On the fracture of solids characterized by one or two parameters: Theory and practice

Based on the asymptotic stress fields including higher order terms at the crack tip of a non-linear material, conditions under which single or double parameter controlled onset of fracture initiation occur are discussed. A set of experimental data under cleavage fracture was analysed. It is shown th...

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Bibliographic Details
Published inJournal of the mechanics and physics of solids Vol. 42; no. 4; pp. 629 - 647
Main Authors Chao, Y.J., Yang, S., Sutton, M.A.
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 01.04.1994
Elsevier
Subjects
Exact sciences and technology
Fracture mechanics (crack, fatigue, damage...)
Fracture mechanics, fatigue and cracks
Fundamental areas of phenomenology (including applications)
Physics
Solid mechanics
Structural and continuum mechanics
Crack formation
Ruptures
Asymptotic solutions
Size effect
Fracture toughness
Plasticity zone
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Summary:Based on the asymptotic stress fields including higher order terms at the crack tip of a non-linear material, conditions under which single or double parameter controlled onset of fracture initiation occur are discussed. A set of experimental data under cleavage fracture was analysed. It is shown that under Mode I plane strain conditions two parameters J and A 2 can be utilized to predict the onset of fracture with J setting the loading level and A 2 relating to the constraint. Theoretical meanings of fracture toughness values corresponding to conditions of small scale yielding and the HRR stress distribution are discussed. A procedure of applying this concept to the evaluation of flawed structures is outlined.
ISSN:0022-5096
DOI:10.1016/0022-5096(94)90055-8