Fatigue life estimation for ITER CS conductor jacket by probabilistic fracture mechanics

Feng, Jun

doi:10.1016/j.fusengdes.2005.09.002

Cited by 4 publications

(2 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The crack growth rate obtained from experiment for similar specimens under the same loading conditions are scattered due to the initial defects or non-homogeneity of the materials [9]. Various relations for crack growth rate can be found in the literature [10][11][12]. Three equations have gained more popularity, Paris, Forman and Walker.…”

Section: Analysis Of Crack Growth Ratesmentioning

confidence: 99%

See 1 more Smart Citation

Prediction by Genetic Algorithm and Measurement by Center Hole Drilling of Residual Stresses of MAG Weldment

Farrahi

Majzoobi

Fadaee

2009

AMR

View full text Add to dashboard Cite

In the present work, specimens were cut out from St-37 plates with 19 mm thickness. The thickness of plates was reduced to 12.5 mm by milling and grinding operations. Then a standard V-shaped fillet was made on one edge of the plates. Two plates were butt-welded by standard metal arc gas (MAG) welding process. Residual stresses induced by welding were measured on 20 specimens by centre hole drilling. Load controlled axial fatigue tests were carried out to determine the fatigue life of specimens. Crack growth rates were obtained from experiment. Fractography of specimens was performed. Genetic Algorithm (GA) was employed for prediction of residual stress value in weldments using the crack growth rates obtained from experiments. The results show that, by using the measured crack growth rates and GA model, residual stresses can be estimated with a good approximation.

show abstract

Section: Analysis Of Crack Growth Ratesmentioning

confidence: 99%

“…In which C and m are 14 10 64 . 1   and 4.32, respectively, and n is walker exponent and is assumed to be 0.79 [12]. As mentioned before, the crack growth length was measured during the fatigue tests by replica technique.…”

Section: Advances In Materials and Processing Technologiesmentioning

confidence: 99%

Prediction by Genetic Algorithm and Measurement by Center Hole Drilling of Residual Stresses of MAG Weldment

Farrahi

Majzoobi

Fadaee

2009

AMR

View full text Add to dashboard Cite

show abstract

A Study of Submicron Grain Boundary Precipitates in Ultralow Carbon 316LN Steels

Downey

Han

Kalu

et al. 2010

Metall Mater Trans A

View full text Add to dashboard Cite

This article reports our efforts in characterization of an ultralow carbon 316LN-type stainless steel. The carbon content in the material is one-third that in a conventional 316LN, which further inhibits the formation of grain boundary carbides and therefore sensitizations. Our primary effort is focused on characterization of submicron size precipitates in the materials with the electron backscatter diffraction (EBSD) technique complemented by Auger electron spectroscopy (AES). Thermodynamic calculations suggested that several precipitates, such as M 23 C 6 , Chi, Sigma, and Cr 2 N, can form in a low carbon 316LN. In the steels heat treated at 973 K (700°C) for 100 hours, a combination of EBSD and AES conclusively identified the grain boundary precipitates ( ‡100 nm) as Cr 2 N, which has a hexagonal closed-packed crystallographic structure. Increases of the nitrogen content promote formation of large size Cr 2 N precipitates. Therefore, prolonged heat treatment at relatively high temperatures of ultralow carbon 316LN steels may result in a sensitization.

show abstract

Low temperature physical properties of a high Mn austenitic steel JK2LB

2009

View full text Add to dashboard Cite

Fatigue life estimation for ITER CS conductor jacket by probabilistic fracture mechanics

Cited by 4 publications

References 14 publications

Prediction by Genetic Algorithm and Measurement by Center Hole Drilling of Residual Stresses of MAG Weldment

Prediction by Genetic Algorithm and Measurement by Center Hole Drilling of Residual Stresses of MAG Weldment

A Study of Submicron Grain Boundary Precipitates in Ultralow Carbon 316LN Steels

Low temperature physical properties of a high Mn austenitic steel JK2LB

Contact Info

Product

Resources

About