Near surface stress analysis strategies for axisymmetric fretting |
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Authors: | M Ramesh Satish V Kailas K R Y Simha |
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Affiliation: | (1) Department of Mechanical Engineering, Indian Institute of Science, Bangalore, 560 012, India |
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Abstract: | Fretting is essentially a surface phenomenon, but bulk stresses and material properties contribute to subsequent failure.
This feature of fretting demands a thorough understanding of near surface stresses under the joint action of normal, shear and thermal loading. Axisymmetric fretting is of great concern in piping
and coupling design. In this paper, we develop design tools for Near Surface Analysis (NSA) for understanding axisymmetric
fretting. Axisymmetric Fretting Analysis (AFA) becomes formidable owing to localised tractions that call for Fourier transform
techniques. We develop two different NSA strategies based on two-dimensional plane strain models: 2D strip model (2DS) and
half-plane Flamant model (2DF). We compare the results of 2DS and 2DF with the exact results for AFA obtained using Love’s
stress function in conjunction with Fourier transform. There is a good correspondence between stress components obtained from
2D-models. |
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Keywords: | Solid cylinder axisymmetric analysis Fourier transform 2D-models |
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