The Analysis of Crack Growth Initiation, Propagation, and Arrest in Flawed Ship Structures Subjected to Dynamic Loading

Abstract

This work represents a systematic experimental and analytical approach to extend state-of-the-art fracture mechanics treatment of crack initiation, propagation, and arrest in tough ductile materials such as ship steels. A dynamic nonlinear finite element analysis was devised to attack the problem on a step-by-step basis. The program began to work on a high strength 4340 steel under mechanical impact conditions. Then, as a degree of understanding was achieved, more realistic conditions were treated.

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Document Details

Document Type
Technical Report
Publication Date
Aug 10, 1984
Accession Number
ADA145301

Entities

People

  • C. R. Barnes
  • J. Ahmad
  • M. F. Kanninen

Organizations

  • Battelle Memorial Institute

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Accuracy
  • Blast Loads
  • Computational Science
  • Explosions
  • Explosives
  • Finite Element Analysis
  • Materials
  • Materials Science
  • Measurement
  • Mechanics
  • Modulus Of Elasticity
  • Plastic Explosives
  • Plastic Properties
  • Reliability
  • Strain Gages
  • Stress Strain Relations
  • Stress Waves

Readers

  • Materials Science (Mechanical Engineering).
  • Theoretical Analysis.