suanPan v4.3

suanPan is a powerful finite element method (FEM) simulation platform for solid mechanics, civil engineering, structural engineering and earthquake engineering. It combines a fast modern C++ core with a flexible, command-driven modelling language, making it suitable for research, teaching and demanding engineering analysis.

From small validation models to large-scale nonlinear simulations, suanPan brings analysis procedures, element formulations, material models and high-performance solvers together in one integrated, cross-platform application.

• Static and nonlinear static analysis
• Dynamic and seismic analysis with implicit and explicit time integration
• Arc-length continuation and collapse analysis
• Frequency, eigenvalue and buckling analysis
• Structural optimization workflows
• Response spectrum and single-degree-of-freedom response tools

• Beam, truss, membrane, plate, shell, solid, contact, joint, embedded, mass and spring elements
• Elastic, plastic, damage, viscoelastic, hysteretic, orthotropic and geotechnical material models
• Metal plasticity, concrete damage, soil and user-defined constitutive models
• Structural, fibre and NM section models with code-based design support
• Constraints for multi-point connections, rigid walls, embedding, gaps and particle collision
• A rich collection of load types, recorders and analysis steps

• Shared-memory parallelism with Intel TBB
• Distributed-memory parallelism with MPI for cluster simulations
• Optional GPU acceleration with CUDA and MAGMA
• Optimized sparse direct solvers and linear algebra backends, including Intel oneMKL, OpenBLAS and AOCL
• Native builds for Linux, Windows and macOS on both AMD64 and ARM64

• Clear, human-readable, command-based input files
• Interactive console with a guided overview introduction
• Batch analysis with suanPan -f model.sp
• VTK output for post-processing and visualization in ParaView
• Variables, macros and mathematical expressions for reusable models
• Extensive examples, a searchable online manual and a VS Code extension with syntax highlighting and autocompletion

• Researchers developing and validating numerical models and algorithms
• Civil, structural and earthquake engineers performing nonlinear analysis
• Educators and students learning finite element methods
• Engineers working with material calibration, contact, buckling, dynamics and optimization

Launch suanPan from a terminal:

flatpak run io.github.tlcfem.suanPan

At the prompt, type overview for a guided introduction. To run an existing model file:

flatpak run io.github.tlcfem.suanPan -f model.sp

This Flathub build includes VTK-based visualization support and uses Intel oneMKL on x86_64 and OpenBLAS on aarch64 for linear algebra.

• Manual: https://tlcfem.github.io/suanPan-manual/latest/
• Examples: https://github.com/TLCFEM/suanPan/tree/dev/Example
• Source code and issue tracker: https://github.com/TLCFEM/suanPan
• Project website: https://suanpan.tlcfem.top

suanPan is free and open-source software, distributed under the GNU General Public License v3.0 or later.