Sociedad Española de Integridad Estructural
Grupo Español de Fractura

Sociedad Española de Integridad Estructural
Grupo Español de Fractura

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Ductile Fracture of an Embrittled Stainless Steel under Mode l+II Loading Experimental Evaluation of the R6 Method

KL.Jeon  B. Marini  D. François      

Anales de la Mecánica de la Fractura, nº 9 . 1992 . Pág. 252 -256
Ver (.pdf): Anales09-044

Resumen: The ductile fracture behavior under mixed mode I+II loading is studied for a 316L stainless steel thermally ged for 1000 hours at 700°C. Microstructural examinations and mechanical tests (tension, Charpy impact and fracture toughness CTJ tests) were performed in three different orientations of speeimen selection (T, L and TL). Asymmetric and symmetric four-point bend specimens were tested under mixed-mode I+II and pure mode I and II loadings. Both crack opening and crack sliding displacements were measured by a triple-extensometer. The limit load and approximate Jintegral analyses were carried out. The R6 method was applied in its threc options, giving a conservative prediction of the crack Iml!atwn. With the F.A.D. derivcd from the experimental data for each mode, the crack initiation loads could be well estimated.

LocalizaciónAiguablava, Gerona

CEA/CEREM/DTM/SRMA, Centre d'Etudes de Saclay. 91191 Gif-sur-Yvette. France
CEA/CEREM/DTM/SRMA, Centre d'Etudes de Saclay. 91191 Gif-sur-Yvette. France
CEA/CEREM/DTM/SRMA, Centre d'Etudes de Saclay. 91191 Gif-sur-Yvette. France




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