✦ LIBER ✦

Are the foundations of fracture mechanics cracked?

✍ Scribed by W.R. Tyson; G. Roy

Publisher: Elsevier Science
Year: 1989
Tongue: English
Weight: 283 KB
Volume: 33
Category: Article
ISSN: 0013-7944
DOI: 10.1016/0013-7944(89)90079-9

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✦ Synopsis

IT IS ONE: of the long-standing truisms of linear elastic fracture mechanics that biaxial loading does not affect the critical value of the stress intensity factor K, at fracture. This truism has been challenged recently by Eftis[l], who has claimed that " . . . application of Griffith's fracture criterion. . . with no imposed boundary constraints.. . leads to a critical tensile load that is dependent upon the toad biaxiality." If correct, this statement requires a fundamental resonation of the foundations of fracture mechanics, and also has important implications for the practical application of fracture meohanics in situations involving multi-axial loading.

This note presents an appraisal of Eftis' approach to the Griffith energy balance theory.

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