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In one of my conference presentations, I discussed variational crimes, noting that using point forces and point constraints in finite element analysis serves as examples of such crimes. In the question-and-answer session, I was asked: “If using point constraints is a variational crime, then how is it possible that the structure designed to refloat the Costa Concordia was full of those crimes and yet it worked just fine.” This question presented an opportunity for me to explain that finite element modeling (FEM) and finite element analysis (FEA) are complementary methods when analysts correctly understand their respective domains of application and use them accordingly. However, problems arise when FEM is used outside its scope, which is an all too frequent error.
Beware the bottlenecks preventing the adoption of simulation governance. While the idea of simulation governance may be easy to understand, the challenges of two potential bottlenecks must be addressed before it can adopted by engineering management. Read Dr. Barna Szabo's latest S.A.F.E.R. simulation post to learn more.
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