COMPARES DIC DATA CSV WITH SIMULATION¶
Compares a single DIC (Digital Image Correlation) CSV snapshot against the corresponding LS-DYNA simulation state by spatially aligning point clouds and computing displacement fields. Use this worker to validate simulation accuracy against physical full-field measurement data at one specific animation state.
When to use¶
Tagged: csv, d3plot, dic, displacement, ls-dyna, one_state, point_cloud, sim_vs_test.
Inputs¶
| Label | ID | Type | Default | Required | Description |
|---|---|---|---|---|---|
| DIC CSV File | dic_file_csv | file | — | ✓ | CSV file exported from the DIC system containing full-field surface point coordinates and displacement measurements for the specimen. |
| DTSDC | dic_time_state_disp_csv | textarea | — | ✓ | Comma-separated mapping table (pasted as text) that relates DIC time steps to simulation states and displacement offsets; used to synchronise the two data sources. |
| Simulation ID | simulation_id | remote_lookup | — | ✓ | Platform simulation record ID (resolved via remote lookup) that identifies the LS-DYNA run whose d3plot data will be compared against the DIC snapshot. |
| DIC Rotation Deg | rotation_deg | text | 90 | In-plane rotation (degrees) applied to the DIC point cloud before alignment with the simulation mesh; default 90° corrects the typical camera-to-model orientation difference. | |
| Point Increment | point_increment | text | 4 | Stride used when sub-sampling the DIC point cloud (every Nth point is retained); default 4 reduces memory and runtime while preserving spatial resolution for most specimens. | |
| Time Scale | time_scale | text | 1.0 | Scalar multiplier applied to DIC timestamps to convert them to simulation time units (e.g. ms → s); leave at default 1.0 when both sources share the same time unit. | |
| DIC Top Percent | top_dic_percent | text | 1 | Fraction (0–1) of the highest-strain DIC points retained for correlation; default 1 keeps all points, reduce to focus the comparison on the most-deformed region. | |
| D3PLOT Anim State | d3plot_anim_state | text | -1.0 | Target d3plot animation state index to extract from the simulation for comparison; default -1.0 selects the final state, set to a positive integer to target a specific frame. |
Outputs¶
| Label | ID | Type | Description |
|---|---|---|---|
| Js3d File | js3d_file | integer | Interactive 3-D JS3D attachment file rendering the overlaid DIC and simulation displacement fields side-by-side for visual correlation review in the platform viewer. |
Disciplines¶
- ai_ml.vision
- cae.postprocessing.extraction
- cae.postprocessing.visualization
- data.correlation
- data.io.csv
Auto-generated from platform schema. Worker id: dic_sim_one_state. Schema hash: de4e8faa3599. Hand-curated docs in workerexamples/ override this page when present.