Warm pre-stressing tests on specimens with semi-elliptical cracks and analysis of the results

Yuritzinn, T.; Ferry, Laurent; Chapuliot, S.; Moinereau, Dominique; Dahl, Anna; Gilles, Philippe

doi:10.1016/j.engfracmech.2009.09.006

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Cited by 6 publications

(2 citation statements)

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“…More recently, studies have shown the relevance of WPS effect on complex geometries [8,9] and biaxial loading conditions [10], which have been shown to better mimic the mechanical state encountered by a subcladding defect in RPV. The possibility of a positive stress intensity factor variation as the temperature decreases has also been assessed [11,12].…”

Section: Introductionmentioning

confidence: 98%

Warm PreStress effect on highly irradiated reactor pressure vessel steel

Hure

Vaille

Wident

et al. 2015

Journal of Nuclear Materials

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Section: Introductionmentioning

confidence: 98%

Warm PreStress effect on highly irradiated reactor pressure vessel steel

Hure

Vaille

Wident

et al. 2015

Journal of Nuclear Materials

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“…Some examples of such preloading types are warm prestressing (WPS) [1][2][3][4][5][6][7][8][9][10], shot peening, and more recently, laser peening [11][12][13]. One of the common contributors to the benefits of these preloads is CRS, introduced at the crack tip.…”

Section: Introductionmentioning

confidence: 99%

Fracture Toughness Prediction under Compressive Residual Stress by Using a Stress-Distribution T-Scaling Method

Meshii

Ishihara²

2017

Metals

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Abstract:The improvement in the fracture toughness J c of a material in the ductile-to-brittle transition temperature region due to compressive residual stress (CRS) was considered in this study. A straightforward fracture prediction was performed for a specimen with mechanical CRS by using the T-scaling method, which was originally proposed to scale the fracture stress distributions between different temperatures. The method was validated for a 780-MPa-class high-strength steel and 0.45% carbon steel. The results showed that the scaled stress distributions at fracture loads without and with CRS are the same, and that J c improvement was caused by the loss in the one-to-one correspondence between J and the crack-tip stress distribution. The proposed method is advantageous in possibly predicting fracture loads for specimens with CRS by using only the stress-strain relationship, and by performing elastic-plastic finite element analysis, i.e., without performing fracture toughness testing on specimens without CRS.

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Scatter band prediction for fracture toughness of specimens with prior load

Yamashita

Hirano

2012

Engineering Fracture Mechanics

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Warm pre-stressing tests on specimens with semi-elliptical cracks and analysis of the results

Cited by 6 publications

References 12 publications

Warm PreStress effect on highly irradiated reactor pressure vessel steel

Warm PreStress effect on highly irradiated reactor pressure vessel steel

Fracture Toughness Prediction under Compressive Residual Stress by Using a Stress-Distribution T-Scaling Method

Scatter band prediction for fracture toughness of specimens with prior load

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