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- W2385280244 abstract "The prediction of 3-point bend specimen fracture toughness from the Charpy test result based on the local approach was studied. In the instrumented impact test for Charpy V-Notch (CVN) specimen, the curves of the Charpy absorbed energy, the loading point displacement and the load respectively against time were recorded for the X65 steel in the ductile-brittle transition temperature range. The finite element method (FEM) was conducted to investigate the stress/strain fields in the vicinity of the crack (for the bend specimen) and the notch (for the Charpy specimen) tips. Then the data from FEM analysis were input into a self-programmed code, and the local parameters controlling brittle fracture were obtained from the Charpy absorbed energy results and critical fracture toughness from 3-point bend tests. It was certified that the critical Weibull stress conform to two-parameter Weibull distribution and is independent of the specimen geometry and loading pattern in the local approach. Furthermore, the fracture toughness of bend specimen was predicted from the Charpy test results based on the local approach under the condition of brittle fracture. Not only did the paper prove the theory of local approach correct, but also confirmed that fracture toughness could be evaluated by the Charpy absorbed energy based on the local approach." @default.
- W2385280244 created "2016-06-24" @default.
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- W2385280244 date "2005-01-01" @default.
- W2385280244 modified "2023-09-28" @default.
- W2385280244 title "Evaluation of Fracture Toughness of Three-Point Bend Specimen from the Instrumented Impact Test Based on the Local Approach" @default.
- W2385280244 hasPublicationYear "2005" @default.
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