A Hybrid Approach to Composite Damage and Failure Analysis Combining Synergistic Damage Mechanics and Peridynamics

Abstract

Manufacturing defects, like voids/pores in the matrix and weak planes at the matrix-fiber interfaces, make the material softer and weaker. Implementing such initial damage into the computational model is critical for predicting the performance and the failure mode of the fiber-reinforced composite (FRCs). Previously, we introduced a new Intermediate Homogenization Peridynamic approach (IH-PD model) for failure in multiphase materials. We plan to apply this IH-PD model for the implementing of initial damage (provided by the SDM approach) and modeling of crack growth and coalescence, through full failure of FRCs. In this quarter, we have tested the new IH-PD model against existing experimental results for fracture in a Functional Graded Material (FGM) plate. In the next quarter, we will implement and test the new IH-PD model for anisotropic multiphase material, such as FRCs.

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Document Details

Document Type
Technical Report
Publication Date
Mar 30, 2017
Accession Number
AD1032591

Entities

People

  • Florin Bobaru
  • Ramesh Talreja

Organizations

  • Texas Engineering Experiment Station

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Composite Materials
  • Continuum Mechanics
  • Crack Tips
  • Department Of Defense
  • Engineering
  • Failure Analysis
  • Failure Mode And Effect Analysis
  • Fiber Reinforced Composites
  • Manufacturing
  • Materials
  • Mechanics
  • Micromechanics
  • Peridynamics
  • Polymer Matrix Composites
  • Resin Transfer Molding
  • Resins

Readers

  • Computational Fluid Dynamics (CFD)
  • Reinforced Composite Materials
  • Structural Health Monitoring of Composite Structures.