v0.6.3

Added

• Alternative text for images in README.md
• Test for example files.
• Test for utils.
• Markdown files to declare contribution, governance, code of conduct, and support.
• Documentation of elements with shape function plots.
• Publications page in docs.
• Theory chapter in docs.
• New publication on C/C-SiC plates added to docs.

Changed

• Refactored benchmarks with plots and added them to documentation.
• Improved documentation in truss shape optimization example.
• Integrate shell forces and moments from integration points to enable non-linear materials
• Add basic shell/plasticity.ipynb example.
• Significantly enhanced material testing coverage.
• Renamed data helper API from torchfem.examples.get_example_file(...) to torchfem.data.get_data(...) and moved the module from examples.py to data.py.
• Skip unnecessary stiffness matrix construction during the backward pass to reduce memory and compute overhead.
• Reduce initial GPU memory peaks with chunked index mapping in __init__.

Removed

• The utility functions voigt_strain_rotation and voigt_stress_rotation are not used anywhere. They are removed.
• Dependency on unused memory_profiler. This was replaced by a custom profiling function for benchmarking earlier.

Fixed

• The FPP example was not working correctly after removing retain_graph=True from the sparse solver. Also, detaching f in base was introducing an error here. This is now fixed.
• Fixed bug where external strains were validated against n_nodes instead of n_elem (Thanks to @JulGre).
• Fixed compute_stiffness argument not being properly propagated in integrate_material.