| # # # # material_fracturing data archive readme # # # # | |
| # # # # Approved for unlimited release LA-UR-25-22599. # # # # | |
| # # # PHASE-FIELD # # # | |
| 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.): | |
| 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 | |
| │ └── ... | |
| ... | |
| 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: | |
| frac_pull_{bc}_{modnum}.h5 | |
| where {bc} represents the boundary condtion types [z,xz] (uniaxial,biaxial) {modnum} represents the simulation (or model) number. | |
| # # Stucture of each .h5 file # # | |
| Each HDF5 file contains fracture simulatio ndata and is orgnize by a consistent set of keys: | |
| grid points | |
| dtype: int32 | |
| The number of gird points in the simulation. | |
| model {modnum} break time | |
| float | |
| Represents the simulation time-to-failure. | |
| 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 | |
| model {modnum} fracture initial | |
| numpy array of shape (128,128) | |
| dtype: float32 | |
| The initial (unfractured) state of the model before any deformation. | |
| model {modnum} fracture final | |
| numpy array of shape (128,128) | |
| dtype: float32 | |
| The final fracture configuration at the time-to-failure. | |
| origin | |
| dtype: int32 | |
| Represents the origin coordinate. | |
| spacing | |
| dtype: int32 | |
| Represents the simulation spacing. | |
| # .h5 file keys example # | |
| == 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 | |
| # # # HOSS # # # | |
| 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.): | |
| 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 | |
| └── ... | |
| Each .tar.gz archive holds 1000 compressed HDF5 (.h5) files. The .h5 files are named using the following convention: | |
| frac_pull_z_{modnum}.h5 | |
| where {modnum} represents the simulation (or model) number. | |
| # # Structure of each .h5 file # # | |
| Each HDF5 file contains fracture simulation data and is organized by a consistent set of keys: | |
| model {modnum} break time | |
| float | |
| Represents the simulation time-to-failure. | |
| 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). | |
| 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. | |
| 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. | |
| unique lines | |
| int | |
| The total number of unique edge segements in simulation that represents the unstructured grid. | |
| # .h5 file keys example # | |
| == 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 | |
| # Plots # | |
| frac_pull_z_15941.gif | |
| An example .gif of a single simulation as the fracture patterns evolve. | |
| # DATA # | |
| extract_h5.py | |
| An example .py file for opening data from an example .h5 file. | |