Research Into the Design Technology of Advanced Composites,

Abstract

Report Objectives: Damage Tolerance-To examine the effect of flaw size and stacking sequence on fracture stress (Pressure) and mode for graphite/epoxy cylinders and to predict these fracture stresses using coupon (Flat Plate) data; and To explore possible means of selectively reinforcing composite cylinders in order to arrest crack propagation. Aeroelasticity-To study the effect of bending-torsion stiffness coupling in advanced composites, on the aeroelastic flutter and divergence behavior of unswept and forward swept wings; and To explore aeroelastic behavior of wings at high as well as low angles of attack.

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1983
Accession Number
ADP001262

Entities

People

  • John Dugundji
  • Paul A. Lagace

Organizations

  • Massachusetts Institute of Technology

Tags

DTIC Thesaurus Topics

  • Aeroelasticity
  • Composite Materials
  • Couplings
  • Crack Propagation
  • Cracks
  • Damage
  • Damage Tolerance
  • Fluid Mechanics
  • Graphitic Materials
  • Low Angles
  • Mechanical Properties
  • Mechanics
  • Micromechanics
  • Physical Properties
  • Physics
  • Swept Wings

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Reinforced Composite Materials
  • Structural Health Monitoring of Composite Structures.