Poroelastic Indentation

Post-doctoral researcher Matteo Galli’s work on poroelastic indentation analysis, including nanoindentation analysis, has been published in CMES, Computer Modeling in Engineering and Sciences. The article appears in a special issue of CMES focussing on contact mechanics, and edited by Prof. Selvadurai of McGill University. The paper describes an algorithm for fast analysis of indentation curves, with output parameters including the hydraulic permeability. This work eliminates the need to run reverse-FE models of individual indentation creep load-time plots, and allows for permeability mapping in short time-frames along with modulus mapping. Further, a universal database serves materials with a wide range of material properties, and the utility of the method is demonstrated for materials with kPa (hydrogel) to GPa (bone) elastic modulus values.


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