Length scale dependent deformation in polymers

F. Alisafaei, Seyed Hamid Reza Sanei, Chung Souk Han

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Length scale dependent deformation of polymers has been observed in different experiments including micro-beam bending and indentation tests. Here the length scale dependent deformation of polydimethylsiloxane is examined in indentation testing at length scales from microns down to hundreds of nanometers. Strong indentation size effects have been observed in these experiments which are rationalized with rotation gradients that can be related to Frank elasticity type molecular energies known from liquid crystal polymers. To support this notion additional experiments have been conducted where Berkovich and spherical indenter tips results have been compared with each other.

Original languageEnglish (US)
Title of host publicationASME 2012 International Mechanical Engineering Congress and Exposition, IMECE 2012
Pages1053-1057
Number of pages5
EditionPARTS A AND B
DOIs
StatePublished - Dec 1 2012
EventASME 2012 International Mechanical Engineering Congress and Exposition, IMECE 2012 - Houston, TX, United States
Duration: Nov 9 2012Nov 15 2012

Publication series

NameASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
NumberPARTS A AND B
Volume9

Other

OtherASME 2012 International Mechanical Engineering Congress and Exposition, IMECE 2012
CountryUnited States
CityHouston, TX
Period11/9/1211/15/12

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

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  • Cite this

    Alisafaei, F., Sanei, S. H. R., & Han, C. S. (2012). Length scale dependent deformation in polymers. In ASME 2012 International Mechanical Engineering Congress and Exposition, IMECE 2012 (PARTS A AND B ed., pp. 1053-1057). (ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE); Vol. 9, No. PARTS A AND B). https://doi.org/10.1115/IMECE2012-88060