NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
The effect of fiber microstructure on evolution of residual stresses in silicon carbide/titanium aluminide compositesThis paper examines the effect of the morphology of the SCS6 silicon carbide fiber on the evolution of residual stresses in SiC/Ti composites. A micromechanics model based on the concentric cylinder concept is presented which is used to calculate residual stresses in a SiC/Ti composite during axisymmetric cooling by a spatially uniform temperature change. The silicon carbide fiber is modeled as a layered material with five distinct transversely isotropic and orthotropic, elastic layers, whereas the titanium matrix is taken to be isotropic, with temperature-dependent elastoplastic properties. The results arc compared with those obtained based on the assumption that the silicon carbide fiber is isotropic and homogeneous.
Document ID
19930070774
Document Type
Conference Paper
Authors
Pindera, Marek-Jerzy (Virginia Univ. Charlottesville, United States)
Freed, Alan D. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1992
Publication Information
Publication: In: Topics in composite materials and structures; Proceedings of the Sessions, ASME Summer Mechanics and Materials Conference, Tempe, AZ, Apr. 28-May 1, 1992 (A93-54768 24-39)
Subject Category
COMPOSITE MATERIALS
Distribution Limits
Public
Copyright
Other