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Results tagged with stiffness
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user 727
Referring to ordinary differential equations that require an extremely small timestep to guarantee numerical stability.
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In FEM, why is the stiffness matrix positive definite?
The stiffness has to be a restoring force. At least for a physical spring. The stiffness matrix extends this to large number of elements (global stiffness matrix). That is all. … FEM basis is in the stiffness matrix method for structural analysis where each element has a stiffness associated with it. …
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