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Local stability loss and failure of cracked plates during the plastic deformation of materials

Abstract

The phenomena of local stability loss of thin cracked plates under tension, which develops for certain ratios between crack length and plate thickness, and its effect on the structure and strength characteristics of the plates, is not well understood. Guz' and Dyshel' [1] provide the most complete review of research performed. Virtually all experimental investigations, however, have been conducted on plates, the material of which was in the elastic stage of deformation right up to the start of the failure process, i.e., the influsence exerted by the material's plastic properties on the critical and failing loads has not been investigated. This report cites the results of tests of cracked plates found in the elasto-plastic and plastic stages of deformation.

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References

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    A. M. Guz' and M. Sh. Dyshel', "Failure and stability of notched thin-wall boides in tension (review)," Prikl. Mekh,26, No. 11, 3–24, (1990).

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    A. S. Vol'mir, Stability of Elastic Systems [in Russian], Fizmatgiz, Moscow (1963).

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    M. Sh. Dyshel', "Stability of thin cracked plates in biaxial tension," Prikl. Mekh.,18, No. 10, 80–85 (1982).

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Additional information

S. P. Timoshenko Mechanics Institute, Ukraine Academy of Sciences, Kiev. Translated from Prikladnaya Mekhanika, Vol. 30, No. 1, pp. 51–55, January, 1994.

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Dyshel', M.S. Local stability loss and failure of cracked plates during the plastic deformation of materials. Int Appl Mech 30, 44–47 (1994). https://doi.org/10.1007/BF00847154

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Keywords

  • Plastic Deformation
  • Experimental Investigation
  • Crack Length
  • Plate Thickness
  • Strength Characteristic