Void Nucleation and Growth in Nonlinear Solids

Abstract

Thin-walled structures of interest to the U. S. Air Force, such as aircraft fuselages, rocket casings, helicopter blades, and containment vessels, are often constructed of layers of anisotropic, filament or fiber-reinforced materials which must be designed to remain elastic. Our research has been concerned with load diffusion in such structures. An understanding of the fundamental mechanisms of load diffusion in composite subcomponents is essential in developing primary composite structures. Analytical models of load diffusion behavior are extremely valuable in building an intuitive base for developing refined modeling strategies and assessing results from finite element analyses. The decay behavior of stresses and other field quantities provides a significant aid towards this process. Our results are also useful for structural tailoring.

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Document Details

Document Type
Technical Report
Publication Date
Aug 30, 1998
Accession Number
ADA355829

Entities

People

  • Cornelius O. Horgan

Organizations

  • University of Virginia

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Aircrafts
  • Airframes
  • Applied Mathematics
  • Civil Engineering
  • Commercial Aircraft
  • Composite Materials
  • Composite Structures
  • Diffusion
  • Engineering
  • Finite Element Analysis
  • Materials
  • Materials Testing
  • Mathematics
  • Mechanical Engineering
  • Mechanics
  • Technology Transfer

Readers

  • Reinforced Composite Materials
  • Structural Health Monitoring of Composite Structures.
  • Systems Analysis and Design