... See the Troubleshooting section of the Help system for possible causes.
Check the following:
Material Definition
Check the Details view for each part to see that you selected the correct material for each part. Go to Engineering Data to edit and check your material files and data and to verify the material definitions (including numbers and units). Note that, depending on the type of result, you will have a minimum of properties to be set.
Structural, Vibration, Harmonic, and Shape Results:
Need to define the Modulus of Elasticity
If you don't define the Poisson's Ratio it will default to 0.0. Also note that the Solver engine will not accept values of Poisson's Ratio smaller than 0.1 or larger than 0.4 for Shape Results.
For bodies whose Stiffness Behavior is set to Stiff Beam, make sure that Isotropic Modulus of Elasticity is defined. Note that other types of elasticity, such as orthotropic or hyperelasticity, are not allowed.
For Vibration and Harmonic results, include the Mass Density of your material.
For Thermal-stress results, you will need the Coefficient of Thermal expansion.
Thermal Results:
Thermal conductivity is required. Can be constant or temperature-dependent.
Specific Heat is required in a thermal transient analysis. Can be constant or temperature-dependent.
Check Thermal Data
For thermal analysis, go to the Engineering Data to edit and check thermal conductivity in the material files and to check thermal convection in the convection files. Verify the 'smoothness' of the temperature-dependent conductivity data and convection data. Non-smooth curves will lead to Solve failures.
Electromagnetic Materials - Minimum Requirements
For a Conductor scoped to a body, the associated material must have either Resistivity or Orthotropic Resistivity specified in order for the simulation to continue on to a solve.
For all materials in an electromagnetic simulation, one of the following four conditions must be met. These conditions are mutually exclusive of each other so only one condition can exist at a time for a material.
Linear "Soft" Magnetic Material properties specified: Either Relative Permeability or Linear Orthotropic Permeability are set.
Linear "Hard" Magnetic Material properties specified. Only Linear "Hard" Magnetic Material property is set.
Nonlinear "Soft" Magnetic Material properties specified: Either only BH Curve or BH Curve and Nonlinear Orthotropic Permeability are set.
Nonlinear "Hard" Magnetic Material properties specified: Only Demagnetization BH Curve is set.