ePrints@IIScePrints@IISc Home | About | Browse | Latest Additions | Advanced Search | Contact | Help

A progressive damage model for ceramic matrix mini-composites with thick interphases

Nagaraja, AM and Gururaja, S (2023) A progressive damage model for ceramic matrix mini-composites with thick interphases. In: Journal of the European Ceramic Society, 43 (10). pp. 4336-4348.

[img] PDF
jou_eur_cer_43-10_4336 - 4348_2023.pdf - Published Version
Restricted to Registered users only

Download (3MB) | Request a copy
Official URL: https://doi.org/10.1016/j.jeurceramsoc.2023.03.052


Toughness enhancement in ceramic matrix composites (CMCs) with brittle matrix and fiber phases is often accomplished by introducing a weak finite-thickness interphase between the fiber and matrix. The current work presents a progressive damage model to predict the tensile response of single tow CMCs (mini-composite) representative of a unidirectional composite at the microscale. Implementation of a 3-phase shear-lag model for a geometrically accurate representation of the underlying microstructure in CMCs with finite thickness interphase has been highlighted. A probabilistic progressive modeling approach has been adopted, accounting for multiple matrix cracking, interfacial debonding, and fiber failure in 3-phase mini-composites. The predicted tensile response of CMCs from the progressive damage modeling approach agrees with experimental results obtained for C/BN/SiC mini-composites validating the approach.

Item Type: Journal Article
Publication: Journal of the European Ceramic Society
Publisher: Elsevier Ltd
Additional Information: The copyright for this article belongs to Elsevier Ltd.
Keywords: Ceramic matrix composites; Fiber optic sensors, Ceramic matrix; Ceramic-matrix-composites; Damage modelling; Finite thickness; Interphase; Minicomposites; Modeling approach; Progressive damage; Shear lag; Tensile response, Brittle fracture
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Division of Mechanical Sciences > Centre for Product Design & Manufacturing
Date Deposited: 28 May 2023 06:04
Last Modified: 28 May 2023 06:04
URI: https://eprints.iisc.ac.in/id/eprint/81532

Actions (login required)

View Item View Item