Perforated plate - QuickField simulation example
A thin rectangular sheet with a central hole subject to tensile loading.
How to find stress concentration around hole in plate?
Answer Typical applications Geometry
Length: 240 mm;
Given
Task
Solution
Engineering question
Set up a plane-parallel QuickField Stress Analysis problem for a perforated plate and evaluate stress concentration from computed field results.
perforated structural plates, mechanical sheet components, stress concentration specimens
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Simulation problem
Problem Type
Plane-parallel problem of stress analysis.
Width: 180 mm;
Radius of central opening: 30 mm;
Thickness: 5 mm.
Young's modulus E = 207000 N/mm²
Poisson's ratio ν = 0.3.
The uniform tensile loading (40 N/mm²) is applied to the bottom edge of the structure.
Determine the concentration factor due to presence of the central opening.
Due to mirror symmetry one quarter of the structure is presented, and internal boundaries are restrained
in X and Y directions respectively.
The concentration factor may be obtained from the loading stress (40 N/mm²) and the maximum computed stress (146 N/mm²) as k = 146 / 40 = 3.65.
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