Evaluation of the Size of the Inelastic Deformation Zone at a Crack Tip Based on the Analysis of Displacement Fields


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The damaged zone (the inelastic deformation zone) near a crack tip is the region where the stress–strain state (SSS) cannot be described by fundamental functions in the solution of the elastic problem of a crack (the Williams solution). For the description of SSS outside the damaged zone, the Williams expansion is used, which requires a number of regular terms to be considered. It is proposed to use digital optical techniques for measuring the SSS parameters in the crack zone to provide a large amount of experimental information in the form of displacement fields on the surface of the studied object directly in digital form.

Sobre autores

A. Chernyatin

Bauman Moscow State Technical University; Blagonravov Mechanical Engineering Research Institute

Autor responsável pela correspondência
Email: cas@inbox.ru
Rússia, Moscow; Moscow

I. Razumovskii

Blagonravov Mechanical Engineering Research Institute

Email: cas@inbox.ru
Rússia, Moscow

Yu. Matvienko

Blagonravov Mechanical Engineering Research Institute

Email: cas@inbox.ru
Rússia, Moscow

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