Young’s modulus estimation of soft tissues by video tactile pneumatic sensor

M. M. Gubenko, I. G. Goryacheva, M. Z. Dosayev, A. V. Morozov, A. N. Lyubicheva, F. C. Su, C. H. Yeh, M. S. Ju

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

1 Citation (Scopus)

Abstract

An indentation technique is one of effective methods to determine the elastic modulus of materials using information about contact geometry, indenter shape and applied load. This paper presents a device and a method that allow us to estimate elastic modulus of soft materials through indentation by video tactile pneumatic sensor. The device is a sealed metal cylinder ending with a soft silicone shell of a semispherical shape with 5 mm radius. During penetration by the silicone tip into investigated material the measured parameters are contact radius and displacement of the central point of the shell. The contact interaction between hollow elastic semisphere and a sample is modeled using finite element method. The axisymmetric contact problem was solved in geometrically nonlinear formulation, as the large strains were observed in the tests. The linear elastic model was used to describe mechanical properties of the sensor head and the sample. The Young’s modulus of the soft tissue was estimated based on the experimental results and numerical calculations.

Original languageEnglish
Title of host publication1st Global Conference on Biomedical Engineering and 9th Asian-Pacific Conference on Medical and Biological Engineering
EditorsFong-Chin Su, Ming-Long Yeh, Shyh-Hau Wang
PublisherSpringer Verlag
Pages212-215
Number of pages4
ISBN (Electronic)9783319122618
Publication statusPublished - 2015 Jan 1
Event1st Global Conference on Biomedical Engineering, GCBME 2014 and 9th Asian-Pacific Conference on Medical and Biological Engineering, APCMBE 2014 - Tainan, Taiwan
Duration: 2014 Oct 92014 Oct 12

Publication series

NameIFMBE Proceedings
Volume47
ISSN (Print)1680-0737
ISSN (Electronic)1433-9277

Other

Other1st Global Conference on Biomedical Engineering, GCBME 2014 and 9th Asian-Pacific Conference on Medical and Biological Engineering, APCMBE 2014
CountryTaiwan
CityTainan
Period14-10-0914-10-12

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Biomedical Engineering

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