Characterization of composite plates using the virtual fields method with optimized loading conditions
This paper deals with the direct identification of bending stiffnesses of thin homogeneous anisotropic plates. The idea is to determine the unknown parameters from a single test giving a unique heterogeneous strain field. For the purpose of identification, the virtual fields method (VFM) is used....
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iium-67362013-01-03T03:30:28Z http://irep.iium.edu.my/6736/ Characterization of composite plates using the virtual fields method with optimized loading conditions Kashif, Syed Muhammad Toussaint, Evelyne Gre´diac, M. Avril, Ste´phane Kim, J. H. TA630 Structural engineering (General) This paper deals with the direct identification of bending stiffnesses of thin homogeneous anisotropic plates. The idea is to determine the unknown parameters from a single test giving a unique heterogeneous strain field. For the purpose of identification, the virtual fields method (VFM) is used. Here, the VFM is used taking into account two very recent developments: the piecewise construction of virtual fields and the noise minimization effect. Using these new aspects, improvements in terms of result accuracy are shown in comparison to previous studies. These new aspects are used as a tool to grade and to optimize different testing configurations with respect to the location of the applied loading. Some preliminary experimental results are then presented. They are in good agreement with theoretical expectations found in the first part of the study. Keywords: Virtual fields method; Inverse problem; Minimization of noise effect; Optimized testing configuration; Flexure rigidities; Anisotropic composite materials Science Direct 2008-09 Article PeerReviewed application/pdf en http://irep.iium.edu.my/6736/1/SMK_P-2.pdf Kashif, Syed Muhammad and Toussaint, Evelyne and Gre´diac, M. and Avril, Ste´phane and Kim, J. H. (2008) Characterization of composite plates using the virtual fields method with optimized loading conditions. Composite Structures, 85 (1). pp. 70-82. ISSN 02638223 http://dx.doi.org/10.1016/j.compstruct.2007.10.021 doi:10.1016/j.compstruct.2007.10.021 |
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TA630 Structural engineering (General) Kashif, Syed Muhammad Toussaint, Evelyne Gre´diac, M. Avril, Ste´phane Kim, J. H. Characterization of composite plates using the virtual fields method with optimized loading conditions |
description |
This paper deals with the direct identification of bending stiffnesses of thin homogeneous anisotropic plates. The idea is to determine
the unknown parameters from a single test giving a unique heterogeneous strain field. For the purpose of identification, the virtual fields
method (VFM) is used. Here, the VFM is used taking into account two very recent developments: the piecewise construction of virtual
fields and the noise minimization effect. Using these new aspects, improvements in terms of result accuracy are shown in comparison to
previous studies. These new aspects are used as a tool to grade and to optimize different testing configurations with respect to the location
of the applied loading. Some preliminary experimental results are then presented. They are in good agreement with theoretical expectations
found in the first part of the study.
Keywords: Virtual fields method; Inverse problem; Minimization of noise effect; Optimized testing configuration; Flexure rigidities; Anisotropic composite
materials |
format |
Article |
author |
Kashif, Syed Muhammad Toussaint, Evelyne Gre´diac, M. Avril, Ste´phane Kim, J. H. |
author_facet |
Kashif, Syed Muhammad Toussaint, Evelyne Gre´diac, M. Avril, Ste´phane Kim, J. H. |
author_sort |
Kashif, Syed Muhammad |
title |
Characterization of composite plates using the virtual fields method with optimized loading conditions |
title_short |
Characterization of composite plates using the virtual fields method with optimized loading conditions |
title_full |
Characterization of composite plates using the virtual fields method with optimized loading conditions |
title_fullStr |
Characterization of composite plates using the virtual fields method with optimized loading conditions |
title_full_unstemmed |
Characterization of composite plates using the virtual fields method with optimized loading conditions |
title_sort |
characterization of composite plates using the virtual fields method with optimized loading conditions |
publisher |
Science Direct |
publishDate |
2008 |
url |
http://irep.iium.edu.my/6736/ http://irep.iium.edu.my/6736/ http://irep.iium.edu.my/6736/ http://irep.iium.edu.my/6736/1/SMK_P-2.pdf |
first_indexed |
2023-09-18T20:15:51Z |
last_indexed |
2023-09-18T20:15:51Z |
_version_ |
1777407782229639168 |