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Fatigue Damage Accumulation Under Quasi-Random Loading of Composite Airframe Elements

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Mechanics of Composite Materials Aims and scope

To perform engineering estimations of the fatigue life of quasi-randomly loaded layered composites, with geometric concentrators, representing the longitudinal elements of composite wing of a transport airplane, a special rule of fatigue damage accumulation is suggested. The main propositions of the method for calculating the fatigue life of these elements by using this rule are formulated. The examples of estimations presented show a good agreement between analytical results and experimental data. A number of important conclusions about the effect of different levels of cyclic loading and “GAG” cycles of different flight types of the quasi-random “TWIST” program on the total fatigue life are made.

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Authors and Affiliations

  1. Joint-Stock Company “ Aerocomposite “, Moscow, 125284, Russia

    V. Strizhius

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  1. V. Strizhius
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Correspondence to V. Strizhius.

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Translated from Mekhanika Kompozitnykh Materialov, Vol. 52, No. 4, pp. 645-664, July-August, 2016.

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Strizhius, V. Fatigue Damage Accumulation Under Quasi-Random Loading of Composite Airframe Elements. Mech Compos Mater 52, 455–468 (2016). https://doi.org/10.1007/s11029-016-9597-9

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  • DOI: https://doi.org/10.1007/s11029-016-9597-9

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