2017/10/05 by Mohammad Tehrani, Tehrani, Mohammad, Mohammad Hossein Moshaei +3 · 1 citation
Engineering · Materials Science · #Applied Physics (physics.app-ph) #Elasticity and Material Modeling #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #Polymer Nanocomposites and Properties #Polymer composites and self-healing #Soft Condensed Matter (cond-mat.soft)
paper · pdf · doi:10.48550/arxiv.1710.01846
openalex publication_date 2017/10/05 · openalex created_date 2017/10/20 · openalex updated_date 2026/07/28
A priori assumption in micromechanical analysis of polymeric networks is that the constitutive polymer strands are of equal length. Monodisperse distribution of strands, however, is merely a simplifying assumption. In this paper, we relax this assumption and consider a vulcanized network with a broad distribution of strand length. In the light of this model, we predict the damage initiation and stress-stretch dependency in a filled polymer network with random internal structures. The degradation of network mechanical behavior is assumed to be controlled by the adhesive failure of the strands adsorbed to the filler surface. We show that the short adsorbed strands are the culprits for damage initiation and their finite extensibility is a key determinant of mechanical strength.