Three-dimensional stress intensity factor calibration for a stiffened cracked plate

• Type: Article in International Scientific Journal
• Date: 2009

Authors

P. M. G. P. Moreira (Author) FEUP; S. D. Pastrama (Author) FEUP; P. M. S. T. de Castro (Author) FEUP

Journal

Title: Engineering Fracture Mechanics

Pages: 2298-2308

ISSN: 0013-7944

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 12 Citations

ISI Web of Science

Scopus - 16 Citations

INSPEC

COMPENDEX

Scientific classification

FOS: Engineering and technology > Other engineering and technologies

CORDIS: Technological sciences > Engineering > Aerospace engineering

Other information

Authenticus ID: P-003-G22

DOI: 10.1016/j.engfracmech.2009.07.003

Abstract (EN): Three-dimensional finite element analyses are used in this paper to calibrate the stress intensity factor in a cracked stiffened plate subjected to remote uniform traction. An accurate numerical determination of the stress field and stress intensity variation through the thickness of a central cracked plate was first carried out in order to evaluate three-dimensional effects. A stiffened cracked plate was then analysed, taking into account the results and the conclusions obtained in the previous study. Such a structure was chosen due to the growing interest for large integral metallic structures for aircraft applications, following the continuous need for low cost and the emergence of new technologies. The J-Integral technique was used to calculate the values of the stress intensity factor along the plate thickness. The plane strain behaviour near the crack front and the variation of the opening stress are discussed.

Language: English

Type (Professor's evaluation): Scientific