Analysis of the high strain compression of open-cell foams

Zhu, Hanxing ORCID: https://orcid.org/0000-0002-3209-6831, Mills, N. J. and Knott, J. F. 1997. Analysis of the high strain compression of open-cell foams. Journal of the Mechanics and Physics of Solids 45 (11-12) , pp. 1875-1899. 10.1016/S0022-5096(97)00027-6

Full text not available from this repository.

Abstract

The high strain compression of open-cell foams is analysed, using a lattice model with tetrakaidecahedral cells. The buckling of elastic cell edges, under combined bending and torsional loads, is analysed, and the deformed shapes predicted. The stress-strain relation and Poisson's ratio are predicted for strains up to 70%, for compression in the [001] and [111] directions of the BCC lattice. The prediction for [111] compression is closest to experimental stress-strain curves for polyurethane foams, especially when the cell shape anisotropy is taken into account. A plateau in the compressive stress-strain curve is not predicted, whereas one is observed for compression along the foam rise direction. Reasons for this are discussed; there is a small contribution from the polymer non-linearity, but irregular cell structures need to be analysed. The deformation, both of individual cells and of the PU foam, is compared with the theory.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Engineering
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Additional Information:	Additional page numbers: 1901-1904.
Publisher:	Elsevier
ISSN:	0022-5096
Last Modified:	27 Oct 2022 09:07
URI:	https://orca.cardiff.ac.uk/id/eprint/64469

Citation Data

Cited 164 times in Scopus. View in Scopus. Powered By Scopus® Data

Actions (repository staff only)

Edit Item