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. © 2009 The Royal Society of Chemistry.
Sprakel, J., Spruijt, E., Gucht, van der, J., Padding, J. T., & Briels, W. J. (2009). Failure-mode transition in transient polymer networks with particle-based simulations. Soft Matter, 5(23), 4748-4756. https://doi.org/10.1039/b910425a