Orthotropic solids · VNV-ORTHOTROPIC-SOLID-EXTERNAL-002

Orthotropic bracket and perforated specimen correlation

Two same-mesh three-dimensional orthotropic cases compare displacement fields with CalculiX and Code_Aster.

Internal review accepted with recommendationsCampaign version 0.2.0

Read the recorded results ← All calculation cases

Orthotropic TET4 L bracket displacement field with deformed shape. — Orthotropic L bracket, TET4. Displacement visualization; the display is amplified 754 times.

Recorded values

Main observables and references

Values come from the linked campaign record. Acceptance thresholds are shown separately from observed results.

Perforated field difference0.000132% / 3.60 × 10⁻¹¹%CalculiX / Code_Aster

L bracket field difference0.000116% / 3.42 × 10⁻¹⁰%CalculiX / Code_Aster

Model and execution

What was calculated?

The campaign includes an L bracket and a perforated specimen.
QF Solver, CalculiX 2.20 and Code_Aster 18.1.0 use the same meshes, constraints and loads.
The figures show displacement fields; they are not stress convergence plots.

How to read the evidence

What the results say

For the perforated specimen, full displacement field differences are 0.000132% against CalculiX and 3.60 × 10⁻¹¹% against Code_Aster.
For the L bracket, differences are 0.000116% against CalculiX and 3.42 × 10⁻¹⁰% against Code_Aster.
The review also records eight refinements with fixed-distance paths and band averages for singular stress regions. Its nodal peaks are not interpreted as finite, converged point values; the L-bracket Code_Aster comparison uses integration-point observables.

Additional figures from this calculation

Select a figure to inspect it at full size. Captions state the quantity, comparison and any display amplification available in the source.

Orthotropic perforated TET4 specimen with displacement field and deformed shape. — Perforated orthotropic specimen, TET4. Color represents the displayed displacement field.

Scope boundary

Where this case stops

The comparisons cover homogeneous linear orthotropy and identical meshes.
The stress acceptance decision applies to its specified path and band observables. It does not qualify a singular nodal peak, composite damage or a continuously varying fibre field.

Open the calculation method

These white box sheets explain the element, constitutive law or numerical method used by this case.

White box sheetOrthotropic elasticity White box sheetTET4 element formulation White box sheetExternal correlation method

Reproduce and inspect the source

The source paths below are pinned to one repository commit. Opening the current site does not rerun the original calculation.

Mechanical reviewdocs/verification/revue_solides_orthotropes.mdExternal comparison campaign scriptscripts/run_orthotropic_external_vnv.py

Figure and source snapshot e367fe58b2b9ebb4aef321424ca775e80e82d9ca. Campaign execution version: 0.2.0. Current site release and original calculation version identify different events.

Related cases

Other recorded calculations in this family.

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