Mathematical Analysis of Solid Particles Internal Support to Enhancing Pipe Bending

Abstract

Airspace, aerospace launch vehicles, and a variety of electrical devices employ low thickness bent pipes with short bending radius as one of their essential components. Producing technology for seamless bends has become essential, as the traditional method of producing such bent pipes involves welding two stamped half bends, which is no longer able to meet the high dependability requirements. This work describes a novel approach of push bending low thickness pipes with modest relative bending radiuses using solid particles internal support. Using the DEM, the pressure distribution of the solid particles is examined (DEM). The main benefit of the solid particles in reducing pipe forming faults, particularly wrinkling, is the strengthening of bending deformation. Furthermore, the study explores how diameter of the particles, solid particles friction, & counter pressure affect distribution of pressure within the system. Solid particles plays a beneficial role in enhancing wrinkle resistance during bending, as demonstrated by the formation of pipes with a high diameter, low thickness, and short bending radius. All of these findings suggest that using solid particles internal support opens up new possibilities for the relative bending radius of low thickness pipes to be bent.