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the claim

Small imperfections in aircraft structures can grow into fatigue cracks over time during operation.

the verdict
SUPPORTED
the evidence backs this
Recorded sources
5 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that small imperfections in aircraft structures can grow into fatigue cracks over time during operation?

Yes. Small structural imperfections and initial flaws in aircraft materials act as stress concentrators that progressively propagate into fatigue cracks under operational cyclic loading.

Verdict: SUPPORTED · 5 sources for, 0 against · Last checked

The analysis

The retrieved literature thoroughly documents the phenomenon of fatigue crack growth originating from small initial flaws, defects, or stress concentrations in aircraft and metallic structures under cyclic loading conditions. Multiple papers validate modeling approaches and failure analyses concerning how initial imperfections extend over time during operation.

Evidence for · 5
A Crack-Closure Model for Predicting Fatigue Crack Growth under Aircraft Spectrum Loading
1981
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Newman, J. (1981). A Crack-Closure Model for Predicting Fatigue Crack Growth under Aircraft Spectrum Loading. doi.org. https://doi.org/10.1520/stp28334s

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More for · 4
The Influence of Metallurgical Structure on the Mechanisms of Fatigue Crack Propagation
1967
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Laird, C. (1967). The Influence of Metallurgical Structure on the Mechanisms of Fatigue Crack Propagation. doi.org. https://doi.org/10.1520/stp47230s

Fatigue Life Prediction Based on Crack Closure and Equivalent Initial Flaw Size
2015
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Wang, Q., Zhang, W., & Jiang, S. (2015). Fatigue Life Prediction Based on Crack Closure and Equivalent Initial Flaw Size. doi.org. https://doi.org/10.3390/ma8105367

Effect of Transport Aircraft Wing Loads Spectrum Variation on Crack Growth
1980
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Abelkis, P. (1980). Effect of Transport Aircraft Wing Loads Spectrum Variation on Crack Growth. doi.org. https://doi.org/10.1520/stp27487s

High-accuracy fatigue life prediction and early fracture warning for ferromagnetic metals via spin correlation amplification.
2026
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B, Z., L, Z., X, W., J, Y., X, C., H, X., Z, Z., X, L., F, Z., J, P., H, J., & G, Z. (2026). High-accuracy fatigue life prediction and early fracture warning for ferromagnetic metals via spin correlation amplification.. doi.org. https://doi.org/10.1038/s41467-026-70290-w

What does the evidence say?

The retrieved literature thoroughly documents the phenomenon of fatigue crack growth originating from small initial flaws, defects, or stress concentrations in aircraft and metallic structures under cyclic loading conditions. Multiple papers validate modeling approaches and failure analyses concerning how initial imperfections extend over time during operation.

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