NDLI: Effects of microstructure on uniaxial strength asymmetry of open-cell foams

Content Provider	Springer Nature Link
Author	Huang, Ji xiang Lu, Zi xing Yuan, Ze shuai
Copyright Year	2015
Abstract	Based on the elongated Kelvin model, the effect of microstructure on the uniaxial strength asymmetry of open-cell foams is investigated. The results indicate that this asymmetry depends on the relative density, the solid material, the cell morphology, and the strut geometry of open-cell foams. Even though the solid material has the same tensile and compressive strength, the tensile and compressive strength of open-cell foams with asymmetrical sectional struts are still different. In addition, with the increasing degree of anisotropy, the uniaxial strength as well as the strength asymmetry increases in the rise direction but reduces in the transverse direction. Moreover, the plastic collapse ratio between two directions is verified to depend mainly on the cell morphology. The predicted results are compared with Gibson and Ashby’s theoretical results as well as the experimental data reported in the literature, which validates that the elongated Kelvin model is accurate in explaining the strength asymmetry presented in realistic open-cell foams.
Ending Page	46
Page Count	10
Starting Page	37
File Format	PDF
ISSN	02534827
e-ISSN	15732754
Journal	Applied Mathematics and Mechanics
Issue Number	1
Volume Number	36
Language	English
Publisher	Shanghai University
Publisher Date	2014-11-18
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Micromechanics microstructure strength Kelvin model Mechanics Nonsimple materials Micromechanical theories Applications of Mathematics Mathematical Modeling and Industrial Mathematics open-cell foam
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Mechanics of Materials Mechanical Engineering

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