General topics

What are the requirements for my PC to run SORPAS®?

Type of computer:           Server computer / desktop / laptop

Operation system:           Windows 7 / Windows 8 / Windows 8.1 / Windows 10

System architect              64-bit system (SORPAS® 2D runs on both 32 and 64 bit, but SORPAS® 3D runs only on 64-bit)

Processor speed:              3 GHz or higher

Number of cores:              4 cores or more especially for SORPAS 3D

RAM:                                  8 GB or higher

Hard disk free space:      50 GB or higher


Export of data

Export of data to LS-Dyna

You can export your simulation results from SORPAS® 3D into LS-Dyna.

Go to: “File/Export/Results to LS-Dyna

Export of data to DynaWeld

You can export your results from SORPAS® 2D into DynaWeld.

The interface enables you to export process simulation results from SORPAS® and continue the simulation with DynaWeld.

Choose “File/Export to DynaWeld”

Export of data to Abaqus

You can export your simulation results from SORPAS® 3D into Abaqus.

Go to: “File/Export/Results to Abaqus


Guideline for Preparing a SORPAS® Simulation Task

1. Material properties data (for each material of workpiece, coating, electrode, rivet, die)

  1. Material name
  2. Material type or grade, tempering status, aging conditions etc.
  3. Chemical composition with percentage of each element
  4. Mechanical properties, incl. yield strength, tensile strength, elongation at break, n-value
  5. Physical properties, incl. resistivity, thermal conductivity, heat capacity, mass density

2. Geometric dimensions of Workpieces (or sheets)

  1. Geometry and Dimensions of each workpiece (e.g. thickness of each sheet)
  2. Thickness of surface coating, if any

3. Geometric dimensions of Electrodes, Rivets, Dies

  1. Geometry and dimensions of electrodes especially the tip face diameter and curvature
  2. Water cooling of electrodes (water temperature and flowing rate), if and Geometry and dimensions of rivets and dies for mechanical joining

4. Welding/ Joining setup (illustrated with technical drawing)

  1. Positioning of the workpieces and electrodes in resistance welding
  2. Positioning of the workpieces, rivet and die in mechanical joining
  3. Loading direction of the force, and mechanical fixture or supporting tools

5. Characteristics of welding machine/gun, Joining machine

  1. Type of electrical power source (AC, DC or CD)
  2. Type of mechanical loading system (pneumatic, hydraulic, spring, servo etc.)
  3. Maximum secondary current (kA) and power (kVA)
  4. Maximum mechanical loading capacity (kN)

6. Welding/joining process parameters

  1. For resistance welding: Weld current, number of pulses, Weld time, Weld force.
  2. For mechanical joining: Velocity of punch movement, maximum loading force
  3. Any other special features or limitations

7. Welding/Joining problem to be analyzed

  1. Description of the existing welding problem
  2. Expectations from the simulation