Experimental derivation of stiffness matrix of sheet metal joint

The thesis presents the study on the three-dimensional experimental derivation stiffness matrix of sheet metal joint substructure based on the basic principle of finite element method (FEM). Normally in FEM, the material properties of a complete structural system can be represented by Young‟s modulu...

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Main Author:	Yusoff, Abdul Hafiez
Format:	Thesis
Language:	English
Published:	2013
Subjects:	Finite element method Sheet-metal
Online Access:	http://psasir.upm.edu.my/id/eprint/56059/1/FK%202013%2080RR.pdf
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id	my-upm-ir.56059
record_format	uketd_dc
spelling	my-upm-ir.560592017-07-20T02:43:43Z Experimental derivation of stiffness matrix of sheet metal joint 2013-03 Yusoff, Abdul Hafiez The thesis presents the study on the three-dimensional experimental derivation stiffness matrix of sheet metal joint substructure based on the basic principle of finite element method (FEM). Normally in FEM, the material properties of a complete structural system can be represented by Young‟s modulus, Poisson‟s ratio, density, surface area and etc but if the structure deflection influence coefficients or stiffness matrix are known, the behavior of complete structural system can be defined. One of user defined element existed in NASTRAN that rarely used is general (GENEL) element, the GENEL entry is used to define general elements whose material properties are defined in terms of deflection influence coefficients or stiffness matrix which can be connected between any number of grid points. A systematic approach of stiffness matrix extraction of a sheet metal joint has been successfully studied and developed. The experimental stiffness matrix which represents the actual behavior of the substructure is then entered into NASTRAN as a new element, GENEL. Comparison of results between the experimental and the finite element analysis is carried to validate the method employed. Excellent agreement with the experimental results has been observed which confirms the accuracy of the approached employed. The methodology of extraction stiffness coefficients experimentally has also been successfully developed on the basis of the direct stiffness method. Finite element method Sheet-metal 2013-03 Thesis http://psasir.upm.edu.my/id/eprint/56059/ http://psasir.upm.edu.my/id/eprint/56059/1/FK%202013%2080RR.pdf application/pdf en public masters Universiti Putra Malaysia Finite element method Sheet-metal
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English
topic	Finite element method Sheet-metal
spellingShingle	Finite element method Sheet-metal Yusoff, Abdul Hafiez Experimental derivation of stiffness matrix of sheet metal joint
description	The thesis presents the study on the three-dimensional experimental derivation stiffness matrix of sheet metal joint substructure based on the basic principle of finite element method (FEM). Normally in FEM, the material properties of a complete structural system can be represented by Young‟s modulus, Poisson‟s ratio, density, surface area and etc but if the structure deflection influence coefficients or stiffness matrix are known, the behavior of complete structural system can be defined. One of user defined element existed in NASTRAN that rarely used is general (GENEL) element, the GENEL entry is used to define general elements whose material properties are defined in terms of deflection influence coefficients or stiffness matrix which can be connected between any number of grid points. A systematic approach of stiffness matrix extraction of a sheet metal joint has been successfully studied and developed. The experimental stiffness matrix which represents the actual behavior of the substructure is then entered into NASTRAN as a new element, GENEL. Comparison of results between the experimental and the finite element analysis is carried to validate the method employed. Excellent agreement with the experimental results has been observed which confirms the accuracy of the approached employed. The methodology of extraction stiffness coefficients experimentally has also been successfully developed on the basis of the direct stiffness method.
format	Thesis
qualification_level	Master's degree
author	Yusoff, Abdul Hafiez
author_facet	Yusoff, Abdul Hafiez
author_sort	Yusoff, Abdul Hafiez
title	Experimental derivation of stiffness matrix of sheet metal joint
title_short	Experimental derivation of stiffness matrix of sheet metal joint
title_full	Experimental derivation of stiffness matrix of sheet metal joint
title_fullStr	Experimental derivation of stiffness matrix of sheet metal joint
title_full_unstemmed	Experimental derivation of stiffness matrix of sheet metal joint
title_sort	experimental derivation of stiffness matrix of sheet metal joint
granting_institution	Universiti Putra Malaysia
publishDate	2013
url	http://psasir.upm.edu.my/id/eprint/56059/1/FK%202013%2080RR.pdf
_version_	1747812113493000192

Experimental derivation of stiffness matrix of sheet metal joint

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