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Effect of stress ratio on the fatigue strength of organic plastics

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Mechanics of Composite Materials Aims and scope

Conclusions

Experimental fatigue curves of a unidirectional organic plastic are obtained for a number of asymmetry factors and diagrams of the limiting cycle stresses are constructed for a load in the direction of the fibers and across the fibers, and for in-plane shear of a layer. The simplest methods of approximating the calculated diagrams are tested. It is shown that the method of layer-by-layer analysis of fatigue failure makes it possible to construct limiting-stress diagrams for a laminar oblique-ply composite with an accuracy acceptable for engineering calculations, proceeding from the same analysis as for an individual layer.

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Authors and Affiliations

  1. Central Scientific-Research Institute of Special Machine Building, Moscow Oblast, USSR

    V. A. Limonov & Ya. A. Anderson

  2. Institute of Polymer Mechanics, Latvian Academy of Sciences, Riga

    V. A. Limonov & Ya. A. Anderson

Authors
  1. V. A. Limonov
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  2. Ya. A. Anderson
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Translated from Mekhanika Kompozitnykh Materialov, No. 3, pp. 421–429, May–June, 1991.

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Limonov, V.A., Anderson, Y.A. Effect of stress ratio on the fatigue strength of organic plastics. Mech Compos Mater 27, 276–283 (1991). https://doi.org/10.1007/BF00616875

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  • DOI: https://doi.org/10.1007/BF00616875

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