Influence of imperfections on effective properties of cellular solids

Book · Thu Dec 31 00:00:00 EST 1998

OSTI ID:361797

Grenestedt, J L ^[1]

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1. Royal Inst. of Tech., Stockholm (Sweden). Dept. of Aeronautics

The mechanical properties of cellular solids, or solid foams, is affected by imperfections such as wavy distortions of cell walls, variations in cell wall thickness, non-uniform cell shape, etc. The present paper is focused mainly on elastic stiffnesses of closed cell cellular solids. A perfect model is first discussed and shown to predict the behavior of PVC foams well. However, this model over-estimates the stiffnesses of aluminum foams. The relatively poor properties of the aluminum foam are believed to be caused by imperfections in the cells. The main body of the paper focuses on modeling different kinds of imperfections, and analyzing their impact on foam properties.

• OSTI ID: 361797
• Report Number(s): CONF-980405-; TRN: IM9933%%179
• Resource Relation: Conference: Spring meeting of the Materials Research Society, San Francisco, CA (United States), 13-17 Apr 1998; Other Information: PBD: 1998; Related Information: Is Part Of Porous and cellular materials for structural applications; Schwartz, D.S.; Shih, D.S. [eds.] [Boeing Co., St. Louis, MO (United States)]; Evans, A.G. [ed.] [Harvard Univ., Cambridge, MA (United States)]; Wadley, H.N.G. [ed.] [Univ. of Virginia, Charlottesville, VA (United States)]; PB: 337 p.; Materials Research Society symposium proceedings, Volume 521
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
MECHANICAL PROPERTIES
PVC
ALUMINIUM
FOAMS
DEFECTS
MATHEMATICAL MODELS
PORE STRUCTURE
THEORETICAL DATA