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Crush Response of Prepreg Platelet Molding Compound Tubes

REBECCA CUTTING, VARNA SHARMA, JOHNATHAN GOODSELL

Abstract


Crush tubes made of prepreg platelet molding compound (PPMC) were manufactured with a bladder molding process. These discontinuous fiber tubes were crushed at quasi-static speeds, and the failure morphology, load-displacement curves, and specific energy absorption values were recorded. PPMC tubes displayed a failure morphology similar to that of a splaying failure mode seen in continuous fiber tubes, but the splaying segments were significantly larger in this case. The load-displacement curves were similar in shape to those seen in the continuous fiber fragmentation mode. The average specific energy absorption for this material system was determined to be 42.3 kJ/kg. A 2D orientation analysis application was used to determine platelet orientation distribution on the surfaces of the PPMC sheets. No significant correlation was found between platelet orientation distribution and specific energy absorption.


DOI
10.12783/asc33/26074

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