NUMERICAL ANALYSIS OF DIFFERENT WELD GEOMETRIES OF LAP WELDED JOINT IN AMMONIA TRANSPORT TANKS
Simon Sedmak1, Radomir Jovičić1, Aleksandar Sedmak2, Branislav Đorđević1, Ivica Čamagić3
1)University of Belgrade, Innovation Centre of the Faculty of Mech. Engng., Belgrade, Serbia
2)University of Belgrade, Faculty of Mech. Engng., Serbia
3)University of Priština, Faculty of Tech. Sciences, Kosovska Mitrovica, Serbia
Presented is a comparison of stress and strain distribution in lap welded joints of different geometries, which are part of a pressure vessel used as an ammonia transport tank. For this purpose, two numerical models are developed using finite element method (FEM). The models are subjected to tensile load and the obtained stress and strain results are compared in order to determine how the difference in welded joint dimensions affects the behaviour of the weld as a whole. It is concluded that in this case, the differences in distribution and stress/strain values are negligible, as expected due to very similar mechanical properties of the materials used.
Keywords: finite element method, ammonia transport tank, lap joint, P460NL2 steel