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Н.К. Веретимус, Д.К. Веретимус
10
Effect of the cumulative damage on the designed rate
of the low-cycle crack
© N.K. Veretimus, D.K. Veretimus
Bauman Moscow State Technical University, Moscow, 105005, Russia
The article considers the effect of cyclical patterns of damage on the formation and
growth of cracks under thermomechanical loading. The dependence of the crack growth
rate and number of cycles, for which the length of the crack will grow by
l, on cyclical
damage to EI437BU steel alloy and 15H2NMFA hull plate is obtained. The necessity of
taking into account the effect of accumulated damage kinetic fields to the crack growth
rate is justified.
Keywords:
damage, damage fields,
crack growth rate,
low-cycle fracture, durability.
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