Interaction of bridged cracks in a circular disk

What is it about?

The obtained closed algebraic system of equations and limit condition of the crack growth permits by means of numerical calculation and for each specific circular disk to set up admissible size of cracks for different laws of deformation of interparticle bonds, elastic and geometrical characteristics of the material and disk.

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Why is it important?

The developed calculation method permits to solve the following practically important problems: 1) to estimate the guaranteed life of a circular disk with regard to expected defects and loading conditions; 2) to set up admissible level of defects and maximum value of workloads providing sufficient safety margin; 3) to conduct the choice of a disk material with a complex characteristics of fracture toughness.