Effects of fractured cell-walls on the creep of low density open-cell foams

2016 ◽  
pp. 533-536
Author(s):  
Z Fan
Keyword(s):  
Cell Walls ◽  
Low Density ◽  
Open Cell ◽  
Open Cell Foams

scholarly journals A numerical study of large deformations of low-density elastomeric open-cell foams

1998 ◽  
Vol 30 (2) ◽  
pp. 125-140 ◽  
Author(s):  
V. Shulmeister ◽  
M.W.D. Van der Burg ◽  
E. Van der Giessen ◽  
R. Marissen
Keyword(s):  
Large Deformations ◽  
Numerical Study ◽  
Low Density ◽  
Open Cell ◽  
Open Cell Foams

Effect of gas‐phase tortuosity on the mechanical properties of low‐density polyolefin open‐cell foams at low‐ and high‐strain rates

2019 ◽  
Vol 137 (11) ◽  
pp. 48468 ◽  
Author(s):  
E. Lopez‐Gonzalez ◽  
S. Muñoz‐Pascual ◽  
C. Saiz‐Arroyo ◽  
M. A. Rodriguez‐Perez
Keyword(s):  
Mechanical Properties ◽  
Gas Phase ◽  
High Strain ◽  
Low Density ◽  
Strain Rates ◽  
High Strain Rates ◽  
Open Cell ◽  
Open Cell Foams

Multiaxial creep of low density open-cell foams

2012 ◽  
Vol 540 ◽  
pp. 83-88 ◽  
Author(s):  
Z.G. Fan ◽  
C.Q. Chen ◽  
T.J. Lu
Keyword(s):  
Low Density ◽  
Open Cell ◽  
Open Cell Foams ◽  
Multiaxial Creep

Reconstituted Versus Virgin Open Cell Foams in Floating Floors

1995 ◽  
Vol 2 (2) ◽  
pp. 419-436 ◽  
Author(s):  
Robin Hall ◽  
Robin K Mackenzie
Keyword(s):  
Yield Point ◽  
Natural Frequencies ◽  
Low Density ◽  
Polymer Foams ◽  
Stress Strain ◽  
Waste Products ◽  
Open Cell ◽  
Flexible Polymer ◽  
Strain Relationship ◽  
Open Cell Foams

Sound reducing flooring systems using flexible polymer foams as a decoupling resilient layer are increasingly being used in both new build and refurbishment. Such foams have been investigated and results suggest that reconstituted polyether foam from waste products may offer some advantages over the low density open cell l.d.o.c.) foams currently used in some systems. It has been shown that reconstituted open cell (o.c.) foams have an almost linear compressive stress-strain relationship up to about 40% strain without the marked yield point observed with virgin o.c. foams. Stress strain characteristics for reconstituted o.c. and virgin l.d.o.c. foams compared in this study indicate that, for stresses below the yield point for the virgin foam, greater strain is observed in reconstituted foam. When tested according to BSEN 29052-1, systems comprising reconstituted foam exhibited lower natural frequencies than those with the lower density virgin foam.

Characterization of Low Density Open-Cell Foams for Space Inflatable Applications

2009 ◽  
Vol 46 (1) ◽  
pp. 210-217 ◽  
Author(s):  
Grazia Bitetti ◽  
Sandro Mileti ◽  
Mario Marchetti
Keyword(s):  
Low Density ◽  
Open Cell ◽  
Open Cell Foams

scholarly journals Low-density open-cell foams in the NiTi system

2003 ◽  
Vol 82 (16) ◽  
pp. 2727-2729 ◽  
Author(s):  
David S. Grummon ◽  
John A. Shaw ◽  
Antoine Gremillet
Keyword(s):  
Low Density ◽  
Open Cell ◽  
Open Cell Foams

Characterization of machined polystyrene foam

1989 ◽  
Vol 47 ◽  
pp. 372-373
Author(s):  
C. W. Price ◽  
E. F. Lindsey ◽  
R. M. Franks ◽  
M. A. Lane
Keyword(s):  
Surface Finish ◽  
Cell Walls ◽  
Surface Structures ◽  
Efficient Technique ◽  
Low Density ◽  
Polystyrene Foam ◽  
Planar Surfaces ◽  
Machining Characteristics

Diamond-point turning is an efficient technique for machining low-density polystyrene foam, and the surface finish can be substantially improved by grinding. However, both diamond-point turning and grinding tend to tear and fracture cell walls and leave asperities formed by agglomerations of fragmented cell walls. Vibratoming is proving to be an excellent technique to form planar surfaces in polystyrene, and the machining characteristics of vibratoming and diamond-point turning are compared.Our work has demonstrated that proper evaluation of surface structures in low density polystyrene foam requires stereoscopic examinations; tilts of + and − 3 1/2 degrees were used for the stereo pairs. Coating does not seriously distort low-density polystyrene foam. Therefore, the specimens were gold-palladium coated and examined in a Hitachi S-800 FESEM at 5 kV.

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