Individual stresses in a finite graphite/epoxy laminated composite containing an elliptical hole are determined from recorded load-induced thermal information. Equilibrium and compatibility conditions are satisfied using complex-variable formulation, conformal mapping and analytic continuation. Processing the measured thermal data with a stress function simultaneous smooths the measured data and evaluates the individual stress components, including on the edge of the hole. Reliability of experimental results is demonstrated by FEM and force equilibrium.
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Abdullah Alshaya was funded by a graduate scholarship from the University of Kuwait.
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Alshaya, A., Shual, X. & Rowlands, R. Thermoelastic Stress Analysis of a Finite Orthotropic Composite Containing an Elliptical Hole. Exp Mech 56, 1373–1384 (2016). https://doi.org/10.1007/s11340-016-0174-x
- Thermoelastic stress analysis
- Composite materials
- Elliptical holes
- Complex variables