Poroelastic relaxation indentation of thin layers of gels

Yuhang Hu; Edwin P. Chan; Joost J. Vlassak; Zhigang Suo

doi:10.1063/1.3647758

Poroelastic relaxation indentation of thin layers of gels

Yuhang Hu
, Edwin P. Chan
, Joost J. Vlassak
, Zhigang Suo

Research output: Contribution to journal › Article › peer-review

69 Scopus citations

Abstract

We develop a method of poroelastic relaxation indentation (PRI) to characterize thin layers of gels. The solution to the time-dependent boundary-value problem is obtained in a remarkably simple form, so that the force-relaxation curve obtained by indenting a gel readily determines all the poroelastic constants of the gel-the shear modulus, Poisson's ratio, and the effective diffusivity. The method is demonstrated with a layer of polydimethylsiloxane immersed in heptane.

Original language	English
Article number	086103
Journal	Journal of Applied Physics
Volume	110
Issue number	8
DOIs	https://doi.org/10.1063/1.3647758
State	Published - 15 Oct 2011
Externally published	Yes

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10.1063/1.3647758

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title = "Poroelastic relaxation indentation of thin layers of gels",

abstract = "We develop a method of poroelastic relaxation indentation (PRI) to characterize thin layers of gels. The solution to the time-dependent boundary-value problem is obtained in a remarkably simple form, so that the force-relaxation curve obtained by indenting a gel readily determines all the poroelastic constants of the gel-the shear modulus, Poisson's ratio, and the effective diffusivity. The method is demonstrated with a layer of polydimethylsiloxane immersed in heptane.",

author = "Yuhang Hu and Chan, \{Edwin P.\} and Vlassak, \{Joost J.\} and Zhigang Suo",

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T1 - Poroelastic relaxation indentation of thin layers of gels

AU - Hu, Yuhang

AU - Chan, Edwin P.

AU - Vlassak, Joost J.

AU - Suo, Zhigang

PY - 2011/10/15

Y1 - 2011/10/15

N2 - We develop a method of poroelastic relaxation indentation (PRI) to characterize thin layers of gels. The solution to the time-dependent boundary-value problem is obtained in a remarkably simple form, so that the force-relaxation curve obtained by indenting a gel readily determines all the poroelastic constants of the gel-the shear modulus, Poisson's ratio, and the effective diffusivity. The method is demonstrated with a layer of polydimethylsiloxane immersed in heptane.

AB - We develop a method of poroelastic relaxation indentation (PRI) to characterize thin layers of gels. The solution to the time-dependent boundary-value problem is obtained in a remarkably simple form, so that the force-relaxation curve obtained by indenting a gel readily determines all the poroelastic constants of the gel-the shear modulus, Poisson's ratio, and the effective diffusivity. The method is demonstrated with a layer of polydimethylsiloxane immersed in heptane.

UR - https://www.scopus.com/pages/publications/80655131984

U2 - 10.1063/1.3647758

DO - 10.1063/1.3647758

M3 - 文章

AN - SCOPUS:80655131984

SN - 0021-8979

VL - 110

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 8

M1 - 086103

ER -

Poroelastic relaxation indentation of thin layers of gels

Abstract

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