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Semi-analytical methods for plates, shells and stiffened panels

Linear static analyses, with field outputs of displacements, strains and stresses
Linear buckling
Vibration, with or without pre-stress
Panel flutter using the piston theory
Geometrically non-linear static analyses (postbuckling) using the Newton-Raphson method or the arc-length methods of Riks and Crisfield
Multi-domain assemblies of cylinders, stiffened panels and panels with debonding defects

The structural matrices are solved with structsolve.

Citing this library

Saullo G. P. Castro, Nathan D'Souza. (2026). Semi-analytical methods for plates, shells and stiffened panels (Version 0.6.8). Zenodo. DOI: https://doi.org/10.5281/zenodo.2541522.

Documentation

The documentation is available on: https://saullocastro.github.io/panels.

Installation

To get the latest version:

python -m pip install panels

History

See CHANGELOG.md for the details of each version.

version 0.6.8 (2026-09-17)
- Fixed StiffPanelBay.add_panel and the partial-domain integration of Shell.calc_kC, calc_kG and calc_kM
- Reproduction of Stamatelos and Labeas (Computation 2023, 11, 110) in notebooks/stamatelos_labeas_2023.ipynb
- Tangent stiffness matrix that is the exact derivative of the internal force vector, giving quadratic convergence to the Newton-Raphson method
- Shell and MultiDomain can be passed directly to structsolve.Analysis, including the arc-length methods
- Gauss-Legendre points and weights from scipy.special.roots_legendre
- Modules of the models renamed without the _bardell suffix
- Sphinx documentation with usage examples
versions 0.5.x
- Damaged multidomain connections
up to version 0.3.x
- Multidomain methods for pristine structures

License

Distributed under the 3-Clause BSD license (https://raw.github.com/saullocastro/panels/master/LICENSE).

Contact: S.G.P.Castro@tudelft.nl

Metadata

Release files for panels 0.6.8

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for panels 0.6.8
File	Size	Uploaded
panels-0.6.8.tar.gz	3.0 MB	Sep 17, 2026	Details

Built distributions (wheels)

Table of built distributions (wheels) for panels 0.6.8
File	Interpreter	ABI	Platform	Reset
panels-0.6.8-cp314-cp314-win_amd64.whl 1.8 MB Sep 17, 2026	CPython 3.14	CPython 3.14	Windows x86-64	Details
panels-0.6.8-cp314-cp314-manylinux2014_x86_64.manylinux_2_17_x86_64.manylinux_2_28_x86_64.whl 15.4 MB Sep 17, 2026	CPython 3.14	CPython 3.14	Linux glibc 2.28+ x86-64, Linux glibc 2.17+ x86-64	Details
panels-0.6.8-cp314-cp314-macosx_10_15_universal2.whl 3.9 MB Sep 17, 2026	CPython 3.14	CPython 3.14	macOS 10.15+ universal2 (ARM64, x86-64)	Details
panels-0.6.8-cp313-cp313-win_amd64.whl 1.8 MB Sep 17, 2026	CPython 3.13	CPython 3.13	Windows x86-64	Details
panels-0.6.8-cp313-cp313-manylinux2014_x86_64.manylinux_2_17_x86_64.manylinux_2_28_x86_64.whl 15.5 MB Sep 17, 2026	CPython 3.13	CPython 3.13	Linux glibc 2.17+ x86-64, Linux glibc 2.28+ x86-64	Details
panels-0.6.8-cp313-cp313-macosx_10_13_universal2.whl 3.9 MB Sep 17, 2026	CPython 3.13	CPython 3.13	macOS 10.13+ universal2 (ARM64, x86-64)	Details
panels-0.6.8-cp312-cp312-win_amd64.whl 1.8 MB Sep 17, 2026	CPython 3.12	CPython 3.12	Windows x86-64	Details
panels-0.6.8-cp312-cp312-manylinux2014_x86_64.manylinux_2_17_x86_64.manylinux_2_28_x86_64.whl 15.5 MB Sep 17, 2026	CPython 3.12	CPython 3.12	Linux glibc 2.17+ x86-64, Linux glibc 2.28+ x86-64	Details
panels-0.6.8-cp312-cp312-macosx_10_13_universal2.whl 3.9 MB Sep 17, 2026	CPython 3.12	CPython 3.12	macOS 10.13+ universal2 (ARM64, x86-64)	Details
panels-0.6.8-cp311-cp311-win_amd64.whl 1.8 MB Sep 17, 2026	CPython 3.11	CPython 3.11	Windows x86-64	Details
panels-0.6.8-cp311-cp311-manylinux2014_x86_64.manylinux_2_17_x86_64.manylinux_2_28_x86_64.whl 15.5 MB Sep 17, 2026	CPython 3.11	CPython 3.11	Linux glibc 2.17+ x86-64, Linux glibc 2.28+ x86-64	Details
panels-0.6.8-cp311-cp311-macosx_10_9_universal2.whl 3.9 MB Sep 17, 2026	CPython 3.11	CPython 3.11	macOS 10.9+ universal2 (ARM64, x86-64)	Details
panels-0.6.8-cp310-cp310-win_amd64.whl 1.8 MB Sep 17, 2026	CPython 3.10	CPython 3.10	Windows x86-64	Details
panels-0.6.8-cp310-cp310-manylinux2014_x86_64.manylinux_2_17_x86_64.manylinux_2_28_x86_64.whl 15.1 MB Sep 17, 2026	CPython 3.10	CPython 3.10	Linux glibc 2.17+ x86-64, Linux glibc 2.28+ x86-64	Details
panels-0.6.8-cp310-cp310-macosx_10_9_universal2.whl 4.0 MB Sep 17, 2026	CPython 3.10	CPython 3.10	macOS 10.9+ universal2 (ARM64, x86-64)	Details
panels-0.6.8-cp39-cp39-win_amd64.whl 1.8 MB Sep 17, 2026	CPython 3.9	CPython 3.9	Windows x86-64	Details
panels-0.6.8-cp39-cp39-manylinux2014_x86_64.manylinux_2_17_x86_64.manylinux_2_28_x86_64.whl 15.0 MB Sep 17, 2026	CPython 3.9	CPython 3.9	Linux glibc 2.17+ x86-64, Linux glibc 2.28+ x86-64	Details
panels-0.6.8-cp39-cp39-macosx_10_9_universal2.whl 4.0 MB Sep 17, 2026	CPython 3.9	CPython 3.9	macOS 10.9+ universal2 (ARM64, x86-64)	Details
panels-0.6.8-cp38-cp38-win_amd64.whl 1.8 MB Sep 17, 2026	CPython 3.8	CPython 3.8	Windows x86-64	Details
panels-0.6.8-cp38-cp38-manylinux2014_x86_64.manylinux_2_17_x86_64.manylinux_2_28_x86_64.whl 14.6 MB Sep 17, 2026	CPython 3.8	CPython 3.8	Linux glibc 2.17+ x86-64, Linux glibc 2.28+ x86-64	Details
panels-0.6.8-cp38-cp38-macosx_11_0_universal2.whl 3.8 MB Sep 17, 2026	CPython 3.8	CPython 3.8	macOS 11.0+ universal2 (ARM64, x86-64)	Details

Total release size: 149.6 MB

Release files / panels-0.6.8.tar.gz

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Size	3.8 MB
Tags	CPython 3.8 macOS 11.0+ universal2 (ARM64, x86-64)
SHA-256 checksum How to use checksums	`d9ed03da78f7d92fa8e8ba00bdf74923da6b56a416936854647c4525f6e70b66`
BLAKE2b-256 checksum How to use checksums	`c0aa914c10a5d2b031b6ac0f6a309ff1ff3c624cef492f49130c0db9873d2e8f`
Upload date	Sep 17, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/6.1.0 CPython/3.8.10`