Experimentally Determined Stresses at Geometric Discontinuities Using Simple Stress Functions
Publication: Journal of Engineering Mechanics
Volume 141, Issue 11
Abstract
Recognizing that the most serious structural stresses often occur at holes or notches, the ability to determine such stresses by combining recorded load-induced temperature information with simple stress functions is demonstrated. Purely theoretical/analytical or numerical stress analyses typically require knowing the external boundary conditions, something which is frequently unknown. Moreover, theoretical stress analyses tend to be restricted to simple, infinite structures. Stresses evaluated at the edge of geometric discontinuities by traditional experimental approaches can be very unreliable. On the other hand, the present technique provides accurate stresses at and in the neighborhood of a hole in an edge-loaded finite plate by processing the recorded temperature data with a simple, general stress function.
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Acknowledgments
Elsevier kindly gave permission to reprint the present Figs. 5 and 7 [Figs. 7 and 9 with respective captions “Normalized hoop stress around the boundary of the hole” and “Normalized for locations in Fig. 15” of the original manuscript Lin, S-J., Matthys, D. R., Quinn, S., Davidson J.P., Boyce, B. R., Khaja, A. A. and Rowlands, R. E. (2013). “Stresses at and in the neighborhood of a near-edge hole in a plate subjected to an off-set load from measured temperatures.” Eur. J. Mech. A. Solids, 39, 209–217]. Springer Science and Business Media kindly gave permission to reprint the present Figs. 9 and 11 [from Figs. 8 and 10 with respective captions captions “Normalized hoop stress, , at the hole boundary” and “Normalized for locations in Fig. 9” of the original manuscript Lin, S. J., Quinn, S., Matthys, D. R., New, A. M, Kincaid, I. M., Boyce, B. R., Khaja, A. A. and Rowlands, R. E. (2011). “Thermoelastic determination of individual stresses in vicinity of a near-edge hole beneath a concentrated load.” Exp. Mech., 51(6), 797–814].
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© 2015 American Society of Civil Engineers.
History
Received: Jun 24, 2014
Accepted: Dec 8, 2014
Published online: May 11, 2015
Discussion open until: Oct 11, 2015
Published in print: Nov 1, 2015
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