Residual Strength Analysis of C/SiC Ceramic Matrix Composite Panels Subjected to Combined Thermal-Acoustic Loadings
Abstract
:1. Introduction
2. Random Fatigue Analysis
2.1. Stress Analysis
2.2. Cycle Counting Methods
2.3. Constant Life Diagrams
2.4. Residual Strength Degradation
2.5. Failure Criterion
3. Thermal-Acoustic Nonlinear Response Analysis
3.1. Loading
3.2. Thermal-Acoustic Response Results
4. Experimental Procedure
4.1. Material and Specimen
4.2. Structure Experiments
5. Result and Discussion
6. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
Nomenclature
TPS | thermal protection system |
INT | interaction model |
TAFA | thermal acoustic fatigue apparatus |
probability density function | |
RMS | root mean square |
Su | initial static strength |
Sr | residual strength |
σp | maximum applied cyclic stress |
n | applied number of cycles |
N | corresponding fatigue life |
α and β | parameters of the interaction model |
σp,i | maximum applied stress of ith cycle |
ni | applied number of cycles of ith cycle |
N | corresponding fatigue life of ith cycle |
Sr(i) | residual strength after ith cycle |
neqv,i−1 | number of equivalent cycle |
NPT | number of simulated points |
Δt | time step |
f1 | fundamental frequency |
T | temperature |
ΔT | temperature increment |
ΔTC | critical bucking temperature increment |
B and a | parameter of power law modal |
b | b = logB |
R | stress ratio |
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Material Property | T/°C | |
---|---|---|
27 | 600 | |
E11/GPa | 120 | 94.008 |
E22/GPa | 120 | 94.008 |
E33/GPa | 60 | 47.004 |
G12/GPa | 44.4 | 34.817 |
G13/GPa | 24 | 18.815 |
G23/GPa | 24 | 18.815 |
α11/(10−6/°C) | 0 | 3.72 |
α22/(10−6/°C) | 0 | 3.72 |
α33/(10−6/°C) | 0 | 4.84 |
ΔT (°C) | Sound Press Level (dB) | ||
---|---|---|---|
150 | 155 | 165 | |
0 | N | N | N |
103 | N | N | N |
573 | N | I | P |
Suts/MPa | Sucs/MPa | R | a | b | α | β |
---|---|---|---|---|---|---|
283.74 | 361.80 | 0.1 | −2.60 | 8.88 | 11.72 | 6.20 |
10 | −18.45 | 49.10 | 2.79 | 1.20 |
Tensile Residual/MPa | |||||
---|---|---|---|---|---|
Series Number | Experimental Result | Mean Value | Standard Deviation | Simulation Result | Error/% |
E02 | 274.84 | 248.65 | 17.62 | 231.74 | 6.80 |
E11 | 236.59 | ||||
E13 | 241.62 | ||||
E22 | 241.55 | ||||
E03 | 257.34 | 260.50 | 13.13 | 243.85 | 6.39 |
E10 | 266.45 | ||||
E14 | 243.80 | ||||
E21 | 274.40 | ||||
E04 | 297.24 | 275.67 | 17.76 | 251.09 | 8.92 |
E09 | 265.18 | ||||
E15 | 257.69 | ||||
E20 | 282.55 | ||||
E05 | 254.21 | 265.98 | 23.81 | 243.08 | 8.61 |
E08 | 280.04 | ||||
E16 | 238.75 | ||||
E19 | 290.93 | ||||
E06 | 219.01 | 233.77 | 26.84 | 217.64 | 6.90 |
E07 | 230.47 | ||||
E17 | 213.06 | ||||
E18 | 272.54 | ||||
E23 | 220.10 | 220.10 | 210.93 | 4.17 |
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Zhang, Y.; Sun, Y.; Liu, Y. Residual Strength Analysis of C/SiC Ceramic Matrix Composite Panels Subjected to Combined Thermal-Acoustic Loadings. Appl. Sci. 2022, 12, 5996. https://doi.org/10.3390/app12125996
Zhang Y, Sun Y, Liu Y. Residual Strength Analysis of C/SiC Ceramic Matrix Composite Panels Subjected to Combined Thermal-Acoustic Loadings. Applied Sciences. 2022; 12(12):5996. https://doi.org/10.3390/app12125996
Chicago/Turabian StyleZhang, Yuli, Yi Sun, and Yizhi Liu. 2022. "Residual Strength Analysis of C/SiC Ceramic Matrix Composite Panels Subjected to Combined Thermal-Acoustic Loadings" Applied Sciences 12, no. 12: 5996. https://doi.org/10.3390/app12125996