A direct complex stress function approach for modelling stiffened panels containing multiple site damage

Autor:	R.A. Collins, D.J. Cartwright, P.J. Gregson
Rok vydání:	1999
Předmět:	Engineering business.industry Applied Mathematics Mechanical Engineering Compatibility (mechanics) General Materials Science Multiple site Structural engineering Condensed Matter Physics business System of linear equations Stress intensity factor
Zdroj:	Theoretical and Applied Fracture Mechanics. 31:105-117
ISSN:	0167-8442
Popis:	The analysis of stiffened panel structures containing multiple site damage (MSD) is addressed through the complex variable method, in association with the requirement for displacement compatibility. The method is extended by replacing the usual single crack stress and displacement functions by those for a series of arbitrary straight collinear cracks which are used to model exactly the main and secondary crack damage in the sheet. It is shown that the problem can be reduced to a system of linear equations for the unknown forces at the attachment points between the sheet and the stiffener from which the stress intensity factor of the collinear cracks can be determined. The stress intensity factor and the attachment force distribution are determined for several configurations and compared with those from numerically based approaches.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e0bd400fd9980c6184ac65cf6712720d https://doi.org/10.1016/s0167-8442(99)00005-1 Zobrazit plný text záznamu Full Text from ScienceDirect