Abstract
A simulation of a contact interaction of the indenter and inhomogeneous soft biological tissues is carried out. The soft tissue is modeled by the incompressible elastic body which contains structural inhomogeneities (spherical or longitudinal inclusions). The elastic moduli of inclusions are higher than the bulk soft tissue modulus. These inclusions may be considered, in particular, as the models of the pathological growths. The indenter has the form of a hollow hemisphere (shell). It is the model of the mechanoreceptor developed in [1] to study the mechanical properties of soft tissues. The hydrostatic pressure can be applied inside the shell. Based on the numerical analysis, the dependences of the contact area size, and contact pressure on penetration of the indenter into the sample for several values of the inclusion size, depth, its location, the ratio of the elastic moduli of inclusion and the surrounding material, but also for various values of hydrostatic pressure inside the shell were obtained. The possibility of an inverse problem solution for determining the mechanical properties of the inclusion, and its size by measuring the contact characteristics is discussed.
| Original language | English |
|---|---|
| Title of host publication | ICNPAA 2016 World Congress |
| Subtitle of host publication | 11th International Conference on Mathematical Problems in Engineering, Aerospace and Sciences |
| Editors | Seenith Sivasundaram |
| Publisher | American Institute of Physics Inc. |
| ISBN (Electronic) | 9780735414648 |
| DOIs | |
| Publication status | Published - 2017 Jan 27 |
| Event | 11th International Conference on Mathematical Problems in Engineering, Aerospace and Sciences, ICNPAA 2016 - La Rochelle, France Duration: 2016 Jul 4 → 2016 Jul 8 |
Publication series
| Name | AIP Conference Proceedings |
|---|---|
| Volume | 1798 |
| ISSN (Print) | 0094-243X |
| ISSN (Electronic) | 1551-7616 |
Other
| Other | 11th International Conference on Mathematical Problems in Engineering, Aerospace and Sciences, ICNPAA 2016 |
|---|---|
| Country | France |
| City | La Rochelle |
| Period | 16-07-04 → 16-07-08 |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
Cite this
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Modeling of indentation into inhomogeneous soft tissues. / Lyubicheva, A. N.; Goryacheva, I. G.; Dosaev, M. Z.; Su, Fong-chin.
ICNPAA 2016 World Congress: 11th International Conference on Mathematical Problems in Engineering, Aerospace and Sciences. ed. / Seenith Sivasundaram. American Institute of Physics Inc., 2017. 020092 (AIP Conference Proceedings; Vol. 1798).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - Modeling of indentation into inhomogeneous soft tissues
AU - Lyubicheva, A. N.
AU - Goryacheva, I. G.
AU - Dosaev, M. Z.
AU - Su, Fong-chin
PY - 2017/1/27
Y1 - 2017/1/27
N2 - A simulation of a contact interaction of the indenter and inhomogeneous soft biological tissues is carried out. The soft tissue is modeled by the incompressible elastic body which contains structural inhomogeneities (spherical or longitudinal inclusions). The elastic moduli of inclusions are higher than the bulk soft tissue modulus. These inclusions may be considered, in particular, as the models of the pathological growths. The indenter has the form of a hollow hemisphere (shell). It is the model of the mechanoreceptor developed in [1] to study the mechanical properties of soft tissues. The hydrostatic pressure can be applied inside the shell. Based on the numerical analysis, the dependences of the contact area size, and contact pressure on penetration of the indenter into the sample for several values of the inclusion size, depth, its location, the ratio of the elastic moduli of inclusion and the surrounding material, but also for various values of hydrostatic pressure inside the shell were obtained. The possibility of an inverse problem solution for determining the mechanical properties of the inclusion, and its size by measuring the contact characteristics is discussed.
AB - A simulation of a contact interaction of the indenter and inhomogeneous soft biological tissues is carried out. The soft tissue is modeled by the incompressible elastic body which contains structural inhomogeneities (spherical or longitudinal inclusions). The elastic moduli of inclusions are higher than the bulk soft tissue modulus. These inclusions may be considered, in particular, as the models of the pathological growths. The indenter has the form of a hollow hemisphere (shell). It is the model of the mechanoreceptor developed in [1] to study the mechanical properties of soft tissues. The hydrostatic pressure can be applied inside the shell. Based on the numerical analysis, the dependences of the contact area size, and contact pressure on penetration of the indenter into the sample for several values of the inclusion size, depth, its location, the ratio of the elastic moduli of inclusion and the surrounding material, but also for various values of hydrostatic pressure inside the shell were obtained. The possibility of an inverse problem solution for determining the mechanical properties of the inclusion, and its size by measuring the contact characteristics is discussed.
UR - http://www.scopus.com/inward/record.url?scp=85013665139&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85013665139&partnerID=8YFLogxK
U2 - 10.1063/1.4972684
DO - 10.1063/1.4972684
M3 - Conference contribution
T3 - AIP Conference Proceedings
BT - ICNPAA 2016 World Congress
A2 - Sivasundaram, Seenith
PB - American Institute of Physics Inc.
ER -