Development of stress intensity factor equations for rectangular shaped surface flaws in a plate
Year: 2024
Type: article
Abstract: Finite element computations and development of equations of stress intensity factors for rectangular shaped surface flaws in a plate are presented. Rectangular surface flaws rather than semi-elliptic shapes are assumed here because of the typical features of the stress corrosion crackings (SCCs) that have recently been found at welded joints in nuclear reactor structures: the SCCs are confined in the weld metal and their aspect ratios are large. The assumption of rectangular shaped flaws simplifies modeling especially for those with very large aspect ratios. A way is presented to define the stress intensity factors at the deepest and surface points of the flaws using the J-integral method. Then stress intensity factor equations are developed for a plate subject to stresses that are expressed by polynomial functions of distance from the plate surface.
Authors: Yuuki Okada, Mizuho Shidawara, Hiroshi Okada, Masayuki Kamaya
Language: English
Subfield: Mechanics of Materials
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,510
OpenAlex ID: W4404839461