| # # # # material_fracturing data archive readme # # # # |
| # # # # Approved for unlimited release LA-UR-25-22599. # # # # |
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| # # # PHASE-FIELD # # # |
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| This repository contains simulation output data organizedi into compressed .tag.gz archives of HDF5 (.h5) files. The data is goruped under 5 different material directories and 2 boundary condition subdirectories containing a sequence of tarballs (e.g.): |
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| PHASE-FIELD/ |
| ├── aluminum/ |
| │ ├── combined_bc/ |
| │ ├── xz_batch_000.tar.gz |
| │ ├── xz_batch_001.tar.gz |
| │ ├── horizontal_bc/ |
| │ ├── z_batch_000.tar.gz |
| │ └── ... |
| ├── pbx/ |
| │ ├── combined_bc/ |
| │ ├── horizontal_bc/ |
| │ ├── z_batch_000.tar.gz |
| │ └── ... |
| └── shale/ |
| │ ├── combined_bc/ |
| │ ├── horizontal_bc/ |
| │ ├── z_batch_000.tar.gz |
| │ └── ... |
| ... |
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| Each .tar.gz archive holds 1000 compressed HDF5 (.h5) files. *the folders that are prepend with 'test_' are for the random orientation files [for our purposes these were used for generalization tests for ML models]*. The .h5 files are named using the following convention: |
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| frac_pull_{bc}_{modnum}.h5 |
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| where {bc} represents the boundary condtion types [z,xz] (uniaxial,biaxial) {modnum} represents the simulation (or model) number. |
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| # # Stucture of each .h5 file # # |
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| Each HDF5 file contains fracture simulatio ndata and is orgnize by a consistent set of keys: |
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| grid points |
| dtype: int32 |
| The number of gird points in the simulation. |
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| model {modnum} break time |
| float |
| Represents the simulation time-to-failure. |
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| model {modnum} fracture at time = {time} |
| numpy array of shape (128,128) |
| dtype: float32 |
| Represents the phase-field scalar variable at each time across the model domain |
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| model {modnum} fracture initial |
| numpy array of shape (128,128) |
| dtype: float32 |
| The initial (unfractured) state of the model before any deformation. |
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| model {modnum} fracture final |
| numpy array of shape (128,128) |
| dtype: float32 |
| The final fracture configuration at the time-to-failure. |
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| origin |
| dtype: int32 |
| Represents the origin coordinate. |
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| spacing |
| dtype: int32 |
| Represents the simulation spacing. |
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| # .h5 file keys example # |
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| == Keys In File == |
| grid points |
| model 100195 break time |
| model 100195 fracture at time = 1.0999999E-04 |
| model 100195 fracture at time = 1.2000000E-04 |
| model 100195 fracture at time = 1.3000000E-04 |
| model 100195 fracture at time = 1.3999999E-04 |
| model 100195 fracture at time = 1.4999999E-04 |
| model 100195 fracture at time = 1.6000000E-04 |
| model 100195 fracture at time = 1.7000000E-04 |
| model 100195 fracture at time = 1.8000000E-04 |
| model 100195 fracture at time = 1.8999999E-04 |
| model 100195 fracture at time = 1.9999999E-04 |
| model 100195 fracture at time = 1.9999999E-05 |
| model 100195 fracture at time = 2.1000000E-04 |
| model 100195 fracture at time = 2.1999999E-04 |
| model 100195 fracture at time = 2.2999999E-04 |
| model 100195 fracture at time = 2.3999999E-04 |
| model 100195 fracture at time = 2.4999998E-04 |
| model 100195 fracture at time = 2.6000000E-04 |
| model 100195 fracture at time = 2.6999999E-04 |
| model 100195 fracture at time = 2.7999998E-04 |
| model 100195 fracture at time = 2.9000000E-04 |
| model 100195 fracture at time = 2.9999999E-04 |
| model 100195 fracture at time = 2.9999999E-05 |
| model 100195 fracture at time = 3.1000000E-04 |
| model 100195 fracture at time = 3.9999999E-05 |
| model 100195 fracture at time = 4.9999999E-05 |
| model 100195 fracture at time = 5.9999998E-05 |
| model 100195 fracture at time = 6.9999995E-05 |
| model 100195 fracture at time = 7.9999998E-05 |
| model 100195 fracture at time = 9.0000001E-05 |
| model 100195 fracture at time = 9.9999997E-05 |
| model 100195 fracture at time = 9.9999997E-06 |
| model 100195 fracture final |
| model 100195 fracture initial |
| origin |
| spacing |
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| # # # HOSS # # # |
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| This repository contains simulation output data organized into compressed .tar.gz archives of HDF5 (.h5) files. The data is grouped under three different material directories containing a sequence of tarballs (e.g.): |
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| HOSS/ |
| ├── pbx/ |
| │ ├── batch_001.tar.gz |
| │ ├── batch_002.tar.gz |
| │ └── ... |
| ├── shale/ |
| │ ├── batch_001.tar.gz |
| │ ├── batch_002.tar.gz |
| │ └── ... |
| └── tungsten/ |
| ├── batch_001.tar.gz |
| ├── batch_002.tar.gz |
| └── ... |
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| Each .tar.gz archive holds 1000 compressed HDF5 (.h5) files. The .h5 files are named using the following convention: |
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| frac_pull_z_{modnum}.h5 |
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| where {modnum} represents the simulation (or model) number. |
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| # # Structure of each .h5 file # # |
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| Each HDF5 file contains fracture simulation data and is organized by a consistent set of keys: |
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| model {modnum} break time |
| float |
| Represents the simulation time-to-failure. |
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| model {modnum} fracture at time = {step}_{time} |
| numpy array of shape (X,7) |
| where X is the total number of edge segments with columns: |
| [p1_x, p1_y, p1_z, p2_x, p2_y, p2_z, damage] |
| p1_x is the x-coordinate position of the 1st point on the edge |
| p1_y is the y-coordinate position of the 1st point on the edge |
| p1_z is the z-coordinate position of the 1st point on the edge |
| p2_x is the x-coordinate position of the 2nd point on the edge |
| p2_y is the y-coordinate position of the 2nd point on the edge |
| p2_z is the z-coordinate position of the 2nd point on the edge |
| damage is the 0.0 to 1.0 value of loss of cohesion (1.0 is complete failure) |
| For more details on cohesion see (Lei, Z., Rougier, E., Knight, E. E., Zang, M. & Munjiza, A. Impact fracture and fragmentation of glass via the 3d combined finite-discrete element method. Applied Sciences 11, 2484 (2021)) |
| Snapshots of the fracture state at discrete simulation time steps. |
| {step}: Sequential index of the snapshot. |
| {time}: Physical simulation time in scientific notation (seconds). |
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| model {modnum} fracture initial |
| numpy array of shape (X,7) |
| where X is the total number of edge segments with columns: |
| [p1_x, p1_y, p1_z, p2_x, p2_y, p2_z, damage] |
| The initial (unfractured) state of the model before any deformation. |
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| model {modnum} fracture final |
| numpy array of shape (X,7) |
| where X is the total number of edge segments with columns: |
| [p1_x, p1_y, p1_z, p2_x, p2_y, p2_z, damage] |
| The final fracture configuration at the time-to-failure. |
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| unique lines |
| int |
| The total number of unique edge segements in simulation that represents the unstructured grid. |
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| # .h5 file keys example # |
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| == Keys In File == |
| model 15941 break time |
| model 15941 fracture at time = 001_0.00000000e+00 |
| model 15941 fracture at time = 002_2.00000000e-09 |
| model 15941 fracture at time = 003_4.00000000e-09 |
| model 15941 fracture at time = 004_6.00000000e-09 |
| model 15941 fracture at time = 005_8.00000000e-09 |
| model 15941 fracture at time = 006_1.00000000e-08 |
| model 15941 fracture at time = 007_1.20000000e-08 |
| model 15941 fracture at time = 008_1.40000000e-08 |
| model 15941 fracture at time = 009_1.60000000e-08 |
| model 15941 fracture at time = 010_1.80000000e-08 |
| model 15941 fracture at time = 011_2.00000000e-08 |
| model 15941 fracture at time = 012_2.20000000e-08 |
| model 15941 fracture at time = 013_2.40000000e-08 |
| model 15941 fracture at time = 014_2.60000000e-08 |
| model 15941 fracture at time = 015_2.80000000e-08 |
| model 15941 fracture at time = 016_3.00000000e-08 |
| model 15941 fracture at time = 017_3.20000000e-08 |
| model 15941 fracture final |
| model 15941 fracture initial |
| unique lines |
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| # Plots # |
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| frac_pull_z_15941.gif |
| An example .gif of a single simulation as the fracture patterns evolve. |
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| # DATA # |
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| extract_h5.py |
| An example .py file for opening data from an example .h5 file. |
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