Airbag deploy postprocessing

This example shows how to animate the d3plot and display the stress on the airbag.

Perform required imports

Import required imports.

from ansys.dpf import core as dpf

Connect to DPF Server

Connect to the DPF Server.

dpf.connect_to_server()

Load model

Load the model and print the contents of the model. All parts in the model are shell parts. Model information includes the result components and the number of states available in the d3plot.

""" ds = dpf.DataSources()
ds.set_result_file_path(r'D:\PYDYNA_BETA_V.0.1\example-data\pydyna\Airbag\d3plot', 'd3plot')
model = dpf.Model(ds)
print(model) """

" ds = dpf.DataSources()\nds.set_result_file_path(r'D:\\PYDYNA_BETA_V.0.1\\example-data\\pydyna\\Airbag\\d3plot', 'd3plot')\nmodel = dpf.Model(ds)\nprint(model) "

Extract stress on all parts

Extract the stress on all the parts. The stress fields container is scoped to all time frequencies to be able to animate the change in stress on the airbag fabric.

""" stress = model.results.stress.on_all_time_freqs()
stress.inputs.data_sources(ds)
stress.inputs.requested_location.connect("Nodal")
fieldsStr = stress.outputs.fields_container()"""

' stress = model.results.stress.on_all_time_freqs()\nstress.inputs.data_sources(ds)\nstress.inputs.requested_location.connect("Nodal")\nfieldsStr = stress.outputs.fields_container()'

Extract stress on mid integration point

In the d3plot file, the shell stress is reported at three through-thickness points by default. Extract the stress on the mid integration point.

""" shell_layer_extract = dpf.operators.utility.change_shell_layers()
shell_layer_extract.inputs.fields_container.connect(fieldsStr)
shell_layer_extract.inputs.e_shell_layer.connect(dpf.common.shell_layers.mid.value)
fields_top = shell_layer_extract.outputs.fields_container_as_fields_container() """

' shell_layer_extract = dpf.operators.utility.change_shell_layers()\nshell_layer_extract.inputs.fields_container.connect(fieldsStr)\nshell_layer_extract.inputs.e_shell_layer.connect(dpf.common.shell_layers.mid.value)\nfields_top = shell_layer_extract.outputs.fields_container_as_fields_container() '

Plot deformed state

Plot the deformed state at 9 milliseconds.

""" N = fields_top[19]
D = model.results.displacement(time_scoping=[19]).eval()
N.plot(deform_by=D[0],show_edges=False) """

' N = fields_top[19]\nD = model.results.displacement(time_scoping=[19]).eval()\nN.plot(deform_by=D[0],show_edges=False) '

Display stress field and set mesh

Display the stress field and set the mesh to deform by the displacement of the nodes.

""" disp = model.results.displacement.on_all_time_freqs.eval()
fields_top.animate(deform_by=disp,show_edges=False) """

' disp = model.results.displacement.on_all_time_freqs.eval()\nfields_top.animate(deform_by=disp,show_edges=False) '