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NAFEMS LE6

Static (shells)PASS · 1.65%

Skew plate under uniform normal pressure — principal stress check near a corner singularity.

Tolerance:
5%

Problem statement

Geometry
Skew (parallelogram) plate.
Material
E = 210 GPa, ν = 0.3.
Boundary conditions
Uz = 0 on all edges; Ux = Uy = 0 at corner A and Uy = 0 at corner B; uniform pressure of -0.7 kPa.
Measured quantity
Maximum first principal stress on the lower surface at point E — reference value 0.802 MPa.

Results comparison

Reference value0.802 МПа (TNSB-1990)
Our result0.8082 МПа (64×64), 0.7929 МПа (32×32)
Deviation1.65%
Tolerance5%
StatusPASS · 1.65%
Element familyShell element
Mesh detailsMITC4-оболочки (параллелограммные элементы, углы 30°/150°), ромб 1×1×0.01 м, Uz=0 по контуру («мягкое» SS), давление 0.7 кПа; сходимость 32×32 → 64×64: 0.7929 → 0.8082 МПа; коэф. Морли 0.000415

Updated: 2026-08-10 · WebCAE solver

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