Coefficient Ratio Exceeds 1.0e8 - Check Results -

Once diagnosed, several strategies can reduce the coefficient ratio to acceptable levels (typically below 1e6 ).

: Mixing very stiff components (like rigid links or steel) with very soft components (like weak springs or rubber-like materials) in the same model. Poorly Constrained Models : If a part is under-constrained, it may experience rigid body motion coefficient ratio exceeds 1.0e8 - check results

The ratio of these coefficients in the matrix is 400 / 0.025 = 16,000 . That is fine. But introduce a highly insulating aerogel ( k ≈ 0.004 ) next to copper, and the ratio jumps to 100,000 . Add an orthotropic material with conductivity 1000 in one direction and 0.001 in another within the same cell, and you can easily exceed 1e8 . and the ratio jumps to 100