1993
DOI: 10.2207/qjjws.11.454
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Significance of Shallow Notch CTOD Test. Fracture Toughness Measurement for Fracture Performance Evaluation of Weldments.

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“…Consequently, in bending specimen it was more difficult for brittle crack to branch than in tensile specimen. Here, it is proved that around notch of bending specimen, where branching occurred only in high crack speed, stress triaxiality is considerably small [4]. As a result, it can be concluded that high stress triaxiality promotes branching.…”
Section: Overviewmentioning
confidence: 74%
See 1 more Smart Citation
“…Consequently, in bending specimen it was more difficult for brittle crack to branch than in tensile specimen. Here, it is proved that around notch of bending specimen, where branching occurred only in high crack speed, stress triaxiality is considerably small [4]. As a result, it can be concluded that high stress triaxiality promotes branching.…”
Section: Overviewmentioning
confidence: 74%
“…Then, we compared the relation between fracture roughness and crack speed in two types of specimens. Since it had been proved that stress triaxiality differs in two types of specimens [4], effect of stress triaxiality upon fracture surface roughness can be observed by comparing results from these experiments. Fig.2 shows the forms of two types of specimens.…”
Section: Overviewmentioning
confidence: 99%