Ceramic matrix composite (CMC) materials are targeted for high temperature application in aircraft and power turbines, because of their low density and high-temperature thermo-mechanical properties, compared to conventional nickel super alloys. New test methods are needed for the assessment of the effects of delamination cracks on the structural integrity and life of CMC components. The ASTM C28 Fracture Toughness (Crack Growth Resistance – CGR) Working Group has drafted a standard test method for the “Mode I Interlaminar Fracture Tougness (GIc – Crack Growth Resistance) of Fiber-Reinforced Ceramic Matrix Composites (CMC) by Wedge Loading of a Double Cantilever Beam at Ambient Temperatures” The wedge loading method was developed to avoid the problems of high temperature bonding of loading blocks and hinges. The ASTM test standard details the scope, use, and application of the test method, interferences, test equipment, specimen geometry and preparation, test procedures, data interpretation and calculation, and reporting requirements for the new CMC CGR test method.
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ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition
June 11–15, 2018
Oslo, Norway
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
978-0-7918-5112-8
PROCEEDINGS PAPER
Development of ASTM Test Standards for the Mode I Interlaminar Fracture Toughness (GIc--Crack Growth Resistance) of Ceramic Matrix Composites Available to Purchase
Frank Abdi,
Frank Abdi
AlphaSTAR Corporation, Long Beach, CA
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Jalees Ahmad,
Jalees Ahmad
AlphaSTAR Corporation, Long Beach, CA
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Saber DorMohammadi,
Saber DorMohammadi
AlphaSTAR Corporation, Long Beach, CA
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Cody Godines,
Cody Godines
AlphaSTAR Corporation, Long Beach, CA
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Stephen Gonczy,
Stephen Gonczy
Gateway Materials Technology, Mt. Prospect, IL
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Rabih Mansour,
Rabih Mansour
University of Akron, Akron, OH
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Gregory N. Morscher,
Gregory N. Morscher
University of Akron, Akron, OH
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Jun Shi,
Jun Shi
Rolls-Royce Corporation, Indianapolis, IN
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Greg Ojard
Greg Ojard
United Technologies Research Center, East Hartford, CT
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Frank Abdi
AlphaSTAR Corporation, Long Beach, CA
Jalees Ahmad
AlphaSTAR Corporation, Long Beach, CA
Saber DorMohammadi
AlphaSTAR Corporation, Long Beach, CA
Cody Godines
AlphaSTAR Corporation, Long Beach, CA
Stephen Gonczy
Gateway Materials Technology, Mt. Prospect, IL
Rabih Mansour
University of Akron, Akron, OH
Gregory N. Morscher
University of Akron, Akron, OH
Sung Choi
NAVAIR, Patuxent River, MD
Jun Shi
Rolls-Royce Corporation, Indianapolis, IN
Greg Ojard
United Technologies Research Center, East Hartford, CT
Paper No:
GT2018-77147, V006T02A014; 5 pages
Published Online:
August 30, 2018
Citation
Abdi, F, Ahmad, J, DorMohammadi, S, Godines, C, Gonczy, S, Mansour, R, Morscher, GN, Choi, S, Shi, J, & Ojard, G. "Development of ASTM Test Standards for the Mode I Interlaminar Fracture Toughness (GIc--Crack Growth Resistance) of Ceramic Matrix Composites." Proceedings of the ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition. Volume 6: Ceramics; Controls, Diagnostics, and Instrumentation; Education; Manufacturing Materials and Metallurgy. Oslo, Norway. June 11–15, 2018. V006T02A014. ASME. https://doi.org/10.1115/GT2018-77147
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