| About this Abstract |
| Meeting |
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Symposium
|
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Presentation Title |
Numerical Simulation of Pipe Bending Supported by Hydraulic Pressure for Manufacturing Butt-welding Fittings |
| Author(s) |
Josef Domitner, Peter Auer, Christof Sommitsch |
| On-Site Speaker (Planned) |
Josef Domitner |
| Abstract Scope |
An innovative pipe bending process supported by hydrostatic pressure was patented in 1995. This process was designed for producing butt-welding fittings which particularly fulfil the dimensional specifications of the ASME B16.9, MSS SP-75 and MSS SP-43 standards. Since the patent has meanwhile expired, the bending process is now available for common use. This work presents a finite element (FE) model build in the software package LS-DYNA for determining the suitable process window to bend defect-free butt-welding fittings. The model was exemplarily applied for investigating bending of a 90° stainless steel elbow based on a straight pipe of nominal pipe size (NPS) 6. Comparing the calculated geometry of the elbow with the geometry of an industrially produced elbow revealed very good dimensional agreement. This confirms that the presented model can be utilized for determining suitable process conditions which allow for producing defect-free components. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |