Chaining solutions (Simcenter Samcef)

With Simcenter Samcef, you can chain two solutions so that an active solution can use results from a previously computed solution as additional input. For example, you can perform a modal analysis on a pre-stressed structure by chaining the modal analysis to use the results from the nonlinear analysis.

You can chain two solutions that are defined in the same Simulation file, or you can chain a solution in a Simulation file with a previously computed solution that is stored in an external Simcenter Samcef binary file (.u18).

Note:

Both chained solutions must share the same Simcenter Samcef input file units. For more information on these units, see Adjust advanced solver options (Simcenter Samcef).

When the active solution is	You can chain it with a previously computed
Linear Static	Linear Static solution with pre-stress conditionLinear Static solution with centrifugal stiffness computationBuckling solution with initial imperfection conditionThermal Heat Transfer solution (*)Mapping solution for dissimilar meshes
Linear Transient	Nonlinear solution to compute vibration around an instantaneous configuration.
Linear Harmonic	Nonlinear solution to compute vibration around an instantaneous configuration.
Modal	Linear Static solution with pre-stress conditionNonlinear solution to compute vibration around an instantaneous configurationThermal Heat Transfer solution (*)Mapping solution for dissimilar meshes
Nonlinear	Buckling solution with initial imperfection conditionThermal Heat Transfer solution (*)Mapping solution for dissimilar meshes
Buckling	Linear Static solution with non-proportional loadingThermal Heat Transfer solution (*)Mapping solution for dissimilar meshes
Standalone Buckling	Linear Static solution with proportional loadingNonlinear solution (incremental stability analysis)Thermal Heat Transfer solution (*)Mapping solution for dissimilar meshes

Note:

(*) Thermo-mechanical chaining limitations in Simcenter Samcef.

When you chain a structural analysis solution with a previously computed thermal Heat Transfer solution, you must ensure that both the thermal and the mechanical models are identical—they must have the same number of nodes, and these nodes must have the same IDs.

Be aware that some Simcenter Samcef objects create additional nodes during Simcenter Samcef pre-processing, and you cannot control the number of these new nodes or their IDs:

• The Bolt Pre-Load

• All the flexible contact and glue simulation objects if they involved parabolic meshed supports

• The Rigid-Flexible Contact simulation object applied on parabolic meshed supports

If you want to perform a thermo-mechanical chaining with non-identical models, you can either:

• Use a Mapping solution to map the thermal results onto the structural model.For more information on, see Mapping workflow (Simcenter Samcef).

• Create a Table Field from thermal results and use it as a load in the structural model.However, this manual method can be very tedious because you can only create a result Table Field for a given time step, while the Mapping solution maps the thermal results for all of the thermal computed time steps.For more information, see Create a table field from results.

Where do I find it?

Application	Pre/Post
Prerequisite	A Simulation file as the work part and the displayed partSimcenter Samcef as the specified solverSupported solution type
Command Finder	Solution
Simulation Navigator	Right-click the active solution→Edit
Location in dialog box	Chaining page

How do I

Adjust advanced solver options (Simcenter Samcef)

Look up more details

Advanced Solver Options dialog box (Simcenter Samcef)

Quick links

Command reference

Pre/Post video examples

Bulk Entry Descriptions

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Chaining solutions (Simcenter Samcef), Simcenter 3D 2021.1 Series

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