SME
Finite Element Analysis · Problem type
Real stress or singularity
Use this for “The FEA peak sits at a sharp inside corner and grows each time the mesh is refined. Can I trust it?”
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Can the peak stress at this spot be trusted?
Tap a card, then tap its group.
Ask whether refining the mesh would settle the peak or keep raising it.
Assumptions
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Linear elastic FEA; a singularity is a point where the exact stress is infinite.
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A singularity’s peak keeps growing as the mesh is refined; a real peak converges.
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Point loads, sharp corners and fully fixed edges make singularities; read stress a little away from them.
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