A viscoplastic constitutive theory for metal matrix composites at high temperatureA viscoplastic theory is presented for representing the high-temperature deformation behavior of metal matrix composites. The point of view taken is a continuum one where the composite is considered a material in its own right, with its own properties that can be determined for the composite as a whole. It is presumed that a single preferential (fiber) direction is identifiable at each material point (continuum element) admitting the idealization of local transverse isotropy. A key ingredient in this work is the specification of an experimental program for the complete determination of the material functions and parameters for characterizing a particular metal matrix composite. The parameters relating to the strength of anisotropy can be determined through tension/torsion tests on longitudinally and circumferentially reinforced thin-walled tubes. Fundamental aspects of the theory are explored through a geometric interpretation of some basic features analogous to those of the classical theory of plasticity.
Document ID
19890033354
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Robinson, D. N. (Akron Univ. Akron, OH, United States)
Ellis, J. R. (Akron, University OH, United States)
Duffy, S. F. (Cleveland State University OH, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1987
Subject Category
Composite Materials
Meeting Information
Meeting: 1987 Pressure Vessels and Piping Conference