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We study the stress-strain state and limiting equilibrium of cracked cylindrical shells. The effect of crack closure caused by bending strains is taken into account according to the model of contact of crack lips along a line. By using the energy fracture criterion, we plot the diagrams of limiting equilibrium for any ratio of tensile and bending loads.
The δc -model of a crack-containing elastoplastic body was used to specify parameters that influence the healing of crack-type defects by filling them with the other material. The relationships are derived, which can predict the extent of crack-containing body strength recovery with various fillings. The “characteristic distance” of crack (filled or free) growth is established, when the intensity...
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