Sensitivity Study of an AMRL Finite Element Model of the F-lll Lower Wing Skin Structural Detail at Forward Auxiliary Spar Station (FASS) 281.28.

Abstract

A baseline three-dimensional Finite Element (FE) model has been developed for a structural detail on an F-111 lower wing skin at Forward Auxiliary Spar Station (FASS) 281.28. This location has been the site of cracking in both RAAF and USAF aircraft The FE model was developed using precise thickness measurements appropriate for a specific full-scale test wing available at AMRL (serial number A-10-824). This document is a sensitivity study of the finite element model. The effects of small dimensional changes falling within the range of the manufacturing tolerances are investigated. This will allow a quantitative assessment of the stress variations which could be expected at that location within the F-111 fleet.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1996
Accession Number
ADA322102

Entities

People

  • D. Keeley
  • R. Callinan
  • S. Sanderson

Organizations

  • Defence Science and Technology Group

Tags

Communities of Interest

  • Air Platforms
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Abstracts
  • Air Force
  • Aircrafts
  • Airframes
  • Australia
  • Bending Stress
  • Department Of Defense
  • Engineering
  • Fasteners
  • Geometry
  • Information Exchange
  • Measurement
  • Mechanics
  • Sensitivity
  • Spars
  • Stress Concentration
  • Stresses

Readers

  • Computational Modeling and Simulation
  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Structural Health Monitoring of Composite Structures.