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  3. What causes the warning message: “Coefficient ratio exceeds 1.0e8 – Check results carefully”?

What causes the warning message: “Coefficient ratio exceeds 1.0e8 – Check results carefully”?

Tagged: 2019 R2, General, mechanical, structural-mechanics
    • January 25, 2023 at 7:34 am
      FAQFAQ
      Participant

      This warning message means stiffness matrix of the model is ill-conditioned. Some elements have severe differences in stiffness from other elements. The ill-conditioned matrix can occur due multiple reasons such rigid body motion, highly distorted elements, high frictional contacts, units that may results in numbers too big/small, or even unstable material models.

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