MATEC Web of Conferences
Volume 172, 20183rd International Conference on Design, Analysis, Manufacturing and Simulation (ICDAMS 2018)
|Number of page(s)||5|
|Published online||12 June 2018|
Fatigue life prediction under mixed-mode loading using equivalent stress intensity factor models
Research Scholar, Department of Mechanical Engineering, Indian Institute of Technology Guwahati, Guwahati - 781039, India.
2 Professor, Department of Mechanical Engineering, Indian Institute of Technology Guwahati, Guwahati - 781039, India.
* Corresponding author: email@example.com
Damage tolerance principles are widely used to assess the structural integrity and failure of engineering components. The advances in numerical simulation techniques facilitate the prediction of fatigue life of engineering component, which is essential in damage tolerance design. For the components under mixed mode (I/II) loading, the fatigue crack growth and life is predicted by using a modified form of Paris' law along with the equivalent stress intensity factor (ΔKeq). Numerous ΔKeq models are available for correlating the equivalent stress intensity factor range and the fatigue crack growth rate. The knowledge of proper ΔKeq model is essential for the accurate fatigue life estimation. In this work, the authors numerically assess the performance of ΔKeq models in mixed mode fatigue life prediction with the help of published experimental mixed mode data.
Key words: Fatigue / mixed mode / crack growth / stress intensity factor / fatigue crack
© 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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