Numerical evaluation of an autofrettaged thick-walled cylinder under dynamically applied axially non-uniform internal service pressure distribution  

作　　者：Onur Güngor Veli celik 

机构地区：[1]MKE Kurumu Müimmat Fabrikasι Ar-Ge Müdürlügü,71100,Merkez,Kιrkkale,Turkey [2]Yιldιrum Beyazιt üniversitesi Doga Bilimleri Fakültesi,06010,Kecioren,Ankara,Turkey

出　　处：《Defence Technology（防务技术）》2018年第5期412-416,共5页Defence Technology

基　　金：Ministry of Science, Industry, and Technology which supported this project under the Industrial Thesis Support Program

摘　　要：A dynamical moving pressure structural numerical calculation model using the internal ballistics calculation pressure-time results was constituted and the vicinity of the internal ballistics and quasiinternal ballistics structural model was checked. The Von Mises stresses obtained by the dynamical structural numerical model calculations and the Von Mises stresses calculated from the shot test strain measurements were compared. The difference for the worse case was 20% and for the best case was 0.1%.Furthermore, the model gave better agreement for the higher charge masses. The numerical structural quasi-internal ballistics computation model created was verified for the top charge mass which represents the highest stress condition and used in a gun barrel design.A dynamical moving pressure structural numerical calculation model using the internal ballistics calculation pressure-time results was constituted and the vicinity of the internal ballistics and quasiinternal ballistics structural model was checked. The Von Mises stresses obtained by the dynamical structural numerical model calculations and the Von Mises stresses calculated from the shot test strain measurements were compared. The difference for the worse case was 20% and for the best case was 0.1%.Furthermore, the model gave better agreement for the higher charge masses. The numerical structural quasi-internal ballistics computation model created was verified for the top charge mass which represents the highest stress condition and used in a gun barrel design.

关 键 词：GUN tube design Thick WALL cylinder Residual stress INTERNAL BALLISTICS SERVICE pressure WALL thickness Numerical modeling of INTERNAL BALLISTICS 

分 类 号：TJ[兵器科学与技术]