Experimentally Determined Stresses Associated with Elliptical Holes Using Polar Coordinates

:  This paper determines the individual components of stress experimentally in a finite tensile plate containing an elliptical hole using a series representation of an Airy stress function in terms of polar coordinates. The Airy coefficients are evaluated from measured temperature information. As we...

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Veröffentlicht in:Strain 2013-04, Vol.49 (2), p.116-124
Hauptverfasser: Khaja, A. A., Rowlands, R. E.
Format: Artikel
Sprache:eng
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Zusammenfassung::  This paper determines the individual components of stress experimentally in a finite tensile plate containing an elliptical hole using a series representation of an Airy stress function in terms of polar coordinates. The Airy coefficients are evaluated from measured temperature information. As well as satisfying force equilibrium, the thermoelastic results are substantiated independently using strain gages and finite element analysis. Employing real, rather than the commonly used complex, variables can be easier for such problems, avoids inconveniences associated with conformal mapping and the concept is applicable to experimental analysis of arbitrarily shaped and/or loaded cut‐outs.
ISSN:0039-2103
1475-1305
DOI:10.1111/str.12018