학술논문
Time-dependent adhesion of a polydimethylsiloxane (PDMS) elastomer film to a flat indenter tip characterized using a cohesive-zone law.
Document Type
Article
Author
Source
Subject
*ADHESION
*POLYDIMETHYLSILOXANE
*INDENTATION (Materials science)
*THIN films
*COMPOSITE materials
*VISCOELASTIC materials
*FINITE element method
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Language
ISSN
0950-0839
Abstract
The work of adhesion between a polydimethylsiloxane (PDMS) elastomer film and a flat diamond tip was measured by instrumented indentation. The results showed that the apparent work of adhesion between the tip and the PDMS film increases with increasing dwell time and retreating velocity; on the other hand, the indentation depth has no significant effect on adhesion. The indentation experiment was analysed with viscoelastic finite element simulations with rate-dependent cohesive elements, from which the time evolution of adhesion was quantitatively implemented into a rate-dependent cohesive-zone law. [ABSTRACT FROM AUTHOR]