Phys. Rev. Lett. 89, 195501 (2002) [4 pages]Jamming under Tension in Polymer CrazesReceived 27 June 2002; published 16 October 2002 Molecular dynamics simulations are used to study a unique expanded jammed state. Tension transforms many glassy polymers from a dense glass to a network of fibrils and voids called a craze. Entanglements between polymers and interchain friction jam the system after a fixed increase in volume. As in dense jammed systems, the distribution of forces is exponential, but they are tensile rather than compressive. The broad distribution of forces has important implications for fibril breakdown and the ultimate strength of crazes. © 2002 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.89.195501
DOI:
10.1103/PhysRevLett.89.195501
PACS:
61.43.Fs, 62.20.Fe, 83.10.Rs
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