Scale levels for fatigue fracture mechanisms of in-service crack growth in longerons of helicopter rotor blades
Source abstract
Abstract
Cases of in-service fatigue crack growth in aluminium longerons of helicopter Mi-8 rotor blades were reviewed. Fatigue fracture surface patterns for micro- and meso-scale levels of crack growth mechanisms for in-service fatigued longerons are discussed. Meso-beach-marks were used to estimate the fatigue crack growth period in one of the damaged longerons with the least crack size. Results of these estimations showed the effectiveness of the special device in in-service operation, which was used in longerons for in-service fatigue crack detection.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Fatigue and fracture mechanics · Elasticity and Material Modeling · High-Velocity Impact and Material Behavior
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References (4)
Show source-provided references
1. Shaniavski, A.A. and Koleabin, K.V. (1986) Defects of longerons influence on in-service the fatigue fracture nucleation in rotor-blades. Science Work of Research Inst. Civil Aviation 250, 75-81 (in Russian)
2. Shaniavski, A.A. (1996) Quantitative fractographic analyses of fatigue crack growth in longerons of in-service helicopter rotor-blades. Fatigue Fract. Engng Mater. Struct. v.19(9), 1129-1141.10.1111/j.1460-2695.1996.tb01047.x ↗
3. Shaniavski, A.A. and Toushentsov, A.L. (1999). Science works of Society of Aircraft Incident Investigators v.11, 110-128.
4. Shaniavski, A.A. (1996) The effect of pressure overload on fatigue crack growth in pressure vessels. Fatigue Fract. Engng Mater. Struct. (19)1, 1-13.10.1111/j.1460-2695.1996.tb00927.x ↗