] In most of existing works, ductile fracture simulation was performed for fracture specimens under cyclic loading. The authors developed the damage model based on multiaxial fracture strain energy and applied the model to simulate the ductile tearing under cyclic loading condition.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation and experimental validation of ductile tearing in A106 Gr. B piping system under simulated seismic loading conditions

Nam¹,

Youn²,

Lee³

et al. 2018

Proceedings of the Institution of Mechanical Engineers, Part L:

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This work presents finite element ductile tearing simulation and experimental validation of a piping system with a circumferential surface cracked (SC) A106 Gr. B pipe under simulated seismic loading condition. The damage model for simulation is based on the multiaxial fracture strain energy. The parameters in the damage model are determined from tensile and fracture toughness test results under the monotonic loading condition. For the system dynamic time history analysis, the Rayleigh damping model is employed. For cyclic constitutive equations, two models were considered to confirm its sensitivity. Predicted crack initiation and ductile tearing agree well with the experimental results.

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“…The reports related to cyclic JeR curves can be broadly classified under two categories: (a) tests done at load ratio R > 0 and (b) those carried out at R < 0. The available literature on cyclic JeR curves [5,6] for load ratio R > 0 suggest that there is either marginal or no change in the JeR curve, whereas results generated for the condition of R < 0 indicate considerable degradation of fracture resistance with negative R ratio [7]. The degradation in fracture resistance under cyclic loading has been attributed to the fact that crack tip gets sharper under alternating stress conditions at negative R ratio [7].…”

Section: Introductionmentioning

confidence: 99%

Acoustic emission during monotonic and cyclic fracture toughness tests of 304LN weldments

Roy

Bar

Sivaprasad

et al. 2010

International Journal of Pressure Vessels and Piping

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Numerical simulation of tearing–fatigue interactions in 316l(N) austenitic stainless steel

Cited by 11 publications

References 3 publications

Fatigue and mechanical properties of nanostructured and conventional titania (TiO2) thermal spray coatings

Fatigue and mechanical properties of nanostructured and conventional titania (TiO2) thermal spray coatings

Numerical simulation and experimental validation of ductile tearing in A106 Gr. B piping system under simulated seismic loading conditions

Acoustic emission during monotonic and cyclic fracture toughness tests of 304LN weldments

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