缩进
抛光
材料科学
沟槽(工程)
形状记忆聚合物
有限元法
曲面(拓扑)
复合材料
形状记忆合金
热固性聚合物
聚合物
聚苯乙烯
摩擦系数
几何学
结构工程
冶金
数学
工程类
作者
A. Prasad,Weimin Huang
标识
DOI:10.1142/s0218625x22500913
摘要
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.
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