mindlin_traction — DRIVE tacslip op

• Data kinds: matrix × table → matrix

• Call: import fullseye as fs; fs.ledger.mindlin_traction(r, mp: 'dict') -> 'np.ndarray' (to call the implementation directly, import tacslip; tacslip.mindlin_traction(r, mp: 'dict') -> 'np.ndarray'; from the registry, opsdrive.get("mindlin_traction"))

Usage

Tangential traction q(r) = q′ − q″ [Pa]: q′ = μp0√(1−r²/a²) (r < a), q″ = μp0(c/a)√(1−r²/c²) (r < c). In the slip annulus c ≤ r < a, q = μp(r) (pinned at the Coulomb limit); in the stick circle q < μp. mp is the table of mindlin_partial_slip. Same shape as r. Raises ValueError: mp lacks a/c/mu/p0.

References (sample data, literature)

• Sample-data catalog (download URLs / licences) — 2-D uses skimage.data (BSD/public domain) plus synthetic images; 3-D lists download URLs for real data sources (Stanford, PDS, …).

• Operator provenance and references — the sources of the research/methods this op family came from.

• The canonical algorithm (author, year) and its uses are named in the family usage guide above.

Runnable examples (verified samples that actually call this op)

• poc_tacsim_marker_shear — py -3.11 examples/poc_tacsim_marker_shear.py

Ops the type connects to (they accept matrix as input)

world_camera · lidar_scan · relative_motion · foe_from_motion · flow_from_depth_motion · ttc_truth · world_materials · mesh_signed_volume

Same category (tacslip)

mindlin_partial_slip · hertz_surface_ur · hertzian_tangential_inner · cerruti_kernel · cerruti_surface_displacement · membrane_shear_field · membrane_markers · displace_markers

*Provenance: tacslip.py — DRIVE operator registry. This per-op note is generated by tools/opdocs.py md (do not hand-edit).*

© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.