Investigation of Saint Venant's Principle as Related to Laminated Composite Plates.

Abstract

The structural stiffness properties of composite laminated plates are experimental information needed in order to design aircraft components manufactured with composite materials. A common test used to obtain the necessary moduli is to apply a tension load on the ends of the specimen. Little study, if any, has been reported relating the application of the Saint Venant's principle within a multi-ply laminated plate. Previously, researchers have shown that routine application of Saint Venant's principle in problems involving a single composite lamina is not generally justified. This study offers justification for using Saint Venant's principle in commonly laid-up graphite epoxy plate specimens. The boundary conditions considered are attempts at modeling varying end supports for an in-plane loading. The analysis has been carried out using a finite element model considering three aspect ratios: 3, 5, and 10. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1978
Accession Number
ADA081908

Entities

People

  • Steven Robert Smith

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Air Platforms
  • Cyber
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Aspect Ratio
  • Composite Materials
  • Computer Programming
  • Computers
  • Elastic Properties
  • Engineering
  • Finite Element Analysis
  • Graphitic Materials
  • Laminates
  • Materials
  • Measurement
  • Mechanics
  • Numerical Analysis
  • Operating Systems
  • Three Dimensional
  • Two Dimensional

Readers

  • Aerial Delivery - Logistics and Supply Chain Management.
  • Calculus or Mathematical Analysis
  • Structural Health Monitoring of Composite Structures.