Using indentation to characterize the poroelasticity of gels
Vlassak, Joost J.
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CitationHu, Yuhang, Xuanhe Zhao, Joost J. Vlassak, and Zhigang Suo. 2010. “Using Indentation to Characterize the Poroelasticity of Gels.” Applied Physics Letters 96 (12): 121904. https://doi.org/10.1063/1.3370354.
AbstractWhen an indenter is pressed into a gel to a fixed depth, the solvent in the gel migrates, and the force on the indenter relaxes. Within the theory of poroelasticity, the force relaxation curves for indenters of several types are obtained in a simple form, enabling indentation to be used with ease as a method for determining the elastic constants and permeability of the gel. The method is demonstrated with a conical indenter on an alginate hydrogel.
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