Failure-mode transition in transient polymer networks with particle-based simulations
J. Sprakel (Wageningen University & Research, Dutch Polymer Institute)
E. Spruijt (Wageningen University & Research)
J. Van Der Gucht (Wageningen University & Research)
J. T. Padding (University of Twente)
W. J. Briels (University of Twente)
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Abstract
Transient polymer networks are known to undergo a wide variety of viscoelastic flow instabilities. In this paper we investigate two of these flow failure modes: shear banding and melt fracture. Using particle-based simulations we reveal a transition from gradient banding to fracture in transient polymer networks with reversible associative nodes. We discuss the failure-mode transition on the basis of an energetic and a kinetic approach to fracturing in soft materials.
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