Dynamic Behavior of Laminated Polymeric Matrix Composites.

Abstract

The primary goal of this two-year program is to study, numerically, and experimentally the dynamic response of idealized laminated graphite-epoxy fan blades subjected to impact loads. The blade is simulated by a flat plate. Two impact cases are studied: one is the inplane impact, the other is the shear-bending impact. This report includes results of the theoretical and experimental predictions of wave velocities and strain histories for the cases of in-plane and shear-bending impact of aluminum, graphite-epoxy cross-ply, and graphite epoxy angle-ply plates. In addition, the status of the program to compute local responses (using the finite-difference code HEMP) and structural responses (using NASTRAN) of laminated structures is presented. Finally, preliminary results of an impact parametric study (utilizing NASTRAN) involving the impact of a laminated beam structure are presented.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1976
Accession Number
ADA038067

Entities

People

  • Pei C. Chou
  • Richard W. Mortimer

Organizations

  • Drexel University

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Composite Materials
  • Differential Equations
  • Dynamic Response
  • Equations
  • Government Procurement
  • Graphitic Materials
  • Kinetic Energy
  • Laminates
  • Materials
  • Materials Laboratories
  • Mechanical Engineering
  • Mechanics
  • Partial Differential Equations
  • Strain Gages
  • Structural Response
  • Wave Equations

Fields of Study

  • Physics

Readers

  • Structural Health Monitoring of Composite Structures.