Characterization Using Passive or Interactive Techniques

Degueldre, C.

doi:10.1007/978-3-319-58006-7_3

Cited by 1 publication

(1 citation statement)

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“…Another observation is that, the larger the stress, the sharper the crack failure starting point drop to downward with time. As it is done by Degueldre (2017), cumulative crack failure probability with time is observed for specific fixed fracture toughness values following passive technique [Fig. 5].…”

Section: Probabilistic Crack Failure Analysis and Discussionmentioning

confidence: 99%

Probabilistic Assessment of Crack Failure of Reactor Pressure Vessel (RPV) Cladding Material

Sohel

Hossain

Datta

et al. 2018

J Bangladesh Acad Sci

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To design a Reactor Pressure Vessel (RPV), material property like crack must be considered as it is an unavoidable property of materials. Presence of crack in materials must be kept within limit to prevent material's failure. So, crack propagation must be analyzed and observed. In this paper, crack propagation due to stress and materials fracture toughness of reactor pressure vessel cladding has been observed to estimate cumulative probability of crack failure using Probabilistic Fracture Mechanics (PFM). Average crack size is guessed as 3 mm and geometry factor is considered as 1.12 to analyze edge crack. Final crack analysis range has been found to be 1.8 mm with crack propagation rate of  30% of its average size. Variation of critical crack size and crack initiation point for several design stresses and fracture toughness has been investigated with probabilistic fracture mechanics technique. The observed crack propagation by calculating final crack size and the cumulative crack failure probability of the reactor pressure vessel materials are presented in this work.

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Section: Probabilistic Crack Failure Analysis and Discussionmentioning

confidence: 99%