Accession Number:

ADA230529

Title:

Micromechanical Modeling of the Fiber/Matrix Interface Region in a Metal Matrix Composite

Descriptive Note:

Master's thesis

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING

Personal Author(s):

• Robertson, David D.

Report Date:

1990-12-01

Pagination or Media Count:

144.0

Abstract:

In order to develop reasonable analytical models and to better understand how the integrity of the fibermatrix interface in high temperature titanium based metal matrix composites effects the overall transverse normal characteristics, a parametric study of various fibermatrix interface conditions was performed. Analysis methods included both a simplified one-dimensional mathematical model and a finite element analysis using MSCNASTRAN. First, both strong and weak interfacial bonds were examined. Subsequently, to provide for partial bonding, a model that used an elastic-plastic interphases zone between the fiber and matrix was examined.

Descriptors:

• *METAL MATRIX COMPOSITES
• PARAMETRIC ANALYSIS
• INTERFACES
• FINITE ELEMENT ANALYSIS
• ONE DIMENSIONAL
• MATHEMATICAL MODELS
• MATRIX MATERIALS
• BONDING
• SIMPLIFICATION
• LOW STRENGTH
• TRANSVERSE

Subject Categories:

• Laminates and Composite Materials

Distribution Statement:

APPROVED FOR PUBLIC RELEASE