Numerical Analysis of the Anisotropic Stiffness of a Thin Aluminium Foil in Multiple Material directions Based on Experiments

Wureguli Reheman, Per Ståhle, Eskil Andreasson, Sharon Kao-Walter

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

Abstract

Numerical analysis have been performed on tensile test experiment data toevaluated the performances of a 9 microns thick aluminium foil. The identification of theanisotropic material properties is based on tensile tests performed in 11 different anglesfrom 0◦to 90◦from the rolling direction. By least square fitting and extrapolation tozero load the elastic modulus is, as opposed to the general belief, proven to be very closeto the expected bulk values for this specific material. The elastic modulus is shown tobe anisotropic with a stiffness variation of aound 15%. Minimum stiffness is obtained inaround 45◦from the rolling direction
Original languageEnglish
Title of host publicationProceedings of NSCM 30
Subtitle of host publicationThe 30th Nordic Seminar on Computational Mechanics 25-27 October 2017
Pages175-179
Number of pages4
Publication statusPublished - 2017
EventNordic Conference on Computational Mechanics - Copenhagen, Denmark
Duration: 2017 Oct 252017 Oct 27
Conference number: 30

Conference

ConferenceNordic Conference on Computational Mechanics
Abbreviated titleNCM30
Country/TerritoryDenmark
CityCopenhagen
Period2017/10/252017/10/27

Subject classification (UKÄ)

  • Physical Sciences
  • Mathematics
  • Metallurgy and Metallic Materials

Keywords

  • Thin foil
  • Aluminium Alloy
  • Anisotropy
  • Symmetry plane
  • oung’s modulus

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