Volume 76, Number 4, November 2006
|Page(s)||588 - 594|
|Section||Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid dynamics|
|Published online||20 October 2006|
Fracture of soft cellular solids —Case of non-crosslinked polyethylene foam
Department of Physics, Graduate School of Humanities and Sciences Ochanomizu University - 2–1–1, Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan
Corresponding author: firstname.lastname@example.org
Accepted: 27 September 2006
Fracture mechanical properties of hard cellular solids (porous materials) with the Young modulus E larger than 3000 have been well understood; scaling relations between fracture mechanical quantities and porosity are established, which can be explained by a theory based on the geometrical parameters of a cellular solid. In this study, we obtain experimentally the fracture energy of a very soft polyethylene foam with E around 1. We find scaling laws different from those for hard foams, which can be understood by considerations independent of the structural parameters of foams.
PACS: 46.50.+a – Fracture mechanics, fatigue and cracks / 81.05.Rm – Porous materials; granular materials / 82.35.Lr – Physical properties of polymers
© EDP Sciences, 2006
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