Interlaminar Mode I and Mode II Fracture Toughnesses in Ceramic Matrix Composites (CMCs)

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$79,967.00
Award Year:
2013
Program:
STTR
Phase:
Phase I
Contract:
N68335-13-C-0349
Agency Tracking Number:
N13A-008-0073
Solicitation Year:
2013
Solicitation Topic Code:
N13A-T008
Solicitation Number:
2013.A
Small Business Information
ALPHA STAR
5150 E. PACIFIC COAST HWY, SUITE # 650, LONG BEACH, CA, -
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
Y
Duns:
603371238
Principal Investigator:
FRANK ABDI
CTO
(562) 961-7827
FABDI@ALPHASTARCORP.COM
Business Contact:
KAY MATIN
PRESIDENT
(562) 961-7827
KMATIN@ALPHASTARCORP.COM
Research Institution:
UNIVERSITY OF AKRON
Gregory Morscher
302 EAST BUCHTEL AVENUE
AKRON, OH, 44304-
(330) 972-7741
Nonprofit college or university
Abstract
Ceramic Matrix Composite (CMC)'s are highly susceptible to interlaminar shear failure at elevated temperatures. Therefore, interlaminar properties, critical design limitation of CMC should be assessed accurately with appropriate test methods to ensure overall structural reliability/integrity of components in Naval gas turbine engines. AlphaSTAR proposes to develop rigorous, precise, and innovative test methods, and validated FEM based Fracture Toughnesses (FT) methodology, that guides tests, and assist customization of the standardized delamination growth CMC test methods. To address the need a comprehensive/systematic approach is proposed that involves the application of the latest advanced FT analysis/modeling and experimental techniques. The focus in Phase I is on:1) room/elevated temperatures modeling of technically sound and marketable testing technique for accurate characterization of delamination resistance such as crack tip micro-cracks; crack growth resistance (Mode I/II, mixed mode), as well as predicting high temperature FT when only tests are available at room temperature; and 2) to identify/implement modifications to ASTM test methods working with OEM design engineers. Following the initial redesign of test method and testing in Phase I, further development, data generation on one or more specific materials, and efforts for standardization of procedures will be pursued in Phase II.

* information listed above is at the time of submission.

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