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๐Ÿงฎ An Open Source, Parallel and Heterogeneous Finite Element Analysis Framework

Home Page: https://tlcfem.github.io/suanPan-manual/latest/

License: GNU General Public License v3.0

CMake 0.37% C++ 74.70% TeX 0.30% Batchfile 0.01% Shell 0.04% C 22.01% Fortran 2.13% Go 0.02% Forth 0.01% Inno Setup 0.02% Python 0.03% Dockerfile 0.04% PowerShell 0.01% CSS 0.33%
fem hpc iga contact dynamics phase-field couple-stress nonviscous structural-engineering seismic-engineering

suanpan's Introduction

^(?:Dr\.\s)?Theodor(?:e)?\s[^ABD-Z]hang$

  • โŽ engineer
  • โœ… bug breeder
    • ๐Ÿ‘ early returner
    • ๐Ÿ‘ never nester
    • ๐Ÿ‘ one liner

I am interested in the following computational mechanics related topics:

  1. couple stress theory
  2. phase field theory
  3. dynamics
  4. contact and constraint
  5. topology optimisation
  6. constitutive modelling
  7. finite element formulation

Check my CV or ORCID logo if you wish.

Software

  1. suanPan ๐Ÿงฎ An Open Source, Parallel and Heterogeneous Finite Element Analysis Framework

    Please feel free to contact me if you are interested in implementing your research work on suanPan. I am happy to collaborate in this regard.

  2. Damping Dolphin ๐Ÿฌ A utility to visualise and generate parameter sets for use in the damping model

  3. Alcongrator ใ€ฐ A utility to generate ground motion history based on given records

  4. VPMR ๐Ÿฅท C++/Python implementation of the VPMR algorithm

  5. motion-base ๐ŸŒ A ground motion database

Books

  1. Constitutive Modelling Cookbook A reference book on constitutive modelling.

    PDF file is accessible.

  2. Introduction to Structural Steel A textbook on structural steel in accordance with the AU/NZ standards.

    PDF file is accessible.

Publication Resources

The following repositories contain source code and example models of some publications. Please feel free to cite and use graphs, tables, etc., when necessary.

  1. nme gcmq-ijnme A new drilling quadrilateral membrane element with high coarse-mesh accuracy using a modified Hu-Washizu principle doi:10.1002/nme.6066
  2. es application-es Numerical evaluations of a novel membrane element in simulations of reinforced concrete shear walls doi:10.1016/j.engstruct.2019.109592
  3. es response-history-application-es Numerical evaluations of a novel membrane element in response history analysis of reinforced concrete shear walls doi:10.1016/j.engstruct.2020.110760
  4. mssp generalised-damper-algorithm-mssp Numerical simulation of generalised Maxwell-type viscous dampers with an efficient iterative algorithm doi:10.1016/j.ymssp.2021.108795
  5. arxiv couple-stress-formulation-arxiv New mixed formulation and mesh dependency of finite elements based on the consistent couple stress theory arXiv:2207.02544
  6. jse nm-formulation Reformulation of concentrated plasticity frame element with N-M interaction and generalised plasticity doi:10.1061/JSENDH.STENG-12176
  7. mssp nonviscous-implementation A strategy for fast evaluation of nonviscously damped systems with arbitrary kernels doi:10.1016/j.ymssp.2024.111156
  8. ueqe dsp-dynamics Spurious response due to linear interpolation of input load and some remedies doi:10.1080/13632469.2024.2372814

suanpan's People

Contributors

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suanpan's Issues

Duncan-Selig hyperbolic soil model

Feature
Hello, excited about trying out this library for structural analysis.

The geotechnical analysis capability is great, but it is limited by the number of soil models. A great addition would be the Duncan-Selig hyperbolic soil model (modified somewhat recently by Katona, to take into account residual deformation during unloading).

The Duncan-Selig model is the gold standard for analysis of structural problems in which soil is the dominant load carrying component in a soil-structure system, such as in buried flexible culverts. In fact the AASHTO LRFD design code requires FEA to be performed for some classes of buried culverts, such as corrugated metal structures with deep corrugations. The only free FEA program available for this kind of FEA using the Duncan-Selig model is CANDE, and although it is still being actively updated, it is not open source and long periods of time pass between updates. It is also 2D only, the preprocessor and postprocessor are woefully out of date, and it is just dad-blamed tough to use. A more modern open source option like suanPan would be most welcome by the geotechnical engineering community.

References
Modified Duncan-Selig model by Katona

Document about case file format

Hi,

Just wondering where is the document located, so I can prepare a case file.

I have run one case. How do I get an VTK output?

Cheers,

Cean

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