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  4. Fatigue behavior and damage analysis of PIP C/SiC composite
 
Zitierlink DOI
10.26092/elib/3445
Verlagslink DOI
10.1016/j.jeurceramsoc.2022.06.053

Fatigue behavior and damage analysis of PIP C/SiC composite

Veröffentlichungsdatum
2022-10-01
Autoren
Saint Martin Almeida, Renato  
Chen, Si’an  
Besser, Benjamin  
Tushtev, Kamen  
Li, Yang  
Rezwan, Kurosch  
Zusammenfassung
In this work, we study the fatigue behavior of a C/SiC composite produced by several cycles of polymer infil- tration and pyrolysis (PIP). Fatigue tests were performed with maximum stresses corresponding to 60–90% of the tensile strength of the composite. During the fatigue tests, acoustic emission (AE) monitoring was performed and the measured AE energy was utilized to quantify the damage and distinguish possible damage mechanisms. Most of the fatigue damage in the form of matrix cracking, interface damage and fiber breakage occurs in the first cycle. As loading cycles proceeded, damage in form of matrix crack re-opening and interfacial friction constantly accumulates. Nevertheless, all samples survived the run-out of 1,000,000 cycles. After the fatigue tests, an in- crease of the tensile strength is observed. This phenomenon is associated with the relief of process-induced in- ternal thermal stresses and the weakening of the fiber-matrix interface. In general, the studied material shows very high relative fatigue limit of 90% of its tensile strength
Schlagwörter
Ceramic matrix composites

; 

Fatigue

; 

Damage analysis

; 

Acoustics emission

; 

Residual strength
Verlag
Elsevier Science
Institution
Universität Bremen  
Fachbereich
Fachbereich 04: Produktionstechnik, Maschinenbau & Verfahrenstechnik (FB 04)  
Institute
Fachgebiet 17: Keramische Werkstoffe und Bauteile  
Dokumenttyp
Artikel/Aufsatz
Zeitschrift/Sammelwerk
Journal of the European Ceramic Society  
Band
42
Heft
13
Startseite
5391
Endseite
5398
Zweitveröffentlichung
Ja
Dokumentversion
Postprint
Lizenz
https://creativecommons.org/licenses/by-nc-nd/4.0/
Sprache
Englisch
Dateien
Lade...
Vorschaubild
Name

Almeida et al_Fatigue behavior and damage analysis_2022_accepted-version.pdf

Size

2.6 MB

Format

Adobe PDF

Checksum

(MD5):6dd2931981560b42c1b7f24fbf91d8b1

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