Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Schematic of the parallel (upper bound) and series (lower bound) models of reinforcement indicating representations of the different morphologies that give rise to mechanical behavior bound by these two limits. The graph shows modulus (E; on a log scale) as a function of volume fraction. Modified from ref (142).
