Journal ArticleDOI
Analysis of displacement fields from a high-speed impact using shape descriptors
Richard L. Burguete,George Lampeas,John E. Mottershead,Eann A. Patterson,Andrea Pipino,Thorsten Siebert,Weizhuo Wang,Weizhuo Wang +7 more
TLDR
In this article, a composite bonnet liner subject to a high-velocity (70 m/s), low-energy (<300 J) impact by a 50mm-diameter projectile was investigated using computational simulation and by experiment.Abstract:
A composite bonnet liner subject to a high-velocity (70 m/s), low-energy (<300 J) impact by a 50-mm-diameter projectile has been investigated using computational simulation and by experiment High-read more
Citations
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Damage methodology approach on a composite panel based on a combination of Fringe Projection and 2D Digital Image Correlation
TL;DR: In this paper, the authors presented an alternative method to investigate the severity of damage on a composite structure and how the damage affects to its integrity through the analysis of the full field modal behaviour.
Journal ArticleDOI
On the validation of solid mechanics models using optical measurements and data decomposition
TL;DR: A step-by-step approach for performing model validation by combining full-field optical measurement methodologies with computational simulation techniques to demonstrate effective techniques to perform data compression using the principles of orthogonal decomposition.
Journal ArticleDOI
An evaluation of a protocol for the validation of computational solid mechanics models
TL;DR: The objective of the reported study was to assess the effectiveness and usefulness of a recently published approach that provides an efficient method for comparing data fields from the simulations and experiments, and which incorporates the uncertainty arising in the experimental data in the assessment of the model validity.
Journal ArticleDOI
A probabilistic metric for the validation of computational models.
TL;DR: In this paper, a new validation metric is proposed that combines the use of a threshold based on the uncertainty in the measurement data with a normalized relative error, and that is robust in the presence of large variations in the data.
Journal ArticleDOI
Comparative of conventional and alternative Digital Image Correlation techniques for 3D modal characterisation
TL;DR: FP + DIC was explored together with conventional 3D-DIC for challenging modal analysis on a large aeronautical panel under random excitation and demonstrated to be a cost-effective alternative for 3D modal analyses.
References
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Journal ArticleDOI
Image coding using wavelet transform
TL;DR: A scheme for image compression that takes into account psychovisual features both in the space and frequency domains is proposed and it is shown that the wavelet transform is particularly well adapted to progressive transmission.
Journal ArticleDOI
Image analysis via the general theory of moments
TL;DR: Two-dimensional image moments with respect to Zernike polynomials are defined, and it is shown how to construct an arbitrarily large number of independent, algebraic combinations of zernike moments that are invariant to image translation, orientation, and size as discussed by the authors.
Book
Finite Element Model Updating in Structural Dynamics
TL;DR: A comparison of Numerical Data with Test Results and Iterative Methods Using Modal Data for Model Updating shows that the former is more accurate than the latter.
Journal ArticleDOI
Fourier Descriptors for Plane Closed Curves
Charles T. Zahn,Ralph Roskies +1 more
TL;DR: It is established that the Fourier series expansion is optimal and unique with respect to obtaining coefficients insensitive to starting point and the amplitudes are pure form invariants as well as are certain simple functions of phase angles.
BookDOI
Shape Analysis and Classification: Theory and Practice
TL;DR: Both beginning and advanced researchers can directly use its state-of-the-art concepts and techniques to solve their own problems involving the characterization and classification of visual shapes.