Interface shape design of multi-material structures for delamination strength

This paper deals with interface shape optimum design of multi-material structures for the delamination strength problem. The optimum design problem is formulated as a non-parametric shape optimization problem in which the interface variation in the normal direction is considered as a design variable...

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Autores principales:	Yang LIU, Daisuke MATSUNAKA, Masatoshi SHIMODA, Yoji SHIBUTANI
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2016
Materias:	multi-material structures joint strength delamination function interface shape optimum design Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/59047cc3ea5d41bb93304044488b9b98
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spelling	oai:doaj.org-article:59047cc3ea5d41bb93304044488b9b982021-11-26T06:35:12ZInterface shape design of multi-material structures for delamination strength2187-974510.1299/mej.15-00360https://doaj.org/article/59047cc3ea5d41bb93304044488b9b982016-01-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/3/1/3_15-00360/_pdf/-char/enhttps://doaj.org/toc/2187-9745This paper deals with interface shape optimum design of multi-material structures for the delamination strength problem. The optimum design problem is formulated as a non-parametric shape optimization problem in which the interface variation in the normal direction is considered as a design variable. The maximum value of a delamination function, an index of the delamination strength, is defined as an objective function subject to a volume constraint. The shape sensitivity, called shape gradient function, is derived by using the material derivative method and the adjoint variable method, and is applied to the H1 gradient method to determine the optimal interface shape. With this method, the maximum value of the delamination function can be minimized while the smooth optimal interface shape can be obtained without any shape design parametrization. Several interface shape design examples are presented to verify the validity and practical utility of the proposed method.Yang LIUDaisuke MATSUNAKAMasatoshi SHIMODAYoji SHIBUTANIThe Japan Society of Mechanical Engineersarticlemulti-material structuresjoint strengthdelamination functioninterface shapeoptimum designMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 3, Iss 1, Pp 15-00360-15-00360 (2016)
institution	DOAJ
collection	DOAJ
language	EN
topic	multi-material structures joint strength delamination function interface shape optimum design Mechanical engineering and machinery TJ1-1570
spellingShingle	multi-material structures joint strength delamination function interface shape optimum design Mechanical engineering and machinery TJ1-1570 Yang LIU Daisuke MATSUNAKA Masatoshi SHIMODA Yoji SHIBUTANI Interface shape design of multi-material structures for delamination strength
description	This paper deals with interface shape optimum design of multi-material structures for the delamination strength problem. The optimum design problem is formulated as a non-parametric shape optimization problem in which the interface variation in the normal direction is considered as a design variable. The maximum value of a delamination function, an index of the delamination strength, is defined as an objective function subject to a volume constraint. The shape sensitivity, called shape gradient function, is derived by using the material derivative method and the adjoint variable method, and is applied to the H1 gradient method to determine the optimal interface shape. With this method, the maximum value of the delamination function can be minimized while the smooth optimal interface shape can be obtained without any shape design parametrization. Several interface shape design examples are presented to verify the validity and practical utility of the proposed method.
format	article
author	Yang LIU Daisuke MATSUNAKA Masatoshi SHIMODA Yoji SHIBUTANI
author_facet	Yang LIU Daisuke MATSUNAKA Masatoshi SHIMODA Yoji SHIBUTANI
author_sort	Yang LIU
title	Interface shape design of multi-material structures for delamination strength
title_short	Interface shape design of multi-material structures for delamination strength
title_full	Interface shape design of multi-material structures for delamination strength
title_fullStr	Interface shape design of multi-material structures for delamination strength
title_full_unstemmed	Interface shape design of multi-material structures for delamination strength
title_sort	interface shape design of multi-material structures for delamination strength
publisher	The Japan Society of Mechanical Engineers
publishDate	2016
url	https://doaj.org/article/59047cc3ea5d41bb93304044488b9b98
work_keys_str_mv	AT yangliu interfaceshapedesignofmultimaterialstructuresfordelaminationstrength AT daisukematsunaka interfaceshapedesignofmultimaterialstructuresfordelaminationstrength AT masatoshishimoda interfaceshapedesignofmultimaterialstructuresfordelaminationstrength AT yojishibutani interfaceshapedesignofmultimaterialstructuresfordelaminationstrength
_version_	1718409777196826624

Interface shape design of multi-material structures for delamination strength

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