Evaluation and Correlation of Dynamic Flow, Failure, and Microstructural Properties of Heat-Treated 4130 Steel

Abstract

An experimental program has been carried out in conjunction with the University of Dayton Research Institute to characterize the material constants of the Johnson-Cook constitutive and damage models, and additionally, the microstructure of the failed specimen has been investigated to observe any association of deformation micromechanics to the phenomenological development of the Johnson-Cook expression. An Analysis of Variance (ANOVA) statistical analysis was carried out to identify whether temperature or strain rate were significant factors in causing changes to micromechanical features, and if so, whether the micromechanical properties were related to the Johnson-Cook parameters.

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Document Details

Document Type
Technical Report
Publication Date
Sep 15, 2016
Accession Number
AD1054273

Entities

People

  • Luke A. Wuertemberger

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Climate Change
  • Computational Science
  • Crystal Lattices
  • Crystal Structure
  • Crystallography
  • Crystals
  • Elastic Properties
  • Geometry
  • Measurement
  • Mechanical Working
  • Mechanics
  • Modulus Of Elasticity
  • Specific Heat
  • Statistical Analysis
  • Stress Strain Relations
  • Test Equipment

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  • Regression Analysis.
  • Reinforced Composite Materials
  • Technical Research and Report Writing.