Get to know the MRESS Solid-Shell Element Class

Description of the element's Class; its constructor and Public Methods that can be used.

Mesh Convergence Results

Twisted Strip Benchmark: A rigorous convergence test with mesh refinement, comparing Abaqus C3D8 and C3D8i elements with the MRESS API.

Designed to push the limits of element performance under extreme warping, transverse shear, and bending loads.

The MRESS solid-shell API achieves significantly faster convergence compared to Abaqus C3D8 and C3D8i elements.

Explore the gallery for an in-depth analysis of the mesh convergence results.

Pinched Cylinder Benchmark: A renowned test for validating elements in thin-walled structures under bending and transverse shear.

The MRESS solid-shell API achieves significantly faster convergence compared to Abaqus C3D8 and C3D8i elements.

Explore the gallery for an in-depth analysis of the results.

Check gallery below for the MRESS-API post-processed results on our GUI

Check gallery below for the MRESS-API post-processed results on our GUI

Check gallery below for an Aircraft wing (Skin + C-Spar) with a tip loading example fully modeled with the MRESS-API

Constituents of the API package

Stiffness Matrix (available now)

Stiffness matrix for the MRESS solid-shell element. Required for linear and nonlinear analysis.

Geometric Stiffness Matrix (available soon)

Geometric (Initial Stresses) Stiffness matrix for the MITC4 shell element. It is required for nonlinear analysis with implicit time integration scheme.

Internal Forces (available soon)

Internal Force Vector for the MRESS solid-shell element. Critical for nonlinear analysis with implicit time integration schemes.

Strain Tensor (available now)

Calculates the deformation tensor at the Gauss Points (GP) of the MRESS solid-shell element.

Rotation of local axes at the Gauss Points. Important for nonlinear co-rotational analysis, e.g. rotation of planar plastic anisotropic axes, rotation of composites ply axes at the GPs.

Axes Rotation at the GPs (available now)

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We will provide a C++ template demonstrating the use of our API for linear elastic analysis for a subscription of one year or above. This template leverages key API components, including the Stiffness Matrix and Strain Tensor, evaluated at all integration points of the element.

The template incorporates multi-threading with OpenMP to accelerate the computation of the Stiffness Matrix and the Strain Tensor, delivering performance gains of approximately 2.5x when using 6 threads.

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Available with Business subscription

We have a comprehensive pre-processor and post-processor GUI for our APIs. The pre-processor imports mesh data and generates the input data for the API. The post-processor enables the visualisation of results. More details for the GUI can be found here.

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