Parameter Identification and Modeling of Hardening to Preserve Identical Predictions under Monotonic Loading

Advanced hardening models accurately describe the transient plastic behavior (reyielding, stagnation, resumption...) after various strain-path changes (reverse, orthogonal...). However, a common drawback of these is that they usually predict monotonic loading with lower accuracy than regular isotropic models. Consequently, finite element predictions using may sometimes lose in accuracy, spite their tremendous theoretical superiority. This has been eliminated literature for Chaboche isotropic-kinematic model. In this work, generic approach proposed advanced Arbitrary could be successfully compensated to preserve rigorously identical under loading. A physically-based model involving 4 th order tensor and two 2 nd tensors was used demonstration. The parameter identification procedure greatly simplified by decoupling parameters from other parameters.