A study on stress-strain relation measurement for micro scale UV-curable polymer structure

UV-경화 폴리머 마이크로 구조물의 응력-변형률 관계 측정에 관한 연구

  • 정수정 (한국기계연구원 나노공정장비센터) ;
  • 김재현 (한국기계연구원 나노긍정장비센터) ;
  • 이학주 (한국기계연구원 나노공정장비센터) ;
  • 박상후 (한국과학기술원 기계공학과) ;
  • 양동열 (한국과학기술원 기계공학과)
  • Published : 2005.10.01

Abstract

In this study, we propose an advanced nanoindentaion test, Nano Pillar Compression Test (NPCT) to measure a stress-strain relation for micro scale polymer structures. Firstly, FEM analysis is performed to research behavior of micro polymer pillars in several specimen aspect ratios and different friction conditions between specimen and tip. Based on the FEM results, micro scale UV-curable polymer pillars are fabricated on a substrate by Nano Stereo Lithography (NSL). To measure their mechanical properties, uniaxial compression test is performed using nanoindentation apparatus with flat-ended diamond tip. In addition, the dependency of compression properties on loading condition and specimen size are discussed.

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