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Benchmarking of Computational Models for NDE and SHM of CompositesUltrasonic wave phenomena constitute the leading physical mechanism for nondestructive evaluation (NDE) and structural health monitoring (SHM) of solid composite materials such as carbon-fiber-reinforced polymer (CFRP) laminates. Computational models of ultrasonic guided-wave excitation, propagation, scattering, and detection in quasi-isotropic laminates can be extremely valuable in designing practically realizable NDE and SHM hardware and software with desired accuracy, reliability, efficiency, and coverage. This paper presents comparisons of guided-wave simulations for CFRP composites implemented using three different simulation codes: two commercial finite-element analysis packages, COMSOL and ABAQUS, and a custom code implementing the Elastodynamic Finite Integration Technique (EFIT). Comparisons are also made to experimental laser Doppler vibrometry data and theoretical dispersion curves.
Document ID
20170000825
Document Type
Conference Paper
Authors
Wheeler, Kevin
(NASA Ames Research Center Moffett Field, CA United States)
Leckey, Cara
(NASA Langley Research Center Hampton, VA United States)
Hafiychuk, Vasyl
(SGT, Inc. Moffett Field, CA, United States)
Juarez, Peter
(NASA Langley Research Center Hampton, VA United States)
Timucin, Dogan
(NASA Ames Research Center Moffett Field, CA United States)
Schuet, Stefan
(NASA Ames Research Center Moffett Field, CA United States)
Hafiychuk, Halyna
(SGT, Inc. Moffett Field, CA, United States)
Date Acquired
January 26, 2017
Publication Date
September 19, 2016
Subject Category
Quality Assurance And Reliability
Composite Materials
Report/Patent Number
Paper No. 2912
ARC-E-DAA-TN33721
Meeting Information
Annual Technical Conference of the American Society for Composites (ASC)(Williamsburg, VA)
Funding Number(s)
CONTRACT_GRANT: NNA14AA60C
Distribution Limits
Public
Copyright
Public Use Permitted.
Keywords
composite materials
nondestructive tests
simulation

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