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Finite element simulation of mechanical properties of TaC-based core/graphite shell fibrous monolithic ceramics

  • Carbon Letters
  • Abbr : Carbon Lett.
  • 2024, 34(1), pp.291-301
  • DOI : 10.1007/s42823-023-00677-y
  • Publisher : Korean Carbon Society
  • Research Area : Natural Science > Natural Science General > Other Natural Sciences General
  • Received : September 8, 2023
  • Accepted : December 18, 2023
  • Published : February 1, 2024

Mollaabbaszadeh Vahideh 1 Kakroudi Mahdi Ghassemi 1 Shahedifar Vahideh 2 Vafa Nasser Pourmohammadie 1

1Department of Materials Science and Engineering, University of Tabriz
2이란 우르미아 소재 우르미아 대학교 공학부 재료공학과

Accredited

ABSTRACT

This work utilizes the commercial finite element software ABAQUS to investigate the factors influencing the mechanical behavior of tantalum carbide (TaC)-based/graphite fibrous monolithic ceramics (FMCs), such as core/shell volume ratio and fiber orientation. The good compliance between experimental and simulated results demonstrates the suitability of the finite element software ABAQUS for exploring mechanical properties in FMCs. According to the results, it was observed that the bending strength of TaC-based/graphite FMC decreased with the change in fiber orientation from 0° to 90°. The displacement amount in the core/shell volume ratio of 75/25 (C75S25) sample with a fiber orientation of 90° was maximum (with a value of 0.0524 mm), indicating that crack propagation occurred later. Therefore, the sample exhibited better resistance to failure. Generally, C75S25 specimens started to crack later than the core/shell volume ratio of 65/35 (C65S35) in both fiber orientations and released more energy during crack initiation. Additionally, when the 0°-fiber-oriented specimen failed, more energy was released than the [90°] sample with the same core/shell volume ratio.

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