Europhys. Lett.
Volume 67, Number 3, August 2004
Page(s) 470 - 476
Section Interdisciplinary physics and related areas of science and technology
Published online 01 July 2004
Europhys. Lett., 67 (3), pp. 470-476 (2004)
DOI: 10.1209/epl/i2003-10292-x

Toughness of double elastic networks

K. Okumura

Department of Physics, Graduate School of Humanities and Sciences Ochanomizu University - 2-1-1, Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan

(Received 5 December 2003; accepted in final form 19 May 2004)

We consider isotropic composites comprising of soft and hard elastic networks. We examine the minimum elastic model of purely elastic, intertwined but energetically independent networks. We obtain toughness enhancement factors in various situations, which may provide guiding principles to make strong composites of soft and hard materials.

81.05.Qk - Reinforced polymers and polymer-based composites.
46.50.+a - Fracture mechanics, fatigue and cracks.
82.35.Np - Nanoparticles in polymers.

© EDP Sciences 2004