Abaqus Welding Interface (NSRP M&S 2)
Enables up - front realistic simulation of welded structures
Abaqus Welding Interface (NSRP M&S 2)
Enables up-front realistic simulation of welded structures
Overview
Traditional consumable welding is a very common manufacturing method. But these common welding methods are also associated with a few expensive and sometimes undesirable processes such as flame straightening, weld testing, or trial and error with fixturing and path sequencing. All of these processes require time and materials, which ultimately results in added cost.
As part of the National Shipbuilding Research (NSRP) M&S 2 Project, Dassault Systèmes SIMULIA has developed a virtual welding application, called Abaqus Welding Interface (AWI), which provides the ability to virtually model the welding process and predict weld distortion and residual stresses. The result is reduced need for time-consumingphysical tests and manual corrections because SIMULIA tools predict if a given welding process/sequence will work.
Virtual Welding Highlights
Easy Modeling of the Welding Process
Automation of repetitive, time-consuming tasks:
1. Welding specification
2. Weld Pass specifications
3. Thermal loading conditions
4. Structural loading conditions
Thermal Results Correlate with Experimental Results
Predicted temperature results (shown in the charts) compare reasonably well with the experimental data reported in the reference:. S. Murugan, P.V. Kumar, B. Raj, M.S.C. Bose, Temperature distribution during multipass welding of plates, International Journal of Pressure Vessels and Piping 75 (1998) 891–905.
Weld Distortion and Residual Stresses Are Easily Obtained from Thermal Loading
1. Review stress and strains
2. Review displacements
3. View other contour plots
Features & Benefits
- Automate time consuming tasks associated with building a weld model.
- Set up custom weld pass sequence or let plug-in automatically define.
- Easily create all the required analysis steps with appropriate data, the energy transport boundary conditions for each step, and the sets for sensor output requests (where applicable and available).
- Build the entire thermal model followed by the automatic generation of the corresponding mechanical model for thermal stress analysis.
- Modify and optimize the process before any actual material is welded.
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