Physical Regime Sensitivity

• DOI: 10.1007/s40870-023-00375-w
• Publication Date: 2023-05-01T20:01:37Z
• Authors: M. B. Prime; J. S. Merson; S.-R. Chen
• Keywords: 0103 physical sciences; 01 natural sciences

Abstract This work presents a novel sensitivity approach that quantifies to regimes of model’s state variables rather than constitutive model parameters. Physical Regime Sensitivity (PRS) determines which independent have the biggest influence on an experiment or application. PRS analysis is demonstrated strength used in simulation copper Taylor cylinder. In series simulations, was perturbed sequentially local plastic strain, strain rate, temperature and pressure, then prediction cylinder shape compared unperturbed calculations. Results show, for example, deformed length most sensitive at rate 1.0 × 10 4 /sec., but footprint radius about 4.0 /sec. Compared current histogram approaches, can be design interpret integrated experiments by identifying not just are accessed somewhere causality question actually affect measured data. should allow one focus experimental modeling efforts where they needed better experiments.