Failure investigation of debonded sandwich columns: An experimental and numerical study
Failure of compression loaded sandwich columns with an implanted through-width face/core debond is examined. Compression tests were conducted on sandwich columns containing implemented face/core debonds. The strains and out-of-plane displacements of the debonded region were monitored using the digital image correlation technique. Finite element analysis and linear elastic fracture mechanics were employed to predict the critical instability load and compression strength of the columns. Energy release rate and mode mixity were determined and compared to fracture toughness data obtained from TSD (tilted sandwich debond) tests, predicting propagation loads. Instability loads of the columns were determined from the out-of-plane displacements using the Southwell method. The finite element estimates of debond propagation and instability loads are in overall agreement with experimental results. The proximity of the debond propagation loads and the instability loads shows the importance of instability in connection with the debond propagation of sandwich columns.
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Format: | info:eu-repo/semantics/article biblioteca |
Language: | eng |
Subjects: | info:eu-repo/classification/Autores/BUCKLING, info:eu-repo/classification/Autores/COLUMNS, info:eu-repo/classification/Autores/COMPRESSIVE STRENGTH, info:eu-repo/classification/Autores/DEBOND DAMAGES, info:eu-repo/classification/Autores/FRACTURE MECHANICS, info:eu-repo/classification/Autores/SANDWICH STRUCTURES, info:eu-repo/classification/cti/7, |
Online Access: | http://cicy.repositorioinstitucional.mx/jspui/handle/1003/780 |
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dig-cicy-1003-7802017-12-04T17:24:44Z Failure investigation of debonded sandwich columns: An experimental and numerical study FRANCIS AVILES CETINA 2009 info:eu-repo/semantics/article Failure of compression loaded sandwich columns with an implanted through-width face/core debond is examined. Compression tests were conducted on sandwich columns containing implemented face/core debonds. The strains and out-of-plane displacements of the debonded region were monitored using the digital image correlation technique. Finite element analysis and linear elastic fracture mechanics were employed to predict the critical instability load and compression strength of the columns. Energy release rate and mode mixity were determined and compared to fracture toughness data obtained from TSD (tilted sandwich debond) tests, predicting propagation loads. Instability loads of the columns were determined from the out-of-plane displacements using the Southwell method. The finite element estimates of debond propagation and instability loads are in overall agreement with experimental results. The proximity of the debond propagation loads and the instability loads shows the importance of instability in connection with the debond propagation of sandwich columns. info:eu-repo/classification/Autores/BUCKLING info:eu-repo/classification/Autores/COLUMNS info:eu-repo/classification/Autores/COMPRESSIVE STRENGTH info:eu-repo/classification/Autores/DEBOND DAMAGES info:eu-repo/classification/Autores/FRACTURE MECHANICS info:eu-repo/classification/Autores/SANDWICH STRUCTURES info:eu-repo/classification/cti/7 info:eu-repo/classification/cti/7 Journal of Mechanics of Materials and Structures, 4(7-8), 1469-1487, 2009 http://cicy.repositorioinstitucional.mx/jspui/handle/1003/780 info:eu-repo/semantics/openAccess eng citation:Moslemian, R., Berggreen, C., Carlsson, L. A., & Aviles, F. (2009). Failure investigation of debonded sandwich columns: An experimental and numerical study. Journal of Mechanics of Materials and Structures, 4(7-8), 1469-1487. http://creativecommons.org/licenses/by-nc-nd/4.0 info:eu-repo/semantics/publishedVersion application/pdf |
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info:eu-repo/classification/Autores/BUCKLING info:eu-repo/classification/Autores/COLUMNS info:eu-repo/classification/Autores/COMPRESSIVE STRENGTH info:eu-repo/classification/Autores/DEBOND DAMAGES info:eu-repo/classification/Autores/FRACTURE MECHANICS info:eu-repo/classification/Autores/SANDWICH STRUCTURES info:eu-repo/classification/cti/7 info:eu-repo/classification/cti/7 info:eu-repo/classification/Autores/BUCKLING info:eu-repo/classification/Autores/COLUMNS info:eu-repo/classification/Autores/COMPRESSIVE STRENGTH info:eu-repo/classification/Autores/DEBOND DAMAGES info:eu-repo/classification/Autores/FRACTURE MECHANICS info:eu-repo/classification/Autores/SANDWICH STRUCTURES info:eu-repo/classification/cti/7 info:eu-repo/classification/cti/7 |
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info:eu-repo/classification/Autores/BUCKLING info:eu-repo/classification/Autores/COLUMNS info:eu-repo/classification/Autores/COMPRESSIVE STRENGTH info:eu-repo/classification/Autores/DEBOND DAMAGES info:eu-repo/classification/Autores/FRACTURE MECHANICS info:eu-repo/classification/Autores/SANDWICH STRUCTURES info:eu-repo/classification/cti/7 info:eu-repo/classification/cti/7 info:eu-repo/classification/Autores/BUCKLING info:eu-repo/classification/Autores/COLUMNS info:eu-repo/classification/Autores/COMPRESSIVE STRENGTH info:eu-repo/classification/Autores/DEBOND DAMAGES info:eu-repo/classification/Autores/FRACTURE MECHANICS info:eu-repo/classification/Autores/SANDWICH STRUCTURES info:eu-repo/classification/cti/7 info:eu-repo/classification/cti/7 FRANCIS AVILES CETINA Failure investigation of debonded sandwich columns: An experimental and numerical study |
description |
Failure of compression loaded sandwich columns with an implanted through-width face/core debond is examined. Compression tests were conducted on sandwich columns containing implemented face/core debonds. The strains and out-of-plane displacements of the debonded region were monitored using the digital image correlation technique. Finite element analysis and linear elastic fracture mechanics were employed to predict the critical instability load and compression strength of the columns. Energy release rate and mode mixity were determined and compared to fracture toughness data obtained from TSD (tilted sandwich debond) tests, predicting propagation loads. Instability loads of the columns were determined from the out-of-plane displacements using the Southwell method. The finite element estimates of debond propagation and instability loads are in overall agreement with experimental results. The proximity of the debond propagation loads and the instability loads shows the importance of instability in connection with the debond propagation of sandwich columns. |
format |
info:eu-repo/semantics/article |
topic_facet |
info:eu-repo/classification/Autores/BUCKLING info:eu-repo/classification/Autores/COLUMNS info:eu-repo/classification/Autores/COMPRESSIVE STRENGTH info:eu-repo/classification/Autores/DEBOND DAMAGES info:eu-repo/classification/Autores/FRACTURE MECHANICS info:eu-repo/classification/Autores/SANDWICH STRUCTURES info:eu-repo/classification/cti/7 info:eu-repo/classification/cti/7 |
author |
FRANCIS AVILES CETINA |
author_facet |
FRANCIS AVILES CETINA |
author_sort |
FRANCIS AVILES CETINA |
title |
Failure investigation of debonded sandwich columns: An experimental and numerical study |
title_short |
Failure investigation of debonded sandwich columns: An experimental and numerical study |
title_full |
Failure investigation of debonded sandwich columns: An experimental and numerical study |
title_fullStr |
Failure investigation of debonded sandwich columns: An experimental and numerical study |
title_full_unstemmed |
Failure investigation of debonded sandwich columns: An experimental and numerical study |
title_sort |
failure investigation of debonded sandwich columns: an experimental and numerical study |
url |
http://cicy.repositorioinstitucional.mx/jspui/handle/1003/780 |
work_keys_str_mv |
AT francisavilescetina failureinvestigationofdebondedsandwichcolumnsanexperimentalandnumericalstudy |
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1756089420099878912 |