Composite Materials for Advanced Global Mobility Concepts

Abstract

A 3-D stress and strain model of woven fabric composites based on Reissner's variational principle was developed and the model included 29 unknown variables. Strength predictions were also included, obtained by introducing penalty energy terms. The model results show good agreement when compared with woven composite experiments and flat laminate experiments and models. This agreement includes moduli, strength, and failure modes. Similar 3-D modeling of graphitic foam structures was initiated using the tetrahedral strut geometry. The basic premise for the graphitic foam processing model was also laid out.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 2000
Accession Number
ADA389381

Entities

People

  • K. K. Han

Organizations

  • University of Dayton

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force Research Laboratories
  • Composite Materials
  • Computational Science
  • Elastic Properties
  • Failure Mode And Effect Analysis
  • Finite Element Analysis
  • Geometry
  • Laminates
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Mechanics
  • Shear Stresses
  • Three Dimensional
  • Two Dimensional
  • Variational Principles

Fields of Study

  • Materials science

Readers

  • Reinforced Composite Materials
  • Structural Dynamics.
  • Theoretical Analysis.