Simplified Micromechanical Models for Analysis of Interface Debonding in a Fibrous Composite.

Abstract

The objective of this study is to develop simplified micromechanical models to analyze the interface debonding between fiber and the matrix materials. Both analytical and simplified finite element models are used to predict the effective transverse elastic modules of fibrous composites with a partial interface crack based on the material properties of their constituents. The simplified finite element model uses springs in the connecting nodes between the fiber and matrix. A detailed finite element analysis, which is programmed using the MATLAB engineering software is performed to check the accuracy of the simplified models. The simplified models yield accurate effective transverse elastic modulii of various composites with partial interface cracks when compared to the results obtained from detailed finite element analyses.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1995
Accession Number
ADA306624

Entities

People

  • Jia-yuarn Guo

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Accuracy
  • Composite Materials
  • Composite Structures
  • Computer Programs
  • Engineering
  • Epoxy Composites
  • Equations
  • Finite Element Analysis
  • Glass Fibers
  • Graphitic Materials
  • Laminates
  • Materials
  • Mechanical Engineering
  • Micromechanics
  • Modulus Of Elasticity
  • Transverse
  • Two Dimensional

Fields of Study

  • Engineering

Readers

  • Computational Modeling and Simulation
  • Structural Dynamics.
  • Structural Health Monitoring of Composite Structures.