Molding of Oriented Short-Fiber Composites. II. Flow through Convergent Channels

Abstract

Superior mechanical properties can be attained in a short fiber composite by utilizing the flow in transfer or injection molding to align the fibers into the direction of highest stress. This is best accomplished in an elongational flow field, such as occurs in a converging channel. A MODEL IS DERIVED TO DESCRIBE THE CHANGES IN ORIENTATION DISTRIBUTION RESULTING FROM THIS FLOW. We investigated the effects of the geometric, material, and processing variables on the orientation parameters of this model, the resulting orientation level and the tensile modulus of molded rods.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1974
Accession Number
AD0776591

Entities

People

  • Lloyd A. Goettler

Organizations

  • Monsanto

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Composite Materials
  • Computational Fluid Dynamics
  • Elastic Properties
  • Equations
  • Flow Rate
  • Geometry
  • Injection Molding
  • Materials
  • Materials Processing
  • Materials Science
  • Measurement
  • Mechanical Working
  • Mechanics
  • Modulus Of Elasticity
  • Plastics
  • Resins
  • Tensile Modulus

Readers

  • Fluid Dynamics.
  • Reinforced Composite Materials