Elastic Comparison of Four Thread Forms.

Abstract

Previously, this author introduced the concept that all screw thread forms have a structural Characteristic Curve, which defines the basic stress concentration as a function of a radial stress in the joint. An additional set of characteristic curves is produced when the general stress field is considered. The standard analysis is for a single thread tooth, isolated from a long chain of identical teeth, that is computationally efficient and facilitates the calculation of a family of characteristic curves. This work presents the characteristic plots for four different threads, the 7 degree British buttress, a 15 degree asymmetric V, the 20 degree Benet buttress, and a special 30 degree V. These four threads were selected because they are or may be useful in high pressure systems. Together they suggest the possibility of a standard thread family for high pressure applications.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1998
Accession Number
ADA338658

Entities

People

  • G. P. O'hara

Organizations

  • United States Army Armament Research, Development and Engineering Center

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Bearings
  • Coefficients
  • Elastic Properties
  • Engineering
  • Geometry
  • Guns
  • High Pressure
  • Materials
  • Mechanical Working
  • Mechanics
  • Military Research
  • Pressure Vessels
  • Radial Stress
  • Shear Stresses
  • Standards
  • Stress Concentration
  • Stresses

Readers

  • Materials Science and Engineering.
  • Regression Analysis.
  • ballistics.