Buckling and postbuckling of a delaminated composite beam in bending
Kinawy, M., Butler, R. and Hunt, G. W., 2011. Buckling and postbuckling of a delaminated composite beam in bending. AIAA Journal, 49 (3), pp. 670-672.
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A study was conducted to model the thin delaminated layer using the Elastica theory and investigate the postbuckling behavior for a delaminated beam under compression. Static tests were performed to understand the buckling and propagation behavior of 16-ply, laminated beams with a through-width delamination created by a polytetrafluoroethylene (PTFE) layer of 0.02 mm thickness and 40 mm length placed at the mid length of the beam between the second and third ply. A unidirectional plate made of M21-T800 carbon material was laid up and cured using an autoclave. An INSTRON-1332 servo-hydraulic machine with 10 kN load cell was used for loading application. The strain gauges and loading channel from the servo-hydraulic machine were connected to a SPIDER-8 data acquisition system which was attached to a PC. The specimens were also loaded through a four point bending fixture under displacement control.
|Creators||Kinawy, M., Butler, R. and Hunt, G. W.|
|Departments||Faculty of Engineering & Design > Mechanical Engineering|
|Research Centres||Aerospace Engineering Research Centre|
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