Discrete modeling of the crushing of nomex honeycomb core and application to impact and post-impact behavior of sandwich structures

In this chapter, an original method for modeling the behavior of sandwich structures during and after impact is proposed and validated. It is based on the demonstration that Nomex honeycomb behaves in a post-buckling mode very early and that compression forces are taken up by the corners or verti...

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Main Authors:	Castanie, Bruno, Aminanda, Yulfian, Barrau, Jean-Jacques, Thevenet, Pascal
Format:	Book Chapter
Language:	English
Published:	Springer Science+Business Media Dordrecht 2012
Subjects:	T Technology (General) TJ Mechanical engineering and machinery
Online Access:	http://irep.iium.edu.my/34929/ http://irep.iium.edu.my/34929/ http://irep.iium.edu.my/34929/ http://irep.iium.edu.my/34929/1/final_article__springer_chpater_book.pdf

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spelling	iium-349292014-05-08T03:51:25Z http://irep.iium.edu.my/34929/ Discrete modeling of the crushing of nomex honeycomb core and application to impact and post-impact behavior of sandwich structures Castanie, Bruno Aminanda, Yulfian Barrau, Jean-Jacques Thevenet, Pascal T Technology (General) TJ Mechanical engineering and machinery In this chapter, an original method for modeling the behavior of sandwich structures during and after impact is proposed and validated. It is based on the demonstration that Nomex honeycomb behaves in a post-buckling mode very early and that compression forces are taken up by the corners or vertical edges of the honeycomb cells in the same way as they are in the stiffeners in aircraft structures. Thus it is possible to represent the honeycomb discretely by a grid of springs located at the six corners of hexagonal cells. This approach represents the phenomenon of indentation on honeycomb alone or on sandwiches very well. This approach provides an understanding of how the sandwich and the core behave under compression after impact. An original criterion based on a local core crush is tested and validated to compute the residual strength. To consider the bending response of sandwich structures, a multi-level approach is also proposed. Springer Science+Business Media Dordrecht 2012 Book Chapter PeerReviewed application/pdf en http://irep.iium.edu.my/34929/1/final_article__springer_chpater_book.pdf Castanie, Bruno and Aminanda, Yulfian and Barrau, Jean-Jacques and Thevenet, Pascal (2012) Discrete modeling of the crushing of nomex honeycomb core and application to impact and post-impact behavior of sandwich structures. In: Dynamic failure of composite and sandwich structures. Solid Mechanics and Its Applications, 192 (192). Springer Science+Business Media Dordrecht, Dordrecht Germany, pp. 427-489. ISBN 9789400753297 (O), 9789400753280 (P) http://link.springer.com/chapter/10.1007%2F978-94-007-5329-7_10 10.1007/978-94-007-5329-7_10
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	T Technology (General) TJ Mechanical engineering and machinery
spellingShingle	T Technology (General) TJ Mechanical engineering and machinery Castanie, Bruno Aminanda, Yulfian Barrau, Jean-Jacques Thevenet, Pascal Discrete modeling of the crushing of nomex honeycomb core and application to impact and post-impact behavior of sandwich structures
description	In this chapter, an original method for modeling the behavior of sandwich structures during and after impact is proposed and validated. It is based on the demonstration that Nomex honeycomb behaves in a post-buckling mode very early and that compression forces are taken up by the corners or vertical edges of the honeycomb cells in the same way as they are in the stiffeners in aircraft structures. Thus it is possible to represent the honeycomb discretely by a grid of springs located at the six corners of hexagonal cells. This approach represents the phenomenon of indentation on honeycomb alone or on sandwiches very well. This approach provides an understanding of how the sandwich and the core behave under compression after impact. An original criterion based on a local core crush is tested and validated to compute the residual strength. To consider the bending response of sandwich structures, a multi-level approach is also proposed.
format	Book Chapter
author	Castanie, Bruno Aminanda, Yulfian Barrau, Jean-Jacques Thevenet, Pascal
author_facet	Castanie, Bruno Aminanda, Yulfian Barrau, Jean-Jacques Thevenet, Pascal
author_sort	Castanie, Bruno
title	Discrete modeling of the crushing of nomex honeycomb core and application to impact and post-impact behavior of sandwich structures
title_short	Discrete modeling of the crushing of nomex honeycomb core and application to impact and post-impact behavior of sandwich structures
title_full	Discrete modeling of the crushing of nomex honeycomb core and application to impact and post-impact behavior of sandwich structures
title_fullStr	Discrete modeling of the crushing of nomex honeycomb core and application to impact and post-impact behavior of sandwich structures
title_full_unstemmed	Discrete modeling of the crushing of nomex honeycomb core and application to impact and post-impact behavior of sandwich structures
title_sort	discrete modeling of the crushing of nomex honeycomb core and application to impact and post-impact behavior of sandwich structures
publisher	Springer Science+Business Media Dordrecht
publishDate	2012
url	http://irep.iium.edu.my/34929/ http://irep.iium.edu.my/34929/ http://irep.iium.edu.my/34929/ http://irep.iium.edu.my/34929/1/final_article__springer_chpater_book.pdf
first_indexed	2023-09-18T20:50:13Z
last_indexed	2023-09-18T20:50:13Z
_version_	1777409944496111616

Discrete modeling of the crushing of nomex honeycomb core and application to impact and post-impact behavior of sandwich structures

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