Tuning Elasticity of Open-Cell Solid Foams and Bone Scaffolds via Randomized Vertex Connectivity

2012 ◽  
Vol 14 (1-2) ◽  
pp. n/a-n/a
Author(s):  
Susan Nachtrab ◽  
Sebastian C. Kapfer ◽  
Dominik Rietzel ◽  
Dietmar Drummer ◽  
Mahyar Madadi ◽  
...  
2011 ◽  
Vol 14 (1-2) ◽  
pp. 120-124 ◽  
Author(s):  
Susan Nachtrab ◽  
Sebastian C. Kapfer ◽  
Dominik Rietzel ◽  
Dietmar Drummer ◽  
Mahyar Madadi ◽  
...  

2017 ◽  
Vol 117 ◽  
pp. 77-89 ◽  
Author(s):  
Salvatore Cunsolo ◽  
Rémi Coquard ◽  
Dominique Baillis ◽  
Wilson K.S. Chiu ◽  
Nicola Bianco

2000 ◽  
Vol 122 (4) ◽  
pp. 376-378 ◽  
Author(s):  
Y. Wang ◽  
G. Gioia ◽  
A. M. Cuitin˜o

Compressed open-cell solid foams frequently exhibit spatially inhomogeneous distributions of local stretch. The theoretical aspects of this deformation habit have not been clearly elucidated. Here we briefly discuss the energetics of the problem to show that the stretch inhomogeneity stems from the nonconvexity of the underlying potential. We also perform displacement field measurements using the Digital Image Correlation technique, and discuss the results in light of the theory. [S0094-4289(00)01904-6]


MRS Bulletin ◽  
2003 ◽  
Vol 28 (4) ◽  
pp. 275-278 ◽  
Author(s):  
Andrew M. Kraynik

AbstractThe properties of solid foams depend on their structure, which usually evolves in the fluid state as gas bubbles expand to form polyhedral cells. The characteristic feature of foam structure—randomly packed cells of different sizes and shapes—is examined in this article by considering soap froth. This material can be modeled as a network of minimal surfaces that divide space into polyhedral cells. The cell-level geometry of random soap froth is calculated with Brakke's Surface Evolver software. The distribution of cell volumes ranges from monodisperse to highly polydisperse. Topological and geometric properties, such as surface area and edge length, of the entire foam and individual cells, are discussed. The shape of struts in solid foams is related to Plateau borders in liquid foams and calculated for different volume fractions of material. The models of soap froth are used as templates to produce finite element models of open-cell foams. Three-dimensional images of open-cell foams obtained with x-ray microtomography allow virtual reconstruction of skeletal structures that compare well with the Surface Evolver simulations of soap-froth geometry.


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