
Proceedings Paper
Electrical resistance tomography with constrained sine wave solutions for impact damage identification in glass fiber/epoxy/carbon black laminate compositesFormat | Member Price | Non-Member Price |
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Paper Abstract
Electrical impedance tomography (EIT) has incredible potential for structural health monitoring (SHM) when applied to
structures in which mechanical damage is coupled with changes in electrical conductivity. Practically, however, the
potential of EIT for SHM is largely nullified by requiring both non-negligible computational resources and accurate
initial conductivity estimates. By working in resistivity instead of conductivity and constraining the change in resistivity
to be a series of two-dimensional sine waves, a novel resistivity-based EIT formulation is herein developed that
significantly abates the computational requirements of EIT and is independent of initial estimates. This approach is
explored analytically and then demonstrated experimentally by locating impact damage to a glass fiber/epoxy/carbon
black laminate.
Paper Details
Date Published: 20 April 2016
PDF: 9 pages
Proc. SPIE 9803, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2016, 980310 (20 April 2016); doi: 10.1117/12.2222573
Published in SPIE Proceedings Vol. 9803:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2016
Jerome P. Lynch, Editor(s)
PDF: 9 pages
Proc. SPIE 9803, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2016, 980310 (20 April 2016); doi: 10.1117/12.2222573
Show Author Affiliations
T. N. Tallman, Purdue Univ. (United States)
Published in SPIE Proceedings Vol. 9803:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2016
Jerome P. Lynch, Editor(s)
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