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Stress concentration around several holes in structural elements

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Conclusions

Our analysis of specific numerical results for nonclassical problems has thus established two conclusions.

1. The stresses do not increase monotonically as the holes are brought closer together (in the case of problems for shells under static loading and for plates under dynamic loading).

2. For several holes in the case of problems for plates under dynamic loading, the maxima of the stress concentration factors can occur in the interior of the main region rather than at the edges of the holes, depending on the frequency and form of the applied load.

These conclusions do not apply to classical problems (the planar problem under static loading) and must therefore be taken into account when stress concentrations are created.

Because of space limitations, the concluding part of this article was not included in the EPMESC'92 Conference Proceedings and is therefore published here in its entirety.

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References

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    A. N. Guz' and V. T. Golovchin, Diffraction of Elastic Waves in Multiply Connected Bodies [in Russian], Naukova Dumka, Kiev (1972).

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    A. N. Guz', V. P. Kubenko, and M. A. Cherevko, Diffraction of Elastic Waves [in Russian], Naukova Dumka, Kiev (1978).

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    A. N. Guz', A. G. Makarenkov, and I. S. Chernyshenko, Strength of Solid-Propellant Rocket Engine Structures [in Russian], Mashinostroenie, Moscow (1980).

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    A. N. Guz', I. S. Chernyshenko, Val. N. Chekhov, Vik. N. Chekhov, and K. I. Shnerenko, Methods for the Calculation of Shells. Volume I: Theory of Thin Shells Weakened by Holes [in Russian], Naukova Dumka, Kiev (1980).

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    A. S. Kosmodamianskii, The Planar Elasticity Problem for Plates with Holes, Recesses, and Protuberances [in Russian], Vishcha Shkola, Kiev (1975).

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    G. N. Savin, Stress Distribution Around Holes [in Russian], Naukova Dumka, Kiev (1968).

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Additional information

This is the complete text of a paper that was presented by the author at the EPMESC'92 International Conference in Talien, China, June 30-August 2, 1992, but was not published in its entirely in the Conference Proceedings.

S. P. Timoshenko Institute of Mechanics, Academy of Sciences of Ukraine, Kiev. Translated from Prikladnaya Mekhanika, Vol. 30, No. 4, pp. 6–13, April, 1994.

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Guz', A.N. Stress concentration around several holes in structural elements. Int Appl Mech 30, 250–256 (1994). https://doi.org/10.1007/BF00847217

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Keywords

  • Static Loading
  • Stress Concentration
  • Applied Load
  • Dynamic Loading
  • Planar Problem