Shape Sensing of Plate and Shell Structures Undergoing Large Displacements Using the Inverse Finite Element Method
The inverse Finite Element Method (iFEM) is applied to reconstruct the displacement field of a shell structure which undergoes large deformations using discreet strain measurements as the prescribed data. The iFEM computations are carried out using an incremental procedure where at each load step, t...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2018/8076085 |
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| author | Alexander Tessler Rinto Roy Marco Esposito Cecilia Surace Marco Gherlone |
| author_facet | Alexander Tessler Rinto Roy Marco Esposito Cecilia Surace Marco Gherlone |
| author_sort | Alexander Tessler |
| collection | DOAJ |
| description | The inverse Finite Element Method (iFEM) is applied to reconstruct the displacement field of a shell structure which undergoes large deformations using discreet strain measurements as the prescribed data. The iFEM computations are carried out using an incremental procedure where at each load step, the incremental strains are used to evaluate the incremental displacements which in turn update the geometry of the deformed structure. The efficacy of the proposed approach to predict large displacements is examined using two case studies involving a cantilevered wing-shaped plate and a clamped plate. The incremental iFEM procedure is demonstrated to be sufficiently accurate in terms of reproducing the correct nonlinear character of the load-displacement curve even when a reduced number of strain sensors is used. Therefore, this approach may have important implications for real-time monitoring of aerospace structures that undergo large displacements. |
| format | Article |
| id | doaj-art-6428cda4e68643ae9755314b6300a658 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-6428cda4e68643ae9755314b6300a6582025-02-03T01:22:20ZengWileyShock and Vibration1070-96221875-92032018-01-01201810.1155/2018/80760858076085Shape Sensing of Plate and Shell Structures Undergoing Large Displacements Using the Inverse Finite Element MethodAlexander Tessler0Rinto Roy1Marco Esposito2Cecilia Surace3Marco Gherlone4NASA Langley Research Center, Structural Mechanics and Concepts Branch, Hampton, VA, USAPolitecnico di Torino, Department of Structural, Geotechnical and Building Engineering, Torino, ItalyPolitecnico di Torino, Department of Mechanical and Aerospace Engineering, Torino, ItalyPolitecnico di Torino, Department of Structural, Geotechnical and Building Engineering, Torino, ItalyPolitecnico di Torino, Department of Mechanical and Aerospace Engineering, Torino, ItalyThe inverse Finite Element Method (iFEM) is applied to reconstruct the displacement field of a shell structure which undergoes large deformations using discreet strain measurements as the prescribed data. The iFEM computations are carried out using an incremental procedure where at each load step, the incremental strains are used to evaluate the incremental displacements which in turn update the geometry of the deformed structure. The efficacy of the proposed approach to predict large displacements is examined using two case studies involving a cantilevered wing-shaped plate and a clamped plate. The incremental iFEM procedure is demonstrated to be sufficiently accurate in terms of reproducing the correct nonlinear character of the load-displacement curve even when a reduced number of strain sensors is used. Therefore, this approach may have important implications for real-time monitoring of aerospace structures that undergo large displacements.http://dx.doi.org/10.1155/2018/8076085 |
| spellingShingle | Alexander Tessler Rinto Roy Marco Esposito Cecilia Surace Marco Gherlone Shape Sensing of Plate and Shell Structures Undergoing Large Displacements Using the Inverse Finite Element Method Shock and Vibration |
| title | Shape Sensing of Plate and Shell Structures Undergoing Large Displacements Using the Inverse Finite Element Method |
| title_full | Shape Sensing of Plate and Shell Structures Undergoing Large Displacements Using the Inverse Finite Element Method |
| title_fullStr | Shape Sensing of Plate and Shell Structures Undergoing Large Displacements Using the Inverse Finite Element Method |
| title_full_unstemmed | Shape Sensing of Plate and Shell Structures Undergoing Large Displacements Using the Inverse Finite Element Method |
| title_short | Shape Sensing of Plate and Shell Structures Undergoing Large Displacements Using the Inverse Finite Element Method |
| title_sort | shape sensing of plate and shell structures undergoing large displacements using the inverse finite element method |
| url | http://dx.doi.org/10.1155/2018/8076085 |
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