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Comparison of theoretical and experimental results obtained in the study of thermal stresses in three-layer composite plates

Conclusions

  1. 1.

    Calculations by means of the above-presented improved procedure for the determination of the stressed state in the edge zone of multilayer plates are in good agreement with experimental results obtained by the photoelasticity method. The best agreement was obtained for the directly measured values ofτ max andτ xz.

  2. 2.

    The proposed procedure for the theoretical investigation by MBF can be applied in order to shorten the time and to reduce the time required for experiments; its confidence can be tested in the determination of thermal stresses by the polarization optical method in a cryogenic chamber using the KSP-7 instrument.

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Literature cited

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    Mechanics of Composite Materials [in Russian], Vol. 2, Moscow (1978).

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    S. A. Ambartsumyan, Theory of Anisotropic Plates [in Russian], Moscow (1967).

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    Ya. M. Grigorenko, Isotropic and Anisotropic Layered Rotatory Shells with Varying Rigidity [in Russian], Kiev (1973).

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    A. Ya. Aleksandrov and M. Kh. Akhmezyanov, Polarization Optical Methods of Mechanics of the Deformed Body [in Russian], Moscow (1973).

  11. 11.

    A. Dyurelli and U. Raili, Introduction to Photomechanics (Polarization Optical Method) [Russian translation], Moscow (1970).

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Additional information

Translated from Mekhanika Kompozitnykh Materialov, No. 5, pp. 779–784, September–October, 1981.

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Blumberg, N.N., Petrov, P.I. & Fraiman, A.R. Comparison of theoretical and experimental results obtained in the study of thermal stresses in three-layer composite plates. Mech Compos Mater 17, 520–524 (1982). https://doi.org/10.1007/BF00605247

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Keywords

  • Stressed State
  • Thermal Stress
  • Theoretical Investigation
  • Optical Method
  • Composite Plate