Research Update for: A Method for Out-of-autoclave Fabrication of High Fiber Volume Fraction Fiber Reinforced Polymer Composites (ARL-TR-6057)

Abstract

In an update to previous research, we have been increasing the fiber-volume fraction by Vacuum Assisted Resin Transfer Molding (VARTM) in order to produce composite structures with aerospace grade qualities. Of specific focus is the control of processing parameters during resin infusion to obtain fiber-volume fractions like those of autoclave processed composites. Using a combination of viscosity control, U.S. Army Research Laboratory (ARL) based VARTM techniques, and a pressure control system, we have shown an increase in fiber-volume content from 50% (ARL?s normal processing range for a particular material system and VARTM process) to over 60%. Future work will focus on continued processing improvements in order to achieve 65% fiber-volume fraction with this material system. It is shown that the increase in fiber-volume fraction provides for higher strength to weight ratios in composite parts while cutting the cost of fabrication. Processing characteristics will be presented, and evaluations will be discussed.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 2012
Accession Number
ADA571902

Entities

People

  • Larry R. Holmes Jr.

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Composite Material Fabrication
  • Composite Materials
  • Fabrication
  • Fiber Reinforced Polymers
  • Laminates
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Testing
  • Military Research
  • Plastics
  • Polymer Matrix Composites
  • Polymers
  • Reinforced Plastics
  • Resin Transfer Molding
  • Resins
  • Test Methods

Fields of Study

  • Materials science

Readers

  • Reinforced Composite Materials
  • Technical Research and Report Writing.

Technology Areas

  • Space