2D_ElastoPlastoDynamics: 2D dynamic non-linear structural mechanics dataset, with a non-linear non-local constitutive law

This dataset contains 2D dynamic non-linear structural mechanics with a non-linear non-local constitutive law.

The files format is PLAID, see the plaid documentation.

The variablity in the samples is the geometry (mesh). Outputs of interest are 3 transient fields: x and y components of the displacement at the nodes and the erosion status at the elements.

The dataset has a training set of size 1000 and a testing set of size 18. Outputs are not provided on the testing sets. 

Tips to access the data:

After decompressing the downloaded file:

from plaid.containers.dataset import Datasetfrom plaid.problem_definition import ProblemDefinition

dataset = Dataset()problem = ProblemDefinition()

problem._load_from_dir_(os.path.join(/path/to/data,'problem_definition'))dataset._load_from_dir_(os.path.join(/path/to/data,'dataset'), verbose = True)

print("problem =", problem)print("dataset =", dataset)

ids_train = problem.get_split('train')

ids_test  = problem.get_split('test')

sample_train_0 = dataset[ids_train[0]]

sample_test_0 = dataset[ids_test[0]]

print(sample_train_0)

print(sample_test_0)

sample = sample_train_0

# inputs

mesh = sample.get_mesh()

mesh = sample.get_mesh(time=0.01, apply_links=True, in_memory=True)# links to mesh at time=0 since mesh is constant

print(mesh)

# outputs

for fn in ["U_x", "U_y"]:

    field = sample.get_field(fn, time=0.01)

    print(field)

field = sample.get_field("EROSION_STATUS", location="CellCenter", time=0.01)

print(field)