MATEC Web of Conferences
Volume 172, 20183rd International Conference on Design, Analysis, Manufacturing and Simulation (ICDAMS 2018)
|Number of page(s)||6|
|Published online||12 June 2018|
Numerical Estimation of Notch Stress Intensity Factors of Sharp V-Notches
Research Scholar, Department of Mechanical Engineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India - 781039
2 Professor, Department of Mechanical Engineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India - 781039
* Corresponding author: firstname.lastname@example.org
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.
Key words: Notch stress intensity factor / Sharp V-notch / Finite element method / Least squares method
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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