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Node movement

Node movement

Node movement

(OP)
To what extent will the refinement by Node movement Help in improving the solution. Any Litreature or reference please suggest
thanks in adv
raj

Raj

RE: Node movement

That is a broad field to answer in a short post. But a suggestion would be to make a google-search an use the technical term R-adaptivity.

Just "R+adaptivity" gave me a few hits.

Good luck

Thomas

RE: Node movement

This may a broad field, and I hope that I don't muddy things by making this statement too broad: moving nodes in 8 or 9 noded quadrilaterals to the quarter point (from this midpoints of the edges), closer to the crack tip, often improves, sometimes substantially, the finite element solution and computation of engineering data such as stresses and Stress Intensity Factors. The reason is, I recall, that moving the nodes to the quarter points results in a coordinate mapping with functional form that closely matches the exact solution.

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