Accession Number : AD0462090


Title :   EXPERIMENTAL TECHNIQUES FOR PREDICTING FATIGUE FAILURE OF CANNON BREECH MECHANISMS.


Descriptive Note : Final rept.,


Corporate Author : WATERVLIET ARSENAL NY


Personal Author(s) : Weigle, Robert E ; Lasselle, Ralph R


Report Date : Mar 1965


Pagination or Media Count : 33


Abstract : In this paper a technique for predicting thread fatigue behavior for full scale cannon breech mechanisms from small specimen tests is investigated. A thread load distribution factor is determined experimentally for the breech ring and breech block components by measurement of the thread fillet strains at breech chamber pressures of 49,500 psi. A comparison of small specimen thread fatigue data with the results of full scale breech component test results is given for several thread geometries. (Author)


Descriptors :   BREECH MECHANISMS , SCREW THREADS , TEST METHODS , CORRELATION TECHNIQUES , LOADS(FORCES)


Distribution Statement : APPROVED FOR PUBLIC RELEASE