Measurement of Damping of Composite Materials for Turbomachinery Applications (MSFC Center Director's Discretionary Fund Final Report, Project No. 94-05)

NASA/TM-207685, Harris, D.L., Measurement of Damping of Composite Materials for Turbomachinery Applications (MSFC Center Director's Discretionary Fund Final Report, Project No. 94-05), Structures and Dynamic Laboratory, Science and Engineering Directorate, NASA Marshall Space Flight Center, AL 35812, March 1998, pp. 16, Format(s): PDF 264k

View PDF - Requires Adobe Acrobat Reader or other PDF viewer.

The scientific community has felt that ceramic matrix composite (CMC) materials possess more material damping than the superalloys used in the production of rocket engine turbomachinery turbine-end components. The purpose of this NASA-MFSC study is to quantify the damping in CMC's as compared to a typical super-alloy, Inconel 718. It was observed through testing of beam coupons and disk specimens that the CMC's do indeed possess more material damping than the baselined alloy Inconel 718.

Keywords:	blisk, composite turbine, damping
Subjects:	Chemistry and Materials: Composite Materials: Composite Materials
ID Code:	426
Deposited On:	16 July 2002