Article Finite Element Analysis of R‐Curve Behavior in Ceramics Using the Damage Model Based on the Cohesive‐Zone Relationship

Mostafizur Rahman ; Taiyo Maeda ; Toshio Osada SAMURAI ORCID (National Institute for Materials Science) ; Shingo Ozaki (National Institute for Materials Science)

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Mostafizur Rahman, Taiyo Maeda, Toshio Osada, Shingo Ozaki. Finite Element Analysis of R‐Curve Behavior in Ceramics Using the Damage Model Based on the Cohesive‐Zone Relationship. International Journal of Ceramic Engineering and Science. 2025, 7 (5), . https://doi.org/10.1002/ces2.70025

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(abstract)

The evaluation of the R-curve behavior of ceramics, which is characterized by an increase in crack resistance with crack propagation, is crucial for advancing their implementation in engineering applications that require high reliability. In this study, we investigated the applicability of a finite element analysis (FEA) approach that implements a continuum damage model embedded with a cohesive-zone relationship to predict crack occurrence and the subsequent increase in crack resistance (toughness) of ceramics. Specifically, by employing a compliance-based method, the R-curve behavior was systematically examined under a bending load to assess the impacts of fracture stress and toughness on diverse chevron-notched specimens.

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Keyword: Ceramics, Damage model, Finite element analysis, R-curve behavior, Toughness

Date published: 2025-09-17

Publisher: Wiley

Journal:

  • International Journal of Ceramic Engineering and Science (ISSN: 25783270) vol. 7 issue. 5

Funding:

  • New Energy and Industrial Technology Development Organization JPNP22005
  • Japan Society for the Promotion of Science 22H01357

Manuscript type: Publisher's version (Version of record)

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First published URL: https://doi.org/10.1002/ces2.70025

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Updated at: 2025-09-26 16:30:21 +0900

Published on MDR: 2025-09-26 16:19:12 +0900

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