Nondestructive evaluation of ceramic matrix composites coupled with finite element analyses

Ali Abdul-Aziz; George Y. Baaklini; Ramakrishna Bhatt

doi:10.1117/12.470733

18 June 2002 Nondestructive evaluation of ceramic matrix composites coupled with finite element analyses

Ali Abdul-Aziz, George Y. Baaklini, Ramakrishna Bhatt

Proceedings Volume 4704, Nondestructive Evaluation and Health Monitoring of Aerospace Materials and Civil Infrastructures; (2002) https://doi.org/10.1117/12.470733
Event: NDE For Health Monitoring and Diagnostics, 2002, San Diego, California, United States

Abstract

Ceramic matrix composites (CMC) are engineered materials filled with manufacturing anomalies, such as voids, delamination, or fiber cracking. In this paper a non- destructive evaluation (NDE) of a CMC tensile specimen is coupled with a finite element analysis to locate the failure location prior to the actual testing. The tensile CMC specimen is scanned with computed tomography (CT) along various planes. The majority of the observed anomalies are porosities in the matrix. The CT images are then used to reconstruct a 3-D volume of the specimen's gage section using velocity² (an image processing software). Subsequently, a three dimensional finite element analysis (FEA) is carried out to include the scanned porosities. The stress variations along the scanned CT planes are determined, comparison of the FEA results with those extracted via NDS, and the test data are reported.

Citation Download Citation

Ali Abdul-Aziz, George Y. Baaklini, and Ramakrishna Bhatt "Nondestructive evaluation of ceramic matrix composites coupled with finite element analyses", Proc. SPIE 4704, Nondestructive Evaluation and Health Monitoring of Aerospace Materials and Civil Infrastructures, (18 June 2002); https://doi.org/10.1117/12.470733

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available