updating_cover…

README.rst
View Options

			custom-material
			'''''''''''''''

			In ``custom-material.py`` it is shown how to create a custom material behaviour. In this example, a linear elastic
			material is recreated. It is done by creating a class that inherits from ``aka.Material`` and register it
			to ``MaterialFactory``::

			class LocalElastic(aka.Material):
			[...]

			def allocator(_dim, unused, model, _id):
			return LocalElastic(model, _id)

			mat_factory = aka.MaterialFactory.getInstance()
			mat_factory.registerAllocator("local_elastic", allocator)

			Wave propagation of a pulse in a bar fixed on the top, bottom and right boundaries is simulated using an explicit
			scheme. Results are shown in :numref:`fig-ex-plate_bar_custom`.

			.. _fig-ex-plate_bar_custom:
			.. figure:: examples/python/solid_mechanics_model/custom-material/images/pulse_bar_custom.gif
			:align: center
			:width: 90%

			Wave propagation in a bar.

			In ``bi-material.py``, the same principle is used to create a bimaterial square. The displacement is shown in :numref:`fig-ex-square_custom`.

			.. _fig-ex-square_custom:
			.. figure:: examples/python/solid_mechanics_model/custom-material/images/square_displ.png
			:align: center
			:width: 40%

			Bimaterial square.