Abstract
SummaryThe variation of the stress intensity factor (SIF) for cracks growing in integrally machined stiffened skin panels have been studied in an isotropic material. The stringer-skin panel has been modelled using the Nastran finite element system with allowance for crack tip singularity by use of crack tip elements. To allow for variations in stringer and skin geometry, three stiffness ratios (stringer stiffness-skin stiffness) were investigated.The stress intensity factors have been converted into nondimensionalised values of stress intensity factor coefficients (K1/K0). A damage tolerant and residual strength analysis has been carried out using an in-house computer program. Results indicate very little difference for the different stiffness ratios examined.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
