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Numerical Estimation of Notch Stress Intensity Factors of Sharp V-Notches
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Numerical Estimation of Notch Stress Intensity Factors of Sharp V-Notches
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Numerical Estimation of Notch Stress Intensity Factors of Sharp V-Notches
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Journal Article
Numerical Estimation of Notch Stress Intensity Factors of Sharp V-Notches
2018
Overview
In the present work a simple and efficient least squares method is implemented for accurate estimation of notch stress intensity factors (NSIFs) of sharp V-notches. Finite element (FE) stress components near a notch tip is used in the present method for determining the NSIFs. Pure mode I and mixed mode (I/II) examples are considered for numerical investigations. The mixed mode stress components are disintegrated into opening mode and shear mode stress components to separate out the mode I and mode II singularities. Thereafter, least squares method is implemented to calculate mixed mode NSIFs. The present method is easy to incorporate in existing standard finite element codes. The results obtained by the present method are found to be in good agreement with the published data.
Publisher
EDP Sciences
