Abstract
Hybrid composite laminates consisting of layers of metal alloy bonded together with fiber-reinforced resin show great promise as a high-fatigue-resistant material. Fiber-reinforced metal laminates have been shown to exhibit improved toughness as well as higher resistance to fatigue. The hybrid titanium composite laminate (HTCL) incorporates the mechanical advantages of existing hybrid composite laminates such as ARALL and GLARE while extending its applications for use at elevated temperatures. Fabrication of hybrid laminates involves a consolidation process at appropriate applied pressures and temperatures. Two current methods of consolidation are the hot press process and the autoclave process. This study will compare the mechanical performance of HTCL specimens fabricated by the hot press process with those specimens fabricated by the autoclave. Two titanium metastable β-alloys, Ti-15-3 and Timetal-21S, will be investigated using a high-temperature resin reinforced by carbon fibers. Experimental testing will include composite laminate testing as well as constituent material testing. The mechanical response of autoclaved and hot-pressed HTCL laminates will be compared with predicted response based upon constituent property input utilizing a computer program called AGLPLY.
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