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Parametric Analysis of Various Test Configurations for Measuring the…

Award Information

Department of Defense
Award ID:
Program Year/Program:
2013 / STTR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Aurora Flight Sciences Corporation
9950 Wakeman Drive Manassas, VA -
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2013
Title: Parametric Analysis of Various Test Configurations for Measuring the Interlaminar Fracture Toughness of CMCs using LayerSlayer and Abaqus
Agency / Branch: DOD / NAVY
Contract: N68335-13-C-0347
Award Amount: $79,985.00


The low weight, excellent durability and heat resistance of ceramic matrix composites (CMCs) make them attractive materials for use in aircraft engine hot sections, where improved overall engine efficiency can be realized. Nevertheless, the interlaminar properties of CMCs must be well understood before CMCs can realistically replace metallic superalloys in engine hot sections, and no standardized test methods for determining interlaminar fracture toughness of CMCs currently exist. During this Phase I effort, Aurora Flight Sciences (AFS) will work closely with experts in CMC fabrication, testing, design, and analysis at the University of California, Santa Barbara (UCSB) and the United Technologies Research Center (UTRC) to develop analytical concept models on interlaminar fracture toughness test methods. A finite element code developed at UCSB, LayerSlayer, will be used in conjunction with the commercially available finite element analysis software, Abaqus, to ascertain stresses, energy release rates and mode mixities in CMCs while conducting parametric studies of various test configurations and geometries feasible for measuring Mode I and Mode II interlaminar fracture toughnesses. Preliminary experiments on CMC specimens will be conducted to evaluate the feasibility of the concept models developed, in preparation for comprehensive testing of several CMC coupons during Phase II.

Principal Investigator:

Konstantine Fetfatsidis
Composite Structures Rese
(617) 229-6818

Business Contact:

Scott Hart
Financial Analyst
(617) 500-4892
Small Business Information at Submission:

Aurora Flight Sciences Corporation
9950 Wakeman Drive Manassas, VA -

EIN/Tax ID: 541502935
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
Univ of California, Santa Barbara
UC Santa Barbara
552 University Road
Santa Barbara, CA 93106-0002
Contact: Frank Zok
Contact Phone: (805) 893-8699