Serving the Numerical Simulation community since 1989 
Today, we released product updates for StressCheck Professional and StressCheck-Powered Apps. Many customer-defined enhancements were added, and the software user experience improved.
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Convergence of minimum principal stress in an aircraft keel beam structure (courtesy Digital Engineering). On Wednesday, January 16, 2019 a webinar titled “How Do You Verify the Accuracy of Engineering Simulations?” was provided by ESRD’s Gordon Lehman and Brent Lancaster. In case you missed it, the webinar recording is now available!
In the engineering sciences, mathematical models are based on the equations of continuum mechanics, heat flow, Maxwell, Navier-Stokes, or some combination of these. These equations have been validated and their domains of calibration are generally much larger than the expected domain of calibration of the model being developed. In the terminology introduced by Lakatos, the assumptions incorporated in these equations are called hardcore assumptions, and the assumptions incorporated in the other constituents of a model are called auxiliary hypotheses. Model development is concerned with the formulation, calibration, and validation of auxiliary hypotheses.
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