Prediction of anisotropic behavior of nano/micro composite based on damage mechanics with cell modeling

Dock Jin Lee, Young Jin Kim, Moon Ki Kim, Jae Boong Choi, Yoon Suk Chang*, Wing Kam Liu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

New advanced composite materials have recently been of great interest. Especially, many researchers have studied on nano/micro composites based on matrix filled with nano-particles, nano-tubes, nano-wires and so forth, which have outstanding characteristics on thermal, electrical, optical, chemical and mechanical properties. Therefore, the need of numerical approach for design and development of the advanced materials has been recognized. In this paper, finite element analysis based on multi-resolution continuum theory is carried out to predict the anisotropic behavior of nano/micro composites based on damage mechanics with a cell modeling. The cell modeling systematically evaluates constitutive relationships from microstructure of the composite material. Effects of plastic anisotropy on deformation behavior and damage evolution of nano/micro composite are investigated by using Hill's 48 yield function and also compared with those obtained from Gurson-Tvergaard-Needleman isotropic damage model based on von Mises yield function.

Original languageEnglish (US)
Pages (from-to)619-623
Number of pages5
JournalJournal of Nanoscience and Nanotechnology
Volume11
Issue number1
DOIs
StatePublished - Jan 2011

Keywords

  • Cell modeling
  • GTN damage model
  • Hill's 48 yield function
  • Nano/micro composite
  • Von Mises yield function

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics

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