Journal
CHEMICAL ENGINEERING SCIENCE
Volume 66, Issue 9, Pages 1835-1843Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ces.2011.01.018
Keywords
Plasticity; Yield stress; Computation; Polymers; Microcapsule; Finite element modelling
Categories
Funding
- Engineering and Physical Sciences Research Council (EPRSC), UK [EP/F068395/1]
- AWM/ERDF
- Engineering and Physical Sciences Research Council [EP/F068395/1] Funding Source: researchfish
- EPSRC [EP/F068395/1] Funding Source: UKRI
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Finite elements modelling(FEM) is used to simulate the compression response of core-shell microcapsules with an elastic-perfectly plastic wall material. Three methods are presented to calculate the yield stress of the material from experimental compression force curves. Dry melamine-formaldehyde microcapsules compressed using a micromanipulation technique were used as experimental validation. The calculated yield stress with the different methods all agreed within sample variability, at similar to 130 MPa. (C) 2011 Elsevier Ltd. All rights reserved.
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