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Structural theory of the strength of reinforced plastics

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Conclusions

In the present study, we developed structural criteria that make it possible to predict at the component level (polymer binder, fibers) and interface level the long-term strength of laminated reinforced plastics in a plane stress state. The proposed relations make it possible to evaluate the effect of the rheological properties of the components, their volume fractions, and the geometry of the structure of the laminated packet on the long-term strength of reinforced plastics. The relations also permit resolution of the inverse problem: efficiently design the structure of such materials for specific loading conditions.

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Literature cited

  1. 1.

    A. M. Skudra and F. Ya. Bulavs, Structural Theory of Reinforced Plastics [in Russian], Riga (1978).

  2. 2.

    A. M. Skudra and F. Ya. Bulavs, Strength of Reinforced Plastics [in Russian], Moscow (1982).

  3. 3.

    M. R. Gurvich, “Long-term strength of a polymer binder in a variable complex stress state,” in: Mechanics of Composite Materials [in Russian], Riga, (1982), pp. 25–32.

  4. 4.

    N. N. Peschanskaya and V. A. Stepanov, “Life of polymers in tension and torsion,” Mekh. Polim., No. 6, 1003–1006 (1974).

  5. 5.

    V. A. Stepanov, “Deformation and fracture of polymers,” Mekh. Polim., No. 1, 95–106 (1975).

  6. 6.

    O. Ya. Korf and A. M. Skudra, “Long-term strength of isotropic polymers in a plane stress state,” Mekh. Polim., No. 6, 837–844 (1966).

  7. 7.

    A. M. Skudra, F. Ya. Bulvas, and K. A. Totsens, Creep and Static Fatigue of Reinforced Plastics [in Russian], Riga (1971).

  8. 8.

    M. R. Gurvich, “Long-term strength of unidirectionally-reinforced plastics with fracture of the interface between the fibers and the polymer binder,” in: Mechanics of Reinforced Plastics [in Russian], Riga (1983), pp. 32–43.

  9. 9.

    F. Ya. Bulas and M. R. Gurvich, “Disturbance of the continuity of laminated reinforced plastics in a long-term plane stress state,” in: Mechanics of Composite Materials [in Russian], Riga (1984), pp. 11–20.

  10. 10.

    F. Ya. Bulavs, M. R. Gurvich, and I. G. Radin'sh, “Long-term strength of unidirectionally-reinforced plastics subjected to combination tension and shear loading,” in: Mechanics of Composite Materials [in Russian], Riga (1982), pp. 33–41.

  11. 11.

    F. Ya. Bulavs and I. G. Radin'sh, “Time change in the stress-strain state of the components of unidirectionally-reinforced plastics during long-term static loading,” in: Mechanics of Composite Materials [in Russian], Riga (1980), pp. 5–18.

  12. 12.

    S. Knappe and W. Schneider, “Bruchkriterien für unidirektionalen Glasfasser. Kunststoff unter ebener Kurzzeit -und Langzeitbeanspruchung,” Kunststoffe,62, No. 10, 864–868 (1972).

  13. 13.

    E. M. Wu and D. C. Ruhmann, “Stress rupture of glass-epoxy composites: environmental and stress effects,” Composite Reliability, An. Soc. Test. Mater. Spec. Tech. Publ., No. 580, 263–287 (1975).

  14. 14.

    F. Ya. Bulavs and I. G. Radin'sh, “Micromechanics of the creep of unidirectionallyreinforced plastics in longitudinal shear,” in: Mechanics of Reinforced Plastics [in Russian], Riga (1981), pp. 19–26.

  15. 15.

    H. F. Brinson, W. I. Griffith, and D. H. Morris, “Creep rupture of polymer-matrix composites,” Exp. Mech., 21, No. 9, 329–335 (1981).

  16. 16.

    I. G. Radin'sh and M. R. Gurvich, “Viscoelastic properties of laminated reinforced plastics during long-term loading,” in: Mechanics of Reinforced Plastics [in Russian], Riga (1981), pp. 76–89.

  17. 17.

    M. R. Gurvich, “Numerical method of studying the Viscoelastic properties of laminated reinforced plastics during combination loading,” in: Mechanics of Reinforced Plastics [in Russian], Riga (1985), pp. 49–60.

  18. 18.

    B. D. Agarwal and L. J. Broutman, Analysis and Performance of Fiber Composites, New York (1980).

  19. 19.

    I. Bax, “Deformation behavior and failure of glassfiber-reinforced resin material,” Plast. Polym., 38, No. 133, 27–30 (1970).

  20. 20.

    M. R. Gurvich and F. Ya. Bulavs, “Efficient design of the structure of laminated reinforced materials on the basis of strength conditions,” in: Design and Optimization of Engineering Structures [in Russian], Riga (1984), pp. 111–118.

  21. 21.

    F. Ya. Bulavs and M. R. Gurvich, “Method of efficiently designing laminated reinforced plastics with components having prescribed properties,” in: Mechanics of Reinforced Plastics [in Russian], Riga (1983), pp. 69–80.

  22. 22.

    F. Ya. Bulavs and M. R. Gurvich, “Effect of structural parameters on the continuity of laminated reinforced plastics,” in: Mechanics of Composite Materials [in Russian], Riga (1984), pp. 21–30.

  23. 23.

    F. Ya. Bulavs and M. R. Gurvich, “Efficient design of laminated reinforced plastics subjected to long-term plane loading,” in: Design and Optimization of Engineering Structures [in Russian], Riga (1983), pp. 112–118.

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Translated from Mekhanika Kompozitnykh Materialov, No. 5, pp. 833–839, September–October, 1989.

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Skudra, A.M., Gurvich, M.R. Structural theory of the strength of reinforced plastics. Mech Compos Mater 25, 610–615 (1990). https://doi.org/10.1007/BF00612903

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Keywords

  • Polymer
  • Stress State
  • Inverse Problem
  • Loading Condition
  • Rheological Property