Biblioteca Digital do Instituto Politécnico de Bragança   Instituto Politécnico de Bragança

Biblioteca Digital do IPB >
Escola Superior de Tecnologia e Gestão >
Mecânica Aplicada >
DMA - Posters em Encontros Científicos Internacionais >

Please use this identifier to cite or link to this item: http://hdl.handle.net/10198/7126

Título: Measuring displacement field detection of unbounded regions in a single lap Joint with moiré
Autor: Ribeiro, J.E.
Vaz, M.A.P.
Lopes, H.
Monteiro, J.
Piloto, P.A.G.
Palavras-chave: Displacement field
Moiré interferometry
Issue Date: 2006
Editora: Michel Grédiac & Jonathan Huntley
Citação: Ribeiro, J.E.; Vaz, M.A.; Lopes, H.; Monteiro, J.; Piloto, P.A.G. (2006) - Measuring displacement field detection of unbounded regions in a single lap Joint with moiré. In Photomechanics 2006. Clermont-Ferrand, France.
Resumo: The goal of this work is the development of an experimental technique to measure the displacement field and to perform detection of unbonded regions [1] in a single lap joint [2, 3]. The proposed experimental technique is based on the use of Moiré Interferometry. It is a field technique that allows in-plane displacement measurements without contact and with high resolution [4, 5]. Grating replication techniques were developed to record high quality diffraction gratings onto the specimen’s surfaces [6]. It was also, developed an optical assembly of laser interferometry used to generate the master grating (virtual) [7]. A tension load was applied to a lap joint and its deformation was accessed by the interference between the reference grating, recorded on the object surface, and virtual master grating generated by laser interferometry. A phase shifting technique [8] was developed to allow the phase map calculation. Image processing techniques [9] will be used to assess the in-plane displacement field. A finite elements code (ANSYS®) will be used to calculate the displacement field [10, 11]. An unbonded region in a single lap joint was numerically simulated and the obtained results will be compared with those obtained in the experimental work. In the figure 1 it’s possible to observe the displacement field, measured in a horizontal direction, of a single lap sound joint: and the results obtained by numerical simulation.
URI: http://hdl.handle.net/10198/7126
Appears in Collections:DMA - Posters em Encontros Científicos Internacionais

Files in This Item:

File Description SizeFormat
Abstract.pdf90,2 kBAdobe PDFView/Open

Please give feedback about this item
Statistics
FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpaceOrkut
Formato BibTex mendeley Endnote Logotipo do DeGóis 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 


© Instituto Politécnico de Bragança - Biblioteca Digital - Feedback - Statistics
Promotores do RCAAP   Financiadores do RCAAP

Fundação para a Ciência e a Tecnologia Universidade do Minho   Governo Português Ministério da Educação e Ciência PO Sociedade do Conhecimento (POSC) Portal oficial da União Europeia