Stress Concentrations in Screw Threads

Abstract

The concept of stress concentration in screw threads is defined as a ratio of maximum fillet stress normalized to shear transfer rate. The data is presented as a plot of fillet stress vs. radial stress for a particular thread form. The Heywood equation is used to generate the basic plots and NASTRAN is used to extend the analysis to the case both where flanks of an individual thread tooth are in contact and the case where a finite axial stress is superimposed.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1980
Accession Number
ADA087218

Entities

People

  • G. P. O'hara

Organizations

  • United States Army Armament Research, Development and Engineering Center

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Axial Loads
  • Classification
  • Engineering
  • Equations
  • Finite Element Analysis
  • Geometry
  • Load Distribution
  • Mechanical Engineering
  • Mechanical Properties
  • Mechanics
  • Military Research
  • Radial Stress
  • Screw Threads
  • Security
  • Stress Concentration
  • Stresses
  • Three Dimensional

Fields of Study

  • Engineering

Readers

  • Regression Analysis.
  • Structural Health Monitoring of Composite Structures.
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).