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

Fingerprint

Indentation
Polymers
Experiments
Liquid crystal polymers
Polydimethylsiloxane
Elasticity
Testing

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

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
Alisafaei, F. ; Sanei, Seyed Hamid Reza ; Han, Chung Souk. / Length scale dependent deformation in polymers. ASME 2012 International Mechanical Engineering Congress and Exposition, IMECE 2012. PARTS A AND B. ed. 2012. pp. 1053-1057 (ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE); PARTS A AND B).
@inproceedings{7192ffec180c42e4bcce6bca24f2fdd4,
title = "Length scale dependent deformation in polymers",
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.",
author = "F. Alisafaei and Sanei, {Seyed Hamid Reza} and Han, {Chung Souk}",
year = "2012",
month = "12",
day = "1",
doi = "10.1115/IMECE2012-88060",
language = "English (US)",
isbn = "9780791845257",
series = "ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)",
number = "PARTS A AND B",
pages = "1053--1057",
booktitle = "ASME 2012 International Mechanical Engineering Congress and Exposition, IMECE 2012",
edition = "PARTS A AND B",

}

Alisafaei, F, Sanei, SHR & Han, CS 2012, Length scale dependent deformation in polymers. in ASME 2012 International Mechanical Engineering Congress and Exposition, IMECE 2012. PARTS A AND B edn, ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE), no. PARTS A AND B, vol. 9, pp. 1053-1057, ASME 2012 International Mechanical Engineering Congress and Exposition, IMECE 2012, Houston, TX, United States, 11/9/12. https://doi.org/10.1115/IMECE2012-88060

Length scale dependent deformation in polymers. / Alisafaei, F.; Sanei, Seyed Hamid Reza; Han, Chung Souk.

ASME 2012 International Mechanical Engineering Congress and Exposition, IMECE 2012. PARTS A AND B. ed. 2012. p. 1053-1057 (ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE); Vol. 9, No. PARTS A AND B).

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

TY - GEN

T1 - Length scale dependent deformation in polymers

AU - Alisafaei, F.

AU - Sanei, Seyed Hamid Reza

AU - Han, Chung Souk

PY - 2012/12/1

Y1 - 2012/12/1

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=84887281761&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84887281761&partnerID=8YFLogxK

U2 - 10.1115/IMECE2012-88060

DO - 10.1115/IMECE2012-88060

M3 - Conference contribution

AN - SCOPUS:84887281761

SN - 9780791845257

T3 - ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)

SP - 1053

EP - 1057

BT - ASME 2012 International Mechanical Engineering Congress and Exposition, IMECE 2012

ER -

Alisafaei F, Sanei SHR, Han CS. Length scale dependent deformation in polymers. In ASME 2012 International Mechanical Engineering Congress and Exposition, IMECE 2012. PARTS A AND B ed. 2012. p. 1053-1057. (ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE); PARTS A AND B). https://doi.org/10.1115/IMECE2012-88060