High-Temperature Reusable Shape Memory Polymer Mandrels (Preprint)

Abstract

Cornerstone Research Group, Inc. (CRG) has demonstrated the feasibility of filament winding complex-curved composite shapes on shape memory polymer (SMP) mandrels. SMPs can exhibit a radical change from a rigid polymer to a flexible, elastic state, and then back to a rigid state under thermal stimuli. SMP mandrels for filament winding and fiber placement allow for a quick, easy, reusable, and low-cost mandrel system. CRG has recently improved the SMP mandrel technology by adding a high-strain fiber reinforcement (HSFR) that both raises the toughness of the SMP and allows the SMP to elongate up to 150 percent. The resulting material can produce mandrels durable enough to withstand multiple use in high production rate manufacturing. This paper will demonstrate and discuss the feasibility of HSFR-SMP mandrels for filament winding and fiber placement and recent developments in CRG's SMP mandrel technology, including the fabrication of larger parts.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 2006
Accession Number
ADA455510

Entities

People

  • Beth A. Knapp
  • Matthew C. Everhart

Organizations

  • Cornerstone Research Group

Tags

Communities of Interest

  • Advanced Electronics
  • Space

DTIC Thesaurus Topics

  • Air Force Research Laboratories
  • Composite Material Fabrication
  • Composite Materials
  • Fabrication
  • Fiber Reinforcement
  • Filaments
  • Glass Transition Temperature
  • High Temperature
  • Manufacturing
  • Materials
  • Materials Processing
  • Mechanical Properties
  • Phase Transformations
  • Polymer Matrix Composites
  • Production Rate
  • Toughness
  • Transition Temperature

Fields of Study

  • Materials science

Readers

  • Aerospace logistics and air mobility.
  • Reinforced Composite Materials