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NDE Faculty

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William P. Winfree

Adjunct Professor
Department of Applied Science
College of William and Mary
Williamsburg, VA, 23187-8795

Chief Engineer for Measurement Science
NASA Langley Research Center,
Hampton, VA 23681
William.P.Winfree@nasa.gov

Bill Winfree is researching new applications of thermal wave techniques for the nondestructive evaluation (NDE) aerospace materials and structures. The heat flow in these systems is investigated using both experimental techniques and computer simulations. Recent work has involved the inversion of thermographic data to characterize subsurface characteristics such as subsurface geometry, porosity, and delamination in laminated structures. These techniques have diverse applications in characterizing bonding in aging aircraft, measuring thermal diffusivity of diamond film, and characterizing the laminar-turbulent transition in air flow over an airfoil.