Analysis and Modeling of Foreign Object Damage (FOD) in Ceramic Matrix Composites (CMCs)

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-10-C-0420
Agency Tracking Number: N10A-010-0559
Amount: $69,990.00
Phase: Phase I
Program: STTR
Solicitation Topic Code: N10A-T010
Solicitation Number: 2010.A
Timeline
Solicitation Year: 2010
Award Year: 2010
Award Start Date (Proposal Award Date): 2010-07-30
Award End Date (Contract End Date): 2011-02-28
Small Business Information
6659 Pearl Road, Suite #201, Cleveland, OH, 44130
DUNS: 123834959
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: Y
Principal Investigator
 Vinod Nagpal
 President
 (440) 845-7020
 vnagpal@nrengineering.com
Business Contact
 Vinod Nagpal
Title: President
Phone: (440) 845-7020
Email: vnagpal@nrengineering.com
Research Institution
 University of Arizon
 Erdogan Madenci
 1130 N. Mountain
Tucson, AZ, 85721
 (520) 621-6113
 Nonprofit college or university
Abstract
The Phase I deliverable will be a physic-based model which represents a CMC gas turbine component concomitantly at the material level and the structural level. This model will be probabilistically analyzed to account for the uncertainties in material properties and the uncertainties in the size and impact velocities of possible foreign objects (FOD). A ceramic material must display sufficient capability to withstand the degrading effects that arise from external events such as FOD impacts. In addition to withstanding impact events, the CMC must be able to resist crack propagation through the thickness resulting from FOD induced surface flaws. Further issues of concern: 1) the possibility of impacting materials scratching off the environmental barrier coating (EBC) coating and the subsequent consequences. 2) Given constant environmental attack of a CMC combustor liner due to the vaporization of salty air/water, the rate and sizes of EBC debris that loosen and then impact on turbine nozzle guide vanes. The delivered phase I tool will provide the means to cost effectively investigate and resolve these issues in a phase II effort. An application demonstration problem is specified, such as a rotor blade or a vane.

* Information listed above is at the time of submission. *

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