Title: Formability of TUFF Composite Blanks
Authors: Shridhar Yarlagadda, Suresh Advani, Joseph Deitzel, Dirk Heider, Dan Molligan, David Roseman, Pavel Simacek, John Tierney,and John W. Gillespie, Jr.
Abstract: Under the Defense Advanced Research Projects Agency (DARPA) Tailorable Feedstock for Forming (TFF) program, the University of Delaware - Center for Composite Materials (UD-CCM) led-team proposed to develop a manufacturing process and pilot facility to produce novel discontinuous carbon fiber composite feedstock for forming, with the potential to revolutionize the use of composite materials in military platforms, as a cost-effective replacement for small complex geometry metal parts (>2 sq. m.). The TuFF (Tailored Universal Feedstock for Forming) feedstock consists of a highly aligned discontinuous carbon fiber preform in thin-ply format, which can be converted to dry preforms for thermoset infusion, thermoset prepreg blanks or thermoplastic blanks for composite forming. Forming demonstrations have shown metal-like formability under vacuum forming conditions for complex geometries. In-plane as well as bi-axial stretch >40% has been demonstrated in both longitudinal (along fiber direction) and transverse (90 degrees to fiber direction) deformation modes for unidirectional and cross-ply composite blanks.
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Conference: SAMPE 2019 - Charlotte, NC
Publication Date: 2019/05/20
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