Precise measurements of capsule mechanical properties using indentation

Joseph D. Berry, Srinivas Mettu, Raymond R. Dagastine

Research output: Contribution to journalArticlepeer-review

35 Scopus citations


Application of elastic theory to experimental data of capsule and particle compression under-predicts the value of material properties such as the Young's modulus by up to 100% when the effect of the rigid substrate is neglected, as is commonly done in the literature. Results of numerical simulations, spanning the range from thin-shelled capsules to solid particles, are presented in terms of correction factors that account for the substrate. In addition, the scaling relationship between indentation force and displacement is characterised for arbitrary shell thicknesses and indenter radii.

Original languageBritish English
Pages (from-to)1943-1947
Number of pages5
JournalSoft Matter
Issue number10
StatePublished - 2017


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