3-D Finite Element Method for Micromechanical Analysis in Fibrous Composite Material.

Abstract

The objective of this thesis was to study whether simplified three dimensional finite element models could be used as a micromechanical model for analysis of stresses at the fiber and matrix level while providing smeared composite properties for the global structural analysis. The mathematical model was programmed using the MATLAB engineering software. For considering interface cracks between the fiber and matrix, springs were modeled in the connecting nodes between the fiber and matrix on each of the three degrees of freedom. When results were compared with experimental data, findings proved that the simplified three dimensional finite element models could simulate the material property of the graphite/epoxy composite very efficiently. (AN)

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1995
Accession Number
ADA302950

Entities

People

  • Chun-chun Cheng

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Composite Materials
  • Computer Programs
  • Coordinate Systems
  • Differential Equations
  • Engineering
  • Epoxy Composites
  • Equations
  • Experimental Data
  • Finite Element Analysis
  • Graphitic Materials
  • Materials
  • Mechanical Engineering
  • Mechanics
  • Micromechanics
  • Modulus Of Elasticity
  • Shear Modulus
  • Three Dimensional

Readers

  • Computational Modeling and Simulation
  • Reinforced Composite Materials
  • Structural Dynamics.