Zhuang He and Andrei Kotousov
Estimation of Stress Intensity Factors from Near Crack Tip Field
1172 - 1176
2015
9
7
International Journal of Aerospace and Mechanical Engineering
https://publications.waset.org/pdf/10001495
https://publications.waset.org/vol/103
World Academy of Science, Engineering and Technology
All current experimental methods for determination of
stress intensity factors are based on the assumption that the state of
stress near the crack tip is plane stress. Therefore, these methods rely
on strain and displacement measurements made outside the near
crack tip region affected by the threedimensional effects or by
process zone. In this paper, we develop and validate an experimental
procedure for the evaluation of stress intensity factors from the
measurements of the outofplane displacements in the surface area
controlled by 3D effects. The evaluation of stress intensity factors is
possible when the process zone is sufficiently small, and the
displacement field generated by the 3D effects is fully encapsulated
by Kdominance region.
Open Science Index 103, 2015