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Criterion for brittle fracture of notched or cracked specimens based on combined micro- and macro crack mechanics—II

✍ Scribed by T. Yokobori; Y. Sawaki; S. Nakanishi

Publisher
Elsevier Science
Year
1979
Tongue
English
Weight
969 KB
Volume
12
Category
Article
ISSN
0013-7944

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✦ Synopsis

Abatrrrt-Brittle fracture criterion based on combined micro-and macro crack mechanics was proposed in the previous paper. In the present paper more improved criterion for the brittle fracture based on this approach has been obtained as a function of ferrite grain diameter, over much wider range of crack tip radius including the case of small crack tip radius. The criterion is in good agreement with the experimental results on brittle fracture of notched or cracked specimens of low carbon steel. the crack length NOTATION

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A criterion for low-stress brittle fract
A criterion for low-stress brittle fracture of notched specimens based on combined micro- and macro fracture mechanics—1
✍ T. Yokobori; A. Kamei; S. Konosu 📂 Article 📅 1976 🏛 Elsevier Science 🌐 English ⚖ 915 KB

Based on the combined micro-and macro fracture mechanics, the two requisites necessary for the crack propagation, that is, the energy unstable requisite and the critical local stress requisite, are derived for the low-stress brittle fracture of notched specimens. Thus the fracture criterion was obta