The Role of CAE in Medical Device Development

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Understanding the role of simulation in the development of medical devices. The medical industry is one of the most complex and regulated sectors of the economy—and for good reason. Medical devices offer an opportunity to drastically improve the health and quality of living for millions of patients each year, yet the risks of a faulty device are equally great. The devices that might save a patient could also prove fatal, or cause other lasting injury, if the design behind them […]

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Abaqus Convergence Problems: What Do I Do About Negative Eigenvalues?

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My simulation is not solving efficiently and diverges. I have negative eigenvalues in my message file, what does this mean? To answer this question, let us take a brief look at the finite element method. Your model is being turned into a representative stiffness that we call a stiffness matrix. These are the same matrices you studied a long time ago in math class. However, they have the possibility of having millions of entries as your model becomes large! The […]

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