The effect of matrix constitutive model on residual thermal stresses in MMC

Journal Article · Sat Oct 01 00:00:00 EDT 1994 · Journal of Engineering Materials and Technology; (United States)

DOI:https://doi.org/10.1115/1.2904320· OSTI ID:6799941

Brayshaw, J B; Pindera, M J ^[1]

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1. Univ. of Virginia, Charlottesville, VA (United States). Civil Engineering and Applied Mechanics Dept.

A thermomechanical analysis of advanced composites in a wide temperature range is presented. This analysis is based on the micromechanics method of cells. An incremental formulation of the micromechanics model is developed to facilitate the use of various inelastic constitutive theories. These theories incorporate time-dependent and temperature-dependent features for modeling different types of metal matrices. The constitutive models include the Bodner-Parton unified theory of viscoplasticity, the incremental plasticity model, and a power-law creep model. The effect of the cooling rate, taking into account temperature-dependent matrix properties, on residual thermal stresses is subsequently investigated for a SiC/Ti composite using the different models for the matrix phases. Predictions generated using the micromechanics method are compared with available results of finite-element analysis.

• OSTI ID: 6799941
• Journal Information: Journal of Engineering Materials and Technology; (United States), Journal Name: Journal of Engineering Materials and Technology; (United States) Vol. 116:4; ISSN 0094-4289; ISSN JEMTA8
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
ALLOYS
CARBIDES
CARBON COMPOUNDS
COMPARATIVE EVALUATIONS
COMPOSITE MATERIALS
DATA
EVALUATION
INFORMATION
MATERIALS
MATHEMATICAL MODELS
NUMERICAL DATA
RESIDUAL STRESSES
SILICON CARBIDES
SILICON COMPOUNDS
STRESSES
TEMPERATURE DEPENDENCE
THEORETICAL DATA
THERMAL STRESSES
TIME DEPENDENCE
TITANIUM ALLOYS