v6.2.5

[6.2.5] - 2023-01-02

Fixed

• Once again fix init if tensortrax is not installed.

What's Changed

• Fix import of UserMaterialHyperelastic by @adtzlr in #367

Full Changelog: v6.2.4...v6.2.5

v6.2.4

[6.2.4] - 2023-01-01

Changed

• Update actions used in CI/CD workflows.

v6.2.3

[6.2.3] - 2023-01-01

Changed

• Remove setup.cfg, change pyproject.toml and store the version tag only once within the source code (__about__.py).

What's Changed

• Change pyproject.toml by @adtzlr in #362

Full Changelog: v6.2.2...v6.2.3

v6.2.2

[6.2.2] - 2022-12-20

Fixed

• Fix init if tensortrax is not installed.

What's Changed

• Fix init if tensortrax is not installed. by @adtzlr in #360

Full Changelog: v6.2.1...v6.2.2

v6.2.1

[6.2.1] - 2022-12-19

Fixed

• Fix version string.

What's Changed

• fix version string by @adtzlr in #359

Full Changelog: v6.2.0...v6.2.1

v6.2.0

[6.2.0] - 2022-12-16

Added

• Add Total-Lagrange UserMaterialHyperelastic(fun, parallel=False, **kwargs) based on optional tensortrax. Only available if tensortrax is installed.
• Add constitutive isotropic hyperelastic model formulations to be used with UserMaterialHyperelastic() (constitution.ogden(C, mu, alpha), etc.).

Auto-Generated Release-Notes

What's Changed

• Add UserMaterialHyperelastic() by @adtzlr in #355
• Make tensortrax optional by @adtzlr in #357
• Add models for isotropic hyperelasticity UserMaterialHyperelastic() by @adtzlr in #358

Full Changelog: v6.1.0...v6.2.0

v6.1.0

[6.1.0] - 2022-12-10

Changed

• Enhance plotting with custom x- and y-data in CharacteristicCurve.plot(x, y) and allow a list of items for force evaluation in CharacteristicCurve(items=[...]) to be passed.
• Enhance math.linsteps(points=[0, 5, 0], num=[5, 10]) by supporting a list of substeps.
• Enhance compression of shear loadcase: Apply the compression on the bottom and the top dof.shear(compression=(0, 0)).

Auto-Generated Release-Notes

What's Changed

• Enhance CharacteristicCurve(items=[...]).plot(x, y) by @adtzlr in #350
• Enhance linsteps by supporting a list of substeps by @adtzlr in #352
• Enhance dof.shear(compression=(0, 0) by @adtzlr in #354

Full Changelog: v6.0.0...v6.1.0

v6.0.0

[6.0.0] - 2022-11-20

Added

• Add project(mean=True) to project cell mean-values to mesh-points. Now project() supports Triangles and Tetrahedrons.
• Add RegionBoundary.mesh_faces() for a mesh with face-cells on the selected boundary of a region.
• Add pseudo-elastic material OgdenRoxburgh() which may be used with SolidBodyNearlyIncompressible().
• Add umat = UserMaterial(stress, elasticity, nstatevars=0, **kwargs) with user-defined functions for the (first Piola-Kirchhoff) stress tensor P, statevars_new = umat.gradient([F, statevars], **kwargs) and the according fourth-order elasticity tensor A = umat.hessian([F, statevars], **kwargs) based on the deformation gradient.
• Add UserMaterialStrain() for small-strain based user-defined material formulations with an umat-interface suitable for elastic-plastic frameworks.
• Add LinearElasticPlasticIsotropicHardening() which is based on UserMaterialStrain() and constitution.linear_elastic_plastic_isotropic_hardening().
• Add new math helpers math.ravel() and math.reshape().
• Add optional axis argument on which the norm is evaluated math.norm(axis=None).

Changed

• Unify material definition with methods for the stress P, statevars_new = umat.gradient([F, statevars]) and the elasticity tensor A = umat.hessian([F, statevars]). This breaks support for materials defined by matadi<=0.1.10.
• Do not broadcast the (constant) elasticity tensor for linear-elastic materials as einsumt>=0.9.3 supports broadcasting along the parallel-executed dimension.
• Change not-updating attribute of FieldContainer(fields).values to a method FieldContainer(fields).values() which returns the current field values.

Removed

• Remove unused SolidBodyTensor() and SolidBodyTensorNearlyIncompressible().
• Remove unused region argument of LinearElastic().hessian().

Auto-Generated Release-Notes

What's Changed

• Add project(mean=True) by @adtzlr in #329
• Add RegionBoundary.mesh_faces() by @adtzlr in #334
• Add pseudo-elastic material OgdenRoxburgh() by @adtzlr in #335
• Unify umat for hyperelastic and tensor-based material formulations by @adtzlr in #339
• Do not broadcast linear-elastic elasticity tensor by @adtzlr in #342
• FieldContainer: Change attribute values to method values() by @adtzlr in #344
• Add UserMaterialStrain() by @adtzlr in #346
• Enhance and Fix the Documentation by @adtzlr in #347

Full Changelog: v5.3.1...v6.0.0

v5.3.1

Changelog since [5.3.0] - 2022-11-03

Fixed

• Fix volume evaluation of (nearly) incompressible solids for axisymmetric fields.

Auto-Generated Release-Notes

What's Changed

• Fix incompressible solid: Wrong volume evaluation for axisymmetric fields by @adtzlr in #327

Full Changelog: v5.3.0...v5.3.1

v5.3.0

Changelog since [5.2.0] - 2022-10-08

Added

• Add optional pre-compression to shear-loadcase dof.shear(compression=0.0).
• Add MeshContainer and string-representation for Mesh objects.
• Add a mesh-reader using meshio mesh.read(filename, ...).
• Add SolidBodyNearlyIncompressible(umat, field, bulk) for (nearly) incompressible solids and a given (distortional-part only) constitutive material formulation. This is a pure displacement-based alternative to the three-field-formulation technique.

Changed

• Support an optional user-defined meshio-object in Job().evaluate(mesh=None, filename="result.xdmf").
• Support a distortional-part only Neo-Hookean material formulation with no bulk modulus defined NeoHooke(mu=1.0).

Fixed

• Fix missing ArbitraryOrderLagrangeElement.points attribute.
• Fix ignored mask only_surface=True for RegionBoundary().mesh.cells_faces.
• Set default pressure to zero in SolidBodyPressure().
• Take the mesh from the global x0-field if x0 is passed to job.evaluate(x0=...).
• Fix missing update of global field x0 in job.evaluate(x0) after each completed substep.

Auto-Generated Release-Notes

What's Changed

• Add points attribute to lagrange element by @adtzlr in #301
• Add pre-compression to shear loadcase by @adtzlr in #305
• Fix ignored surface mask for cells_faces of RegionBoundary by @adtzlr in #307
• Add MeshContainer and string-representation for Mesh objects by @adtzlr in #312
• Enhance Mesh-Container by @adtzlr in #313
• Add mesh.read(filename, ...) by @adtzlr in #316
• job.evaluate(x0=...): Take mesh from global field x0 if present by @adtzlr in #320
• Add SolidBodyNearlyIncompressible(umat, field, bulk) by @adtzlr in #323
• Fix missing update of x0 in job.evaluate(x0) after each completed substep by @adtzlr in #324

Full Changelog: v5.2.0...v5.3.0