sectionproperties 1.0.7

A python package for the analysis of arbitrary cross-sections using the finite element method.

A python package for the analysis of arbitrary cross-sections using the finite element method written by Robbie van Leeuwen. sectionproperties can be used to determine section properties to be used in structural design and visualise cross-sectional stresses resulting from combinations of applied forces and bending moments.

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Installation:

For more detailed installation instructions, refer to the documentation.

UNIX (MacOS/Linux):

$ pip install sectionproperties

Windows

Install meshpy by downloading the appropriate installation wheel.

Navigate to the location of the downloaded wheel and install using pip:

$ cd Downloads
$ pip install MeshPy‑2018.2.1‑cp36‑cp36m‑win_amd64.whl

Once meshpy has been installed, sectionproperties can be installed:

$ pip install sectionproperties

Documentation:

sectionproperties has a fully documented python API which you can find at https://sectionproperties.readthedocs.io/. To read more about the theory behind the program, its implementation and some more examples, check out my blog at https://robbievanleeuwen.github.io/.

Current Capabilities:

Pre-Processor:

• [x] Python API

• [x] Custom section geometry input

• [x] Common section geometry generators

• [x] Multiple geometry merging

• [x] Perimeter offset tool

• [x] Geometry cleaning

• [ ] JSON input file

• [ ] .dxf import

• [x] Quadratic triangular mesh generation

• [x] Composite material properties

Cross-Section Analysis:

• [x] Global axis geometric section properties:

  • [x] Area

  • [x] Perimeter

  • [x] First moments of area

  • [x] Second moments of area

  • [x] Elastic centroid

• [x] Centroidal axis geometric section properties:

  • [x] Second moments of area

  • [x] Elastic section moduli

  • [ ] Yield moment

  • [x] Radii of gyration

  • [x] Plastic centroid

  • [x] Plastic section moduli

  • [x] Shape factors

• [x] Principal axis geometric section properties:

  • [x] Second moments of area

  • [x] Elastic section moduli

  • [ ] Yield moment

  • [x] Radii of gyration

  • [x] Plastic centroid

  • [x] Plastic section moduli

  • [x] Shape factors

• [x] Warping section properties:

  • [x] Torsion constant

  • [x] Warping constant

• [x] Shear section properties:

  • [x] Shear centre (elastic method)

  • [x] Shear centre (Trefftz’s method)

  • [x] Shear areas (global axis)

  • [x] Shear areas (principal axis)

• [x] Cross-section stresses

Solver:

• [x] Direct solver

• [x] CGS iterative solver

• [x] Sparse matrices

Post-Processor:

• [x] Plot geometry

• [x] Plot mesh

• [x] Plot centroids

• [x] Plot cross-section stresses

• [x] Retrieve cross-section stresses

• [ ] Generate cross-section report

• [ ] Export to Paraview

Additional Modules:

• [ ] Optimisation

• [ ] Reinforced Concrete

• [ ] Steel