A multilevel treatment of moiré fringe data using finite elements

Autor:	C. E. Freese, L. Gee
Rok vydání:	1999
Předmět:	Computer science business.industry Mechanical Engineering Aerospace Engineering Image processing Moiré pattern Displacement (vector) Finite element method Visualization Interferometry Optics Mechanics of Materials business Representation (mathematics) Algorithm Smoothing
Zdroj:	Experimental Mechanics. 39:304-310
ISSN:	1741-2765 0014-4851
DOI:	10.1007/bf02329809
Popis:	Finite element procedures are applied to the modeling, analysis and visualization of experimental moire data. Smoothing elements are introduced and evaluated with respect to data sparseness and error. A one-dimensional smoothing element is uniquely coupled with the method of principal curves to extract moire fringe centers. A two-dimensional smoothing element is then used to produce a full-field representation given the fringe locations. The moire technique is applied to the four-point bend experiment, and the surface-modeling technique is used to obtain displacement and gradient (strain) information.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8168a876e0fc8248fe038c08aca81bc8 https://doi.org/10.1007/bf02329809 Zobrazit plný text záznamu Full text from SpringerLink