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Title: Shape control in surface patterning atop shape memory polymers via indentation, polishing and shape recovery
Authors: Prasad, Ayush
Huang, Wei Min
Keywords: Engineering::Mechanical engineering
Issue Date: 2022
Source: Prasad, A. & Huang, W. M. (2022). Shape control in surface patterning atop shape memory polymers via indentation, polishing and shape recovery. Surface Review and Letters, 29(7).
Journal: Surface Review and Letters 
Abstract: This study aims to analyze the surface pattern created on a shape memory polymer (SMP; thermoset polystyrene) after indentation by a spherical indenter, polishing off the top surface and recovery through the shape memory effect (SME) using the finite element method (FEM) and other computational techniques. Depending on how to polish, three different types of patterns are generated, namely the lens-type protrusion, flat-top protrusion and groove. The actual dimensions of the surface patterns are determined by the polishing depth and the coefficient of friction during indentation. The influence of the latter can be fixed if the coefficient of friction is over a certain value. All the lengths in this study are normalized with the respective indent depth. Hence the results can be scaled. The trends obtained here should be applicable to other shape memory polymers.
ISSN: 0218-625X
DOI: 10.1142/S0218625X22500913
Schools: School of Mechanical and Aerospace Engineering 
Rights: Electronic version of an article published as Surface Review and Letters, Vol. 29, No. 7 (2022) 2250091-1 to 2250091-9, @ copyright World Scientific Publishing Company
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MAE Journal Articles

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