Title page for ETD etd-08252008-161903
|Type of Document
||Adams, Daniel O'Hare
||Effects of layer waviness on compression-loaded thermoplastic composite laminates
|Hyer, Michael W.
|Johnson, Eric R.
|Loos, Alfred C.
|Reifsnider, Kenneth L.
|Date of Defense
The effects of layer waviness on the compression response of T3001P1700
carbon/polysulfone composite laminates were investigated both experimentally and
analytically. A three-step procedure was used to fabricate isolated layer waves into the
central 0Â° layer of [902,/02/902/02/902/02w]S laminates. The influence of various layer
wave geometries on the static compression strength and compression fatigue life were
determined experimentally. Moire interferometry was used to investigate the disturbance
in the displacement fields and the modes of deformation associated with layer waviness
under compression loading. The state of stress in the vicinity of the layer waves and the
influence of the layer waves on static compression strength were predicted using a planestrain
finite element analysis which included material nonlinearity.
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