Residual-Strength Analysis of Primary Aircraft Structure Damaged Due to Projectile Impact and Penetration. Volume I. Test and Analysis.

Abstract

High-strength aluminum channels, damaged by projectile impacts, have been loaded to failure in pure bending. In cases where damage included cracks of significant lengths, failure loads have been compared with those predicted by linear fracture mechanics through a finite-element computer program (CRAKD) which contains special crack-tip stress-singularity elements. CRAKD has been employed for the computation of time-dependent stress-intensity factors in several problems of elastodynamic fracture. The results demonstrate the importance of specimen inertia in impact tests designed for the determination of dynamic fracture toughness. (Author)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1977
Accession Number
ADA058719

Entities

People

  • J. A. Aberson
  • J. M. Anderson
  • W. W. King

Organizations

  • Georgia Tech

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Aircrafts
  • Algorithms
  • Bending Moments
  • Computations
  • Computer Programs
  • Crack Propagation
  • Crack Tips
  • Engineering
  • Failure Mode And Effect Analysis
  • Finite Element Analysis
  • Fracture (Mechanics)
  • Impact Tests
  • Measurement
  • Mechanics
  • Stress Intensity Factors

Readers

  • Materials Science (Mechanical Engineering).
  • Structural Health Monitoring of Composite Structures.