Spline Variational Theory for Composite Bolted Joints.

Abstract

The hybrid numerical approximation model for predicting stresses and strains in open-hole composites was refined. The model was also expanded to include singular full-field stress analysis of multi-interface composites under mechanical, thermal and bearing loads. The rigid fastener hole problem was also examined. This hybrid model, using spline variational theory and Reissner's variational principle, provides accurate solutions in the vicinity of the singularity. Convergence with coarse subdivisions was observed if the multiple singular terms of neighboring interfaces are included.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1999
Accession Number
ADA366958

Entities

People

  • E. Iarve

Organizations

  • University of Dayton

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Bolted Joints
  • Climate Change
  • Composite Materials
  • Convergence
  • Coordinate Systems
  • Equations
  • Fasteners
  • Laminates
  • Materials
  • Mechanics
  • Shear Stresses
  • Stress Analysis
  • Stresses
  • Three Dimensional
  • Variational Principles

Readers

  • Approximation Theory.
  • Structural Health Monitoring of Composite Structures.