Table of Contents
Materials, Volume 11, Issue 2 (February 2018)
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Cover Story (view full-size image) Metal–elastomer interfacial systems—often encountered in stretchable electronics—demonstrate [...] Read more. Metal–elastomer interfacial systems—often encountered in stretchable electronics—demonstrate remarkably high interface fracture toughness values. This paper unravels the underlying dissipative mechanisms through a systematic numerical/experimental multi-scale approach. In particular, the experimental studies conclusively reveal the essential role of fibrillation mechanisms at the micro-meter scale during the metal–elastomer delamination process. Micro-scale numerical analyses on single and multiple fibrils show that the dynamic release of the stored elastic energy by multiple fibril fracture—including the interaction with the adjacent deforming bulk elastomer and its highly nonlinear behaviour—provide a mechanistic understanding of the high work-of-separation. View this paper