Accession Number : ADA087218

Title :   Stress Concentrations in Screw Threads.

Descriptive Note : Technical rept.,

Corporate Author : ARMY ARMAMENT RESEARCH AND DEVELOPMENT COMMAND WATERVLIET NY LARGE CALIBER WEAPON SYSTEMS LAB

Personal Author(s) : O'Hara,G P

PDF Url : ADA087218

Report Date : Apr 1980

Pagination or Media Count : 43

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.

Descriptors :   *SCREW THREADS, *STRESS CONCENTRATION, COMPUTERIZED SIMULATION, FATIGUE LIFE, GUN BARRELS, FINITE ELEMENT ANALYSIS, LOADS(FORCES), TENSILE STRESS, NONLINEAR DIFFERENTIAL EQUATIONS, PHOTOELASTICITY, RADIAL STRESS

Subject Categories : Couplers, Fasteners, and Joints

Distribution Statement : APPROVED FOR PUBLIC RELEASE