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linear Function Assignment

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Added on: 2023-06-19 12:51:49
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    Australia

un problème de mécanique régi par la forme faible variationnelle suivante :

for1-1687168871.jpg

où est une fonction test et U l'inconnue du problème.

Les conditions aux limites associées sont :

U(x=0)=0.1 etdu/dx(x=L)=2.5

Le maillage associé, donné figure ci-dessous, est composé de trois nauds et deux éléments finis linéaires.

for2-1687168861.jpg

Partic théorique:

  1. Déterminer les fonctions d'approximation linéaires N, et N? pour un élément fini à deux nœuds.
  2. Calculer la matrice élémentaire [K] et le vecteur élémentaire (f) associés à chacun des deux éléments.
  3. Assembler la matrice globale et le vecteur global des sollicitations.
  4. Ajouter les deux conditions aux limites et déterminer le système matriciel à résoudre,

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  • Uploaded By : Katthy Wills
  • Posted on : June 19th, 2023
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