Application of the quadrupole method for simulation of passive thermography | Zendy

William P. Winfree | Zendy; Joseph N. Zalameda | Zendy; Elizabeth D. Gregory | Zendy

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Application of the quadrupole method for simulation of passive thermography

Author(s) -

William P. Winfree,

Joseph N. Zalameda,

Elizabeth D. Gregory

Publication year - 2017

Publication title -

proceedings of spie, the international society for optical engineering/proceedings of spie

Language(s) - English

Resource type - Conference proceedings

SCImago Journal Rank - 0.192

H-Index - 176

eISSN - 1996-756X

pISSN - 0277-786X

DOI - 10.1117/12.2264946

Subject(s) - thermography , planar , nondestructive testing , materials science , thermal , measure (data warehouse) , acoustics , temperature measurement , quadrupole , surface (topology) , optics , structural engineering , infrared , computer science , engineering , physics , geometry , thermodynamics , computer graphics (images) , mathematics , atomic physics , quantum mechanics , database

Passive thermography has been shown to be an effective method for in situ and real time nondestructive evaluation (NDE) to measure damage growth in a composite structure during cyclic loading. The heat generation by subsurface flaw results in a measurable thermal profile at the surface. This paper models the heat generation as a planar subsurface source and calculates the resultant temperature profile at the surface using a three dimensional quadrupole. The results of the model are compared to finite difference simulations of the same planar sources.

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