1999/10/11 by Gary S. Grest, Mathias Puetz, Mathias Pütz +2 · 1 citation
Engineering · Materials Science · Physics and Astronomy · #Carbon Nanotubes in Composites #Elasticity and Material Modeling #Force Microscopy Techniques and Applications #cond-mat.mtrl-sci #cond-mat.soft
paper · pdf · doi:10.1016/s0022-3093(00)00224-6
9 pages, 3 figures, RevTeX
arxiv created 1999/10/11 · openalex publication_date 2000/09/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The non-linear stress-strain relation for crosslinked polymer networks is studied using molecular dynamics simulations. Previously we demonstrated the importance of trapped entanglements in determining the elastic and relaxational properties of networks. Here we present new results for the stress versus strain for both dry and swollen networks. Models which limit the fluctuations of the network strands like the tube model are shown to describe the stress for both elongation and compression. For swollen networks, the total modulus is found to decrease like (V0/V)2/3 and goes to the phantom model result only for short strand networks.