Evaluation of mixed mode (I/II) notch stress intensity factors of sharp V-notches using point substitution displacement technique

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Published Mar 8, 2019
DOI https://doi.org/10.3221/IGF-ESIS.48.58

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Mirzaul Karim Hussain
PhD Student, Indian Institute of Technology Guwahati
https://orcid.org/0000-0003-4300-360X K.S.R.K. Murthy
Professor, Department of Mechanical Engineering, indian Institute of Technology Guwahati, Guwahati-781039, India
https://orcid.org/0000-0002-9112-8557

Abstract

In this paper, determination of the accurate notch stress intensity factors (NSIFs) have been demonstrated using a recently proposed technique: The point substitution displacement technique (PSDT) for the sharp Vnotched configurations. In this technique, certain optimal point(s) on the notch flanks are obtained where the displacements are found to be highly accurate. Using the PSDT, the NSIFs are determined from the finite element (FE) displacements at these optimal point(s). The NSIFs of one pure mode I and two mixed mode (I/II) examples have been determined and excellent agreement of the present results with the published results is observed. The PSDT is efficient, robust and easy to be implemented in the available FE code.

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    Issue
    Vol. 13 No. 48 (2019): April 2019
    Section
    SI: Showcasing Structural Integrity Research in India

    How to Cite

    Hussain, M. K. and Murthy, K. (2019) “Evaluation of mixed mode (I/II) notch stress intensity factors of sharp V-notches using point substitution displacement technique”, Frattura ed Integrità Strutturale, 13(48), pp. 599–610. doi: 10.3221/IGF-ESIS.48.58.

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