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Cell model and elastic moduli of disordered solids - Low temperature limitThe cell theory has been previously employed to compute the equation of state of a disordered condensed system. It is now generalized to include anisotropic stresses. The condition of affine deformation is adopted, transforming an orginally spherical into an ellipsoidal cell. With a Lennard-Jones n-m potential between nonbonded centers, the formal expression for the deformational free energy is derived. It is to be evaluated in the limit of the linear elastic range. Since the bulk modulus in this limit is already known, it is convenient to consider a uniaxial deformation. To begin with, restrictions are made to the low-temperature limit in the absence of entropy contributions. Young's modulus and Poisson's ratio then follow.
Document ID
19870061047
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Peng, S. T. J.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Landel, R. F.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Moacanin, J.
(California Institute of Technology Jet Propulsion Laboratory, Pasadena, United States)
Simha, Robert
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Papazoglou, Elisabeth
(Case Western Reserve University Cleveland, OH, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1987
Publication Information
Publication: Journal of Rheology
Volume: 31
Issue: 2, 19
ISSN: 0148-6055
Subject Category
Nonmetallic Materials
Accession Number
87A48321
Distribution Limits
Public
Copyright
Other

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