✦ LIBER ✦

Wide-range weight function for center cracks

✍ Scribed by X.R Wu; X.G Chen

Publisher: Elsevier Science
Year: 1989
Tongue: English
Weight: 696 KB
Volume: 33
Category: Article
ISSN: 0013-7944
DOI: 10.1016/0013-7944(89)90103-3

No coin nor oath required. For personal study only.

✦ Synopsis

A

closed-form wide-range weight function for center cracks in various finite bodies was presented based on a more accurate crack surface displacement representation. This weight function covers a large relative crack length a/w up to 0.85. High accuracy level was established through careful comparisons with several existing solutions. Closed-form stress intensity factor expressions were developed for a number of basic load cases, which makes the analysis possible for center cracks subjected to arbitrary crack face loading. Of particular interest is the segment uniform pressure loading on the crack surface which can be efficiently used for the Dugdale Model based fracture and fatigue analyses.

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