Structural analysis of non-linear pipe bends

Pipe bends are most important necessary for all kind of industries in terms of pipelining materials. Pipe bend is very difficult to avoid thickening on the inner side of the pipe bend and thinning of the outer side of the pipe bend. The cross-section also becomes non-circular due to bending process; this tends to cause ovality and thinning in pipe bends. ovality is the main cause to fail the pipe. This study is an attempt to analyze the stainless steel tube.We are going to apply both internal load an external load on the pipe. The internal load we are applying as pressure and external load we are going to applying by using spring balance The stainless steel tube with Diameter 42.2mm and thickness 3mm and bend radius of 250 mm for the percentage of ovality varied from 0 to 20 is considered for doing the analysis. The pipe bend geometry is imported into ANSYS as IGES file and the convergence study was performed. Workbench option is invoked in the analysis for better results. The results of the analysis presented in the form of total deflection and stresses for incremented internal pressure was computed for the various percentage of ovality. During this process, the bend undergoes plastic instability due to pressure and bending. Pipe bends improve the pipe quality and trustworthiness in terms of pipe bend analysis. Finally, the induced stress intensity and deformation of the pipe due to internal pressure and bending were noted.