Title page for ETD etd-07292010-020011
|Type of Document
||Determination of stress intensity factors for cracks emanating from holes in finite thickness plates.
||Master of Science
|Smith, Charles W.
|Frair, K. L.
|Henneke, Edmund G. II
|Date of Defense
The stress freezing photoelastic method is a proven technique for the
estimation of stress intensity factors along crack fronts in complex three
dimensional problems. Comparisons between previous photoelastic and
approximate analytical results have revealed discrepancies in results for
the case where the crack shape is nearly quarter circular. In the present
study, the frozen stress photoelastic method was applied to such geometries
with varying flaw depth. Results are compared with those of other
investigators. It is concluded that the flaw growth in this problem is non-self
similar due to the complexity of boundary shapes. The variation of
the stress intensity factor along the crack front is also studied.
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