Mechanics of Composite Materials

, Volume 17, Issue 6, pp 672–677 | Cite as

Strength of laminated cylindrical shells upon nonproportional loading

  • A. F. Ermolenko
  • V. D. Protasov
Article
  • 12 Downloads

Conclusions

  1. 1.

    A general approach to the construction of a fracture model of multielement systems has been proposed.

     
  2. 2.

    A mathematical model of the fracture of a laminated cylindrical shell has been developed on the basis of the proposed approach, and the effect of the loading path and the number of layers in the shell (scaling effect) on the form of the strength diagram has been investigated.

     
  3. 3.

    The effect on the form of the strength diagram of statistical effects associated with the omission from the discussion of shells which lose competence during preliminary loading has been shown; a type of scaling effect which qualitatively affects the form of the strength diagram has been detected along with the known scaling effect; the effect of the loading path on the form of the strength diagrams has been shown.

     

Keywords

Mathematical Model Cylindrical Shell Statistical Effect Fracture Model Scaling Effect 

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Literature cited

  1. 1.
    V. V. Bolotin, The Application of the Methods of Probability Theory and Reliability Theory in Structure Calculations [in Russian], Moscow (1971).Google Scholar
  2. 2.
    I. F. Obraztsov, V. V. Vasil'ev, and V. A. Bunakov, Optimal Reinforcement of Shells of Revolution Made Out of Composite Materials [in Russian], Moscow (1977).Google Scholar
  3. 3.
    V. D. Protasov, A. F. Ermolenko, A. A. Filipenko, and I. P. Dimitrienko, “An investigation of the competence of laminated cylindrical shells with the help of computer simulation of the fracture process,” Mekh. Polim., No. 2, 254–261 (1980).Google Scholar

Copyright information

© Plenum Publishing Corporation 1982

Authors and Affiliations

  • A. F. Ermolenko
  • V. D. Protasov

There are no affiliations available

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