Abstract
The standard shear lag analysis is known to give unreliable predictions for composite stiffness and other properties when applied to systems with a relatively small ratio between the elastic moduli of the two constituents, such as metal matrix composites. This has long been thought to be at least partly due to neglect of the transfer of normal stresses across the fibre end jaces. In this paper, a simple postulate is made that this stress will approximate to the mean between the peak value in the fibre and the average value in the matrix remote from the interface. On this basis, simple analytical expressions are derived for composite stiffness and applied stress at the onset of yielding. It is shown by comparison with the Eshelby predictions and experimental data that the analysis appears reliable over the complete range of fibre aspect ratios and volume fractions when applied to metal matrix composites.
Published Version
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.
