[Filippo70]

Hi foamers,

I am trying to restart a solid simulation of a three-dimensional pipe, with variable inner pressure imposed, using two different types of material.
In solidProperties I enter ‘restart yes;’ and receive the following error:

--> FOAM FATAL ERROR: (openfoam-2312)
previous iteration field
IOobject: volVectorField DD local: readOpt: 4 writeOpt: 16 registerObject: 1 globalObject: 0 ‘/home/filippo/OpenFOAM/filippo-v2312/solids4foam-2.1/run/layeredPipe/0’

  not stored.  Use field.storePrevIter() at start of iteration.

    From const Foam::GeometricField<Type, PatchField, GeoMesh>& Foam::GeometricField<Type, PatchField, GeoMesh>::prevIter() const [with Type = Foam::Vector<double>; PatchField = Foam::fvPatchField; GeoMesh = Foam::volMesh].
    in file /home/filippo/OpenFOAM/OpenFOAM-v2312/src/OpenFOAM/lnInclude/GeometricField.C at line 1090.

The same error can be obtained by going to the tutorial:

solids4foam-2.1/tutorials/solids/multiMaterial/layeredPipe/constant/solidProperties

entering

solidModel    nonLinearGeometryUpdatedLagrangian; 

...
restart    yes;

and selected different mechanical law:

type    neoHookeanElastic;

Running other tests in a single material configuration does not cause this problem, as the appropriate files for restarting are generated within the times.
I have seen other threads on this topic:solids4Foam: Restart of solid-solid contact cases not working for some cases and https://github.com/solids4foam/solids4foam/issues/67 but none of them reports a multi-material case.
I think the problem lies in setting the calculation model as update Lagrangian formulation.

I would like to ask for an answer if anyone has already experienced this type of problem.

Thanks in advance