Determination of Residuals Stresses Induced by the Autofrettage Treatment by the X-Rays Diffraction Method  

作　　者：Naziha Zerari Tarik Saidouni Abdelouaheb Benretem 

机构地区：[1]Laboratory of the Electromechanicaly Engineering Badji Mokhtar-Annaba University, Annaba, Algeria [2]Laboratory of the Mechanical Systems, Path, Engineering of the Mechanical Systems, Option Structure and Production Ministry of the National Defense, School Military Polytechnic EMP, Alger, Algeria

出　　处：《Modern Mechanical Engineering》2013年第3期121-126,共6页现代机械工程（英文）

摘　　要：Some meaningful advances have been made these last years to value precise and reliable way the residual stresses experimentally created by the autofrettage. The autofrettage process is used widely to introduce residual stresses into thick walled tubes;traditionally residual stresses have been measured using the Sachs method destructive or non-destructive methods. In this paper we describe the application of the X-rays diffraction;this technique permits to justify the presence of the compressive tangential residual stresses, and to value their distribution after two different autofrettage internal pressures loading. The results show that there is a large difference in the residual stresses find in the different autofrettege pressure. One can see the influence of the autofrettage’s pressure quantity on residual stresses created in the thickness of the test tubes.Some meaningful advances have been made these last years to value precise and reliable way the residual stresses experimentally created by the autofrettage. The autofrettage process is used widely to introduce residual stresses into thick walled tubes;traditionally residual stresses have been measured using the Sachs method destructive or non-destructive methods. In this paper we describe the application of the X-rays diffraction;this technique permits to justify the presence of the compressive tangential residual stresses, and to value their distribution after two different autofrettage internal pressures loading. The results show that there is a large difference in the residual stresses find in the different autofrettege pressure. One can see the influence of the autofrettage’s pressure quantity on residual stresses created in the thickness of the test tubes.

关 键 词：AUTOFRETTAGE ELASTO-PLASTIC RESIDUAL Stresses X-Rays DIFFRACTION 

分 类 号：R73[医药卫生—肿瘤]