bool solidInterfaceCorr = rheology.solidInterfaceActive();
solidInterface* solidInterfacePtr(NULL);
if(solidInterfaceCorr)
{
solidInterfacePtr = &rheology.solInterface();
solidInterfacePtr->modifyProperties(muf, lambdaf);
//- solidInterface needs muf and lambdaf to be used for divDSigmaExp
if(divDSigmaExpMethod != "surface" && divDSigmaExpMethod != "decompose")
FatalError << "divDSigmaExp must be decompose or surface when solidInterface is on"
<< exit(FatalError);
}
if(divDSigmaLargeStrainExpMethod != "surface")
FatalError << "divDSigmaLargeStrainExp must be surface when solidInterface is on"