A Solver-Decoupled Framework for Cumulative Interfacial Motion Tracking in Discontinuous Contact Problems

Key Points

• To address the underestimation of cumulative motion in contact problems and improve tracking accuracy.
• Developed a Solver-Decoupled Framework (SDKF) for motion tracking.
• Implemented an approach to resolve algebraic cancellation and separate reset mechanisms.
• Analyzed the enhancement of contact clearance as a tunable parameter.
• Standard solver contact slip underestimated cumulative motion by over 50%.
• SDKF achieved a speed increase of 494–1006× in processing times for tracking motion.
• The endpoint metric conflated normal and tangential components across all loads.