Numerical model for prediction of wrinkling behavior on a thin-membrane structure

One of the key aspects of developing gossamer space structures is the prediction of wrinkles and slacks in the material. Wrinkles, which essentially refer to elastic buckling, have been analyzed numerically using finite element methods (FEMs) with shell elements, but at a high computational cost. Th...

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Autores principales:	Shoko ARITA, Takumi OKUMIYA, Yasuyuki MIYAZAKI
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2014
Materias:	membrane wrinkle slack prediction fem Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/acba4f44f9ac44bb86f51a49eeb1d392
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spelling	oai:doaj.org-article:acba4f44f9ac44bb86f51a49eeb1d3922021-11-26T06:09:53ZNumerical model for prediction of wrinkling behavior on a thin-membrane structure2187-974510.1299/mej.2014se0041https://doaj.org/article/acba4f44f9ac44bb86f51a49eeb1d3922014-08-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/1/4/1_2014se0041/_pdf/-char/enhttps://doaj.org/toc/2187-9745One of the key aspects of developing gossamer space structures is the prediction of wrinkles and slacks in the material. Wrinkles, which essentially refer to elastic buckling, have been analyzed numerically using finite element methods (FEMs) with shell elements, but at a high computational cost. Therefore, membrane elements, which ignore bending stiffness and consider only in-plane stress, have been employed to reduce the computational cost. However, the compressive stiffness of the membrane cannot be ignored when predicting wrinkle regions precisely in membrane structures. Some previous studies have employed membrane elements considering small, constant non-zero values of compressive stiffness; these membrane elements can predict the distribution of principal stress as the wrinkle regions. However, none of these traditional methods can determine the value of compressive stiffness, and some parts of the principal stress distribution in slack areas do not correspond to the actual phenomenon. Therefore, in order to determine compressive stiffness logically and uniquely, we propose a new numerical calculation model, the modified-stiffness reduction model (Mod-SRM), which is based on the stretchable elastic theory. Moreover, by comparison with the other FEM models, we confirm that Mod-SRM represents the slack region more accurately than the traditional models.Shoko ARITATakumi OKUMIYAYasuyuki MIYAZAKIThe Japan Society of Mechanical EngineersarticlemembranewrinkleslackpredictionfemMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 1, Iss 4, Pp SE0041-SE0041 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	membrane wrinkle slack prediction fem Mechanical engineering and machinery TJ1-1570
spellingShingle	membrane wrinkle slack prediction fem Mechanical engineering and machinery TJ1-1570 Shoko ARITA Takumi OKUMIYA Yasuyuki MIYAZAKI Numerical model for prediction of wrinkling behavior on a thin-membrane structure
description	One of the key aspects of developing gossamer space structures is the prediction of wrinkles and slacks in the material. Wrinkles, which essentially refer to elastic buckling, have been analyzed numerically using finite element methods (FEMs) with shell elements, but at a high computational cost. Therefore, membrane elements, which ignore bending stiffness and consider only in-plane stress, have been employed to reduce the computational cost. However, the compressive stiffness of the membrane cannot be ignored when predicting wrinkle regions precisely in membrane structures. Some previous studies have employed membrane elements considering small, constant non-zero values of compressive stiffness; these membrane elements can predict the distribution of principal stress as the wrinkle regions. However, none of these traditional methods can determine the value of compressive stiffness, and some parts of the principal stress distribution in slack areas do not correspond to the actual phenomenon. Therefore, in order to determine compressive stiffness logically and uniquely, we propose a new numerical calculation model, the modified-stiffness reduction model (Mod-SRM), which is based on the stretchable elastic theory. Moreover, by comparison with the other FEM models, we confirm that Mod-SRM represents the slack region more accurately than the traditional models.
format	article
author	Shoko ARITA Takumi OKUMIYA Yasuyuki MIYAZAKI
author_facet	Shoko ARITA Takumi OKUMIYA Yasuyuki MIYAZAKI
author_sort	Shoko ARITA
title	Numerical model for prediction of wrinkling behavior on a thin-membrane structure
title_short	Numerical model for prediction of wrinkling behavior on a thin-membrane structure
title_full	Numerical model for prediction of wrinkling behavior on a thin-membrane structure
title_fullStr	Numerical model for prediction of wrinkling behavior on a thin-membrane structure
title_full_unstemmed	Numerical model for prediction of wrinkling behavior on a thin-membrane structure
title_sort	numerical model for prediction of wrinkling behavior on a thin-membrane structure
publisher	The Japan Society of Mechanical Engineers
publishDate	2014
url	https://doaj.org/article/acba4f44f9ac44bb86f51a49eeb1d392
work_keys_str_mv	AT shokoarita numericalmodelforpredictionofwrinklingbehavioronathinmembranestructure AT takumiokumiya numericalmodelforpredictionofwrinklingbehavioronathinmembranestructure AT yasuyukimiyazaki numericalmodelforpredictionofwrinklingbehavioronathinmembranestructure
_version_	1718409800676540416

Numerical model for prediction of wrinkling behavior on a thin-membrane structure

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