FElupe: Finite Element Analysis

• Add more hyperelastic material formulations: Saint Venant-Kirchhoff, Mooney-Rivlin, Arruda-Boyce, Extended Tube and Van der Waals.
• Add BiQuadraticQuad element (as a permuted version of ArbitraryOrderLagrangeElement).
• Add Quadratic element.
• Add new arguments for more flexible region templates, e.g. RegionQuad(mesh, quadrature=GaussLegendre(order=1, dim=2), grad=True).
• Add support for triangle/tetra in FieldsMixed().
• Add optional state variables to UserMaterialHyperelastic(model, nstatevars=0).
• Add finite-strain viscoelastic material formulation.

• Switch to a src/-layout.
• Import base-element class as element.Element().
• Auto-detect min/max-coordinates of mesh-points for loadcases if dof.uniaxial(right=None).
• Ensure compatibility with tensortrax>0.6.0 (Van-der-Waals and Viscoelastic models).

• Fix rotation matrix for a rotation around the y-axis.

• Add more hyperelastic material formulations by @adtzlr in https://github.com/adtzlr/felupe/pull/369
• Fix rotation matrix around y-axis by @adtzlr in https://github.com/adtzlr/felupe/pull/370
• Add QuadraticQuad() and BiQuadraticQuad() elements by @adtzlr in https://github.com/adtzlr/felupe/pull/371
• Add support for dual triangle/tetra-regions by @adtzlr in https://github.com/adtzlr/felupe/pull/373
• Switch to src/-layout by @adtzlr in https://github.com/adtzlr/felupe/pull/374
• Add optional state variables to UserMaterialHyperelastic(nstatevars=0) by @adtzlr in https://github.com/adtzlr/felupe/pull/377
• Import base-element class element.Element() by @adtzlr in https://github.com/adtzlr/felupe/pull/378
• Change loadcases: Detect Min/Max Coordinates of mesh.points by @adtzlr in https://github.com/adtzlr/felupe/pull/381
• Fix tensortrax>0.6.0 compatibility by @adtzlr in https://github.com/adtzlr/felupe/pull/382

Full Changelog: https://github.com/adtzlr/felupe/compare/v6.2.5...v6.3.0