Damage Monitoring of Unidirectional C/SiC Ceramic-Matrix Composite under Cyclic Fatigue Loading using A Hysteresis Loss Energy-Based Damage Parameter at Room and Elevated Temperatures

2015 ◽  
Vol 23 (3) ◽  
pp. 357-374 ◽  
Author(s):  
Li Longbiao
Keyword(s):  
Matrix Composite ◽  
Elevated Temperatures ◽  
Ceramic Matrix Composite ◽  
Ceramic Matrix ◽  
Fatigue Loading ◽  
Cyclic Fatigue ◽  
Damage Parameter ◽  
Hysteresis Loss ◽  
Sic Ceramic ◽  
Damage Monitoring

Life Limiting Aspects of an MI SiC/SiC Ceramic Matrix Composite (CMC) in Interlaminar Shear At Elevated Temperature

2021 ◽  
Author(s):  
Sean Kane ◽  
Ashlynn Stanley ◽  
Luis Sanchez ◽  
D. Calvin Faucett ◽  
Sung R Choi
Keyword(s):  
Matrix Composite ◽  
Slow Crack Growth ◽  
Ceramic Matrix Composite ◽  
Ceramic Matrix ◽  
Fatigue Loading ◽  
Cyclic Fatigue ◽  
Shear Loading ◽  
Static Fatigue ◽  
Sic Ceramic ◽  
Interlaminar Shear

Abstract Life limiting behavior of an MI SiC/SiC ceramic matrix composite (CMC) was determined under interlaminar shear at 1316oC in air using double-notch-shear (DNS) test specimens. The three different shear loading configurations of dynamic fatigue, static fatigue, and cyclic fatigue were employed to assess their individual respective lives. The MI SiC/SiC CMC exhibited low susceptibility to fatigue ('slow crack growth') regardless of loading configuration. A Life prediction model for interlaminar shear in cyclic fatigue was developed based on the fracture mechanics framework. The newly developed cyclic fatigue model as well as the previously developed dynamic and static fatigue models were all in good agreement with the experimental data, indicating that the governing failure mechanism under interlaminar shear was consistent, independent of fatigue loading configuration.

Life Limiting Aspects of an MI SiC/SiC Ceramic Matrix Composite (CMC) in Interlaminar Shear at Elevated Temperature

2021 ◽  
Author(s):  
S. Kane ◽  
A. Stanley ◽  
L. Sanchez ◽  
D. C. Faucett ◽  
S. R. Choi
Keyword(s):  
Matrix Composite ◽  
Slow Crack Growth ◽  
Ceramic Matrix Composite ◽  
Ceramic Matrix ◽  
Fatigue Loading ◽  
Cyclic Fatigue ◽  
Shear Loading ◽  
Static Fatigue ◽  
Sic Ceramic ◽  
Interlaminar Shear

Abstract Life limiting behavior of an MI SiC/SiC ceramic matrix composite (CMC) was determined under interlaminar shear at 1316°C in air using double-notch-shear (DNS) test specimens. The three different shear loading configurations of dynamic fatigue, static fatigue, and cyclic fatigue were employed to assess their individual respective lives. The MI SiC/SiC CMC exhibited low susceptibility to fatigue (‘slow crack growth’) regardless of loading configuration. A Life prediction model for interlaminar shear in cyclic fatigue was developed based on the fracture mechanics framework. The newly developed cyclic fatigue model as well as the previously developed dynamic and static fatigue models were all in good agreement with the experimental data, indicating that the governing failure mechanism under interlaminar shear was consistent, independent of fatigue loading configuration.

Sign in / Sign up

Export Citation Format

Share Document