Stress Analysis and Strength Prediction of Adhesively Bonded Composite Joints

Abstract

The state of the art in the stress analysis and strength prediction of adhesively bonded composite joints is presented. A generalized coordinate finite element analysis based on rectangular, cylindrical and wedge solid elements is developed and utilized for the three-dimensional analysis of composite bonded joints. The comparison of results between 2-D and 3-D bonded joint analysis tools are made and their limitations are discussed. Further, the submodeling technique available in the commercial finite element package ABAQUS is explored to study the three-dimensional stress field in the vicinity of joint edges and debond cracks. The series of bolted joint design codes BONJO developed by Lockheed are incorporated into a PC based Bolted and Bonded Joint (BBJ) design methodology. The Bolted and Bonded Joint design tool is made more informative and user-friendly through the use of Windows 95TM based Graphic User Interfaces (GUIs) fully integrated with a material database and on-line help.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1998
Accession Number
ADA355808

Entities

People

  • Alexander E. Bogdanovich
  • Naveen Rastogi
  • Som R. Soni

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aircrafts
  • Composite Materials
  • Computer Programs
  • Elastic Properties
  • Failure Mode And Effect Analysis
  • Finite Element Analysis
  • Geometry
  • Joints
  • Laminates
  • Materials
  • Mechanics
  • Numerical Analysis
  • Stress Analysis
  • Stress Strain Relations
  • Stresses
  • Three Dimensional
  • Two Dimensional

Fields of Study

  • Engineering

Readers

  • Database Systems and Applications
  • Structural Health Monitoring of Composite Structures.