NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Experimental micro mechanics methods for conventional and negative Poisson's ratio cellular solids as Cosserat continuaContinuum representations of micromechanical phenomena in structured materials are described, with emphasis on cellular solids. These phenomena are interpreted in light of Cosserat elasticity, a generalized continuum theory which admits degrees of freedom not present in classical elasticity. These are the rotation of points in the material, and a couple per unit area or couple stress. Experimental work in this area is reviewed, and other interpretation schemes are discussed. The applicability of Cosserat elasticity to cellular solids and fibrous composite materials is considered as is the application of related generalized continuum theories. New experimental results are presented for foam materials with negative Poisson's ratios.
Document ID
19910039007
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Lakes, R.
(Iowa, University Iowa City, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1991
Publication Information
Publication: ASME, Transactions, Journal of Engineering Materials and Technology
Volume: 113
ISSN: 0094-4289
Subject Category
Structural Mechanics
Accession Number
91A23630
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available