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William H. Prosser
Researcher at Langley Research Center
Publications - 54
Citations - 1195
William H. Prosser is an academic researcher from Langley Research Center. The author has contributed to research in topics: Acoustic emission & Acoustic wave. The author has an hindex of 18, co-authored 54 publications receiving 1137 citations.
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System for determining the angle of impact of an object on a structure
TL;DR: In this article, a method for determining the angle of impact of an object on a thin-walled structure was proposed, based on the analysis of the acoustic waves which result when an object impacts a structure, where transducers are placed on and in the surface of the structure which sense the wave caused in the structure by impact.
Proceedings ArticleDOI
Ultrasonic lamb waves in a thin plate
TL;DR: In this paper, the behavior of the wave field produced in a thin unidirectional graphite/epoxy composite plate by a dynamic point load is studied using an approximate shear deformation plate theory (S.D.T) and a finite element analysis (F.E.A).
Nonlinear elastic effects on the energy flux deviation of ultrasonic waves in gr/ep composites
TL;DR: In this paper, the effects of nonlinear elasticity on energy flux deviation in undirectional gr/ep composites are examined using acoustoelasticity theory and the second-and third-order elastic stiffness coefficients for T300/5208 GR/ep.
Distributed Impact Detector System (DIDS) Health Monitoring System Evaluation
TL;DR: In this paper, a Small Business Innovative Research (SBIR) contract was awarded to Invocon, Inc. to develop special wireless sensor systems that are compact, light weight, and have long battery lifetimes to enable applications to long duration space structures.
Journal ArticleDOI
Nonlinear elastic effects in graphite/epoxy: An analytical and numerical prediction of energy flux deviation
TL;DR: In this article, a finite element model (FEM) is developed where equations of motion include the effect of nonlinear elastic coefficients and Newmark's method is used to determine the shift in energy flux deviations in graphite/epoxy for different loading cases.