Mesoscopic mechanical analysis of filled elastomer with 3D-finite element analysis and transmission electron microtomography

Keizo Akutagawa, Ken Yamaouchi, Atsushi Yamamoto, Hisashi Heouri, Hiroshi Jinnai, Yuki Shinbori

Research output: Contribution to journalArticlepeer-review

47 Citations (Scopus)

Abstract

Analysis of deformation of the filled elastomer in mesoscopic scale was investigated with 3-D FEM (Finite Element Analysis). Combination of 3-D TEMT (Transmission Electron Micro Tomography) and Voxel-FEM enables us to reconstruct mesoscopic scale 3-D image and calculate 3-D strain distribution. To the first approximation, the calculated stressstrain behavior shows a good agreement with the experimental results. The strain concentration over 200% can be seen between carbon black aggregates, even if the overall strain is only 15%. The rubber occluded by carbon black aggregates can also be observed. The virtual rubber model constructed with perfectly dispersed fillers was also calculated. This shows less overall stress than that of the actual filled model reconstructed with 3-D TEMT image. It is found that the occluded rubber can behave as a hard domain and is an important factor of the filler reinforcement effect on rubber.

Original languageEnglish
Pages (from-to)182-189
Number of pages8
JournalRubber Chemistry and Technology
Volume81
Issue number2
DOIs
Publication statusPublished - 2008 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • Polymers and Plastics
  • Materials Chemistry

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