Analysis of specimen-fixture interaction for slow crack-growth studies

✍ Scribed by A.T. Jones; A.J. West

• Publisher: Elsevier Science
• Year: 1977
• Tongue: English
• Weight: 774 KB
• Volume: 9
• Category: Article
• ISSN: 0013-7944
• DOI: 10.1016/0013-7944(77)90047-9

✦ Synopsis

T&a scIf-loadi~ procedures used in stress-corrosion tests have important effects on the 8W&t& stress intensities. This study examines those effects and uses finite element calculations to generate curves of stress intensity as a function of flaw size for several specimen types in common use. By means of a procedure based on compliance, the resulting data are recombined into a form suitable for crack-growth studies. A reliable method that uses these results is suggested here for measuring Ilaw size during long-term tests. A testing me&& of consjdc~b~e versatifity based on commonly used fracture specimens is discussed, and experimentat experience with the method is descrii.