Probabilistic Analysis of Fatigue Behavior of Single Lap Riveted Joints
Abstract
:1. Introduction
2. Materials and Methods
3. Fatigue Tests Results and Discussion
3.1. Fatigue Life
3.2. Critical Crack Size and Location
4. Statistical Analysis: Anderson–Darling Test
5. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Material | Cu | Mg | Mn | Fe | Cr | Si | Ti | Zn | Al |
---|---|---|---|---|---|---|---|---|---|
Al 2024-T3 | 3.8–4.9 | 1.2–1.8 | 0.3–0.9 | ≤0.5 | ≤0.1 | ≤0.5 | ≤0.15 | ≤0.25 | Balance |
Material | σs [MPa] (S) | σr [MPa] (S) | E [MPa] (S) | Z [%] (S) |
---|---|---|---|---|
Al 2024-T3 | 296 (5.35) | 426 (4.42) | 71000 (2121) | 13 (1.5) |
Load Level [MPa] | Average Value of Fatigue Life [103 cycles] | Standard Deviation for Fatigue Life [103 cycles] |
---|---|---|
90 | 693.2 | 205.1024 |
120 | 231 | 34.1735 |
160 | 70.9 | 16.9139 |
Load Level [MPa] | Average Value of Crack Length [mm] | Standard Deviation for Crack Length [mm] |
---|---|---|
90 | 15.1 | 0.9085 |
120 | 13.903 | 0.5915 |
160 | 12.2564 | 0.448 |
Distribution Types | |||||||
---|---|---|---|---|---|---|---|
Normal | Log-Normal | Extreme Value | Weibull | ||||
A2crit | α = 0.05 * | 0.752 | 0.752 | n = 100 * | n = 50 | 0.757 | |
0.279 | 0.277 | ||||||
A2 Fatigue life dataset | σmax [MPa] | 90 | 3.2330 | 1.0595 | 7.2989 | 3.7891 | |
120 | 0.4807 | 0.4265 | 2.3251 | 1.3094 | |||
160 | 0.3848 | 0.4388 | 1.4389 | 0.5885 | |||
A2 Crack size dataset | σmax [MPa] | 90 | 1.0437 | 1.2840 | 0.3496 | 0.3910 | |
120 | 0.6990 | 0.7263 | 0.7594 | 0.7441 | |||
160 | 0.2253 | 0.2172 | 0.7299 | 0.6366 | |||
A2 < A2crit | * α = significance level; n = sample size |
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Armentani, E.; Greco, A.; De Luca, A.; Sepe, R. Probabilistic Analysis of Fatigue Behavior of Single Lap Riveted Joints. Appl. Sci. 2020, 10, 3379. https://doi.org/10.3390/app10103379
Armentani E, Greco A, De Luca A, Sepe R. Probabilistic Analysis of Fatigue Behavior of Single Lap Riveted Joints. Applied Sciences. 2020; 10(10):3379. https://doi.org/10.3390/app10103379
Chicago/Turabian StyleArmentani, Enrico, Alessandro Greco, Alessandro De Luca, and Raffaele Sepe. 2020. "Probabilistic Analysis of Fatigue Behavior of Single Lap Riveted Joints" Applied Sciences 10, no. 10: 3379. https://doi.org/10.3390/app10103379