Theoretical and Experimental Analysis of a Ring Compression Test for Ti-6Al-4V Titanium Alloy
In the paper a theoretical and experimental analysis of a ring compression test of Ti-6A1-4V titanium alloy was carried out. The research aims at optimization of plastic deformation of tested alloy. The ring compression test has been carried out on the hydraulic press with loading force of 2. 5MN. The specimen dimensions were as following: outside diameter D1 = 20mm, inside diameter D2 = 10mm and specimen thickness (height) H= 6. 6mm. The ratio of the initial ring dimensions: outside diameter to inside diameter to thickness was 6:3:2 according to Male and Cock-crofts recommendations. In the experiment the specimens were compressed every 10％ till the height reduction reached 60％. As the formability of Ti-6Al-4V titanium alloy in ambient temperature is rather poor so the crack initiation was observed during compression. Metallographic sections of the deformed specimens are presented. The experiments were compared with the numerical calculations, which were carried out using the ADINA System v 8.3 based on FEM. Elastic-plastic material model with the isotropic hardening was assumed in the calculations. An axial-symmetrical model of the problem was assumed due to the specimen shape. FE mesh was created using 8-node isoparametric elements. The finite element mesh was thickened in the area of the surface. The mechanical properties of Ti-6A1-4V alloy were determined experimentally.
Ti-6Al-4V titanium alloy ring compression test numerical simulation
Piotr Lacki Janina Adamus Maciej Motyka Jan Sieniawski
Czestochowa University of Technology,ul. J. H. Dabrowskiego 69,42-201 Czestochowa,Poland Rzeszow University of Technology,ul. W. Pola 2,35-959 Rzeszow,Poland
国际会议
The 12th World Conference Titanium(第十二届世界钛会 Ti-2011)
北京
英文
333-336
2011-06-19（万方平台首次上网日期，不代表论文的发表时间）