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Applied Composite Materials
Erschienen in: Applied Composite Materials 3/2018

19.08.2017

A Theoretical Model for Predicting Fracture Strength and Critical Flaw Size of the ZrB2-ZrC Composites at High Temperatures

verfasst von: Ruzhuan Wang, Xiaobo Li, Jing Wang, Bi Jia, Weiguo Li

Erschienen in: Applied Composite Materials | Ausgabe 3/2018

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Abstract

This work shows a new rational theoretical model for quantitatively predicting fracture strength and critical flaw size of the ZrB2-ZrC composites at different temperatures, which is based on a new proposed temperature dependent fracture surface energy model and the Griffith criterion. The fracture model takes into account the combined effects of temperature and damage terms (surface flaws and internal flaws) with no any fitting parameters. The predictions of fracture strength and critical flaw size of the ZrB2-ZrC composites at high temperatures agree well with experimental data. Then using the theoretical method, the improvement and design of materials are proposed. The proposed model can be used to predict the fracture strength, find the critical flaw and study the effects of microstructures on the fracture mechanism of the ZrB2-ZrC composites at high temperatures, which thus could become a potential convenient, practical and economical technical means for predicting fracture properties and material design.
Vorheriger Artikel A Unit-Cell Model for Predicting the Elastic Constants of 3D Four Directional Cylindrical Braided Composite Shafts
Nächster Artikel Identification and Modelling of the In-Plane Reinforcement Orientation Variations in a CFRP Laminate Produced by Manual Lay-Up

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Metadaten
Titel
A Theoretical Model for Predicting Fracture Strength and Critical Flaw Size of the ZrB2-ZrC Composites at High Temperatures
verfasst von
Ruzhuan Wang
Xiaobo Li
Jing Wang
Bi Jia
Weiguo Li
Publikationsdatum
19.08.2017
Verlag
Springer Netherlands
Erschienen in
Applied Composite Materials / Ausgabe 3/2018
Print ISSN: 0929-189X
Elektronische ISSN: 1573-4897
DOI
https://doi.org/10.1007/s10443-017-9641-5

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