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Title of Journal: Comput Mech

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Abbravation: Computational Mechanics

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Springer-Verlag

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DOI

10.1007/s10688-012-0007-3

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1432-0924

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Adaptive multianalysis strategy for contact probl

Authors: L Champaney P A Boucard S Guinard
Publish Date: 2007/08/29
Volume: 42, Issue: 2, Pages: 305-315
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Abstract

The objective of the work presented here is to develop an efficient strategy for the parametric analysis of bolted joints designed for aerospace applications These joints are used in elastic structural assemblies with local nonlinearities such as unilateral contact with friction under quasistatic loading Our approach is based on a decomposition of an assembly into substructures representing the parts and interfaces representing the connections The problem within each substructure is solved by the finite element method while an iterative scheme based on the LATIN method Ladevèze in Nonlinear computational structural mechanics—new approaches and nonincremental methods of calculation 1999 is used for the global resolution The proposed strategy consists in calculating response surfaces Rajashekhar and Ellingwood in Struct Saf 12205–220 1993 such that each point of a surface is associated with a design configuration Each design configuration corresponds to a set of values of all the variable parameters friction coefficients prestresses which are introduced into the mechanical analysis Here instead of carrying out a full calculation for each point of the surface we propose to use the capabilities of the LATIN method and reutilize the solution of one problem for one set of parameters in order to solve similar problems for the other sets of parameters Boucard and Champaney in Int J Numer Methods Eng 571259–1281 2003 The strategy is adaptive in the sense that it takes into account the results of the previous calculations The method presented can be used for several types of nonlinear problems requiring multiple analyses for example it has already been used for structural identification Allix and Vidal in Comput Methods Appl Mech Eng 1912727–2758 2001


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  7. A high order hybrid finite element method applied to the solution of electromagnetic wave scattering problems in the time domain
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  15. Erratum to: Modeling a smooth elastic–inelastic transition with a strongly objective numerical integrator needing no iteration
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