Evaluation of loading-path-dependent constitutive models for springback prediction in martensitic steel forming
In this study, the performance of conventional and advanced constitutive models to the
prediction of springback for ultra-high strength steel was assessed. The elasto-plastic …
prediction of springback for ultra-high strength steel was assessed. The elasto-plastic …
A new concept for continuum distortional plasticity
This paper presents hexah, a framework based on the homogeneous anisotropic hardening
(HAH) model. It aims at recreating the effects of arbitrary strain path changes over the plastic …
(HAH) model. It aims at recreating the effects of arbitrary strain path changes over the plastic …
Return mapping with a line search method for integrating stress of the distortional hardening law with differential softening
A stress-update algorithm for the recently proposed distortional anisotropic hardening law is
developed based on the Newton–Raphson (N–R) algorithm and line search method. The …
developed based on the Newton–Raphson (N–R) algorithm and line search method. The …
Investigation of elastic modulus degradation and recovery with time and baking process for deformed automotive steel sheets
This study investigated the elastic recovery phenomenon with elapsed time and heat
treatment after the plastic deformation of automotive steel sheets. A conventional uniaxial …
treatment after the plastic deformation of automotive steel sheets. A conventional uniaxial …
Bauschinger effect calibration by the different types of loading/reverse loading tests for springback prediction in sheet metal forming
This study deals with the calibration of Bauschinger effect on DP980 and TRIP1180 sheet
metals with three cyclic material tests: tension/compression, shear/reverse shear, and …
metals with three cyclic material tests: tension/compression, shear/reverse shear, and …
Application of distortional plasticity framework to EDDQ and TRIP steel sheets: Prediction of latent hardening and its influence on springback
In this study, the recently developed distortional plasticity model (HAH 20) was applied to
EDDQ and TRIP steel sheets to account for hardening fluctuations induced by loading path …
EDDQ and TRIP steel sheets to account for hardening fluctuations induced by loading path …
Shear Deformation Behavior of Heterostructured Materials: Experimental and Numerical Analyses
In this study, the heterogeneous strengthening behavior in shear deformation was
experimentally characterized and numerically modeled for the first time. Uniaxial tensile and …
experimentally characterized and numerically modeled for the first time. Uniaxial tensile and …
Appropriateness of hydrostatic pressure-based modeling for strength differential effect in advanced high strength steel
Although numerous models have been proposed to describe the strength differential (SD)
effect, their appropriateness and efficiency in the case of advanced high strength steel …
effect, their appropriateness and efficiency in the case of advanced high strength steel …
Direct application of elasto-visco-plastic self-consistent crystal plasticity model to U-draw bending and springback of dual-phase high strength steel
The incremental elasto-visco-plastic self-consistent polycrystal model (Δ EVPSC) was
utilized to describe the constitutive behavior of dual-phase 980 (DP980) steel. A simple …
utilized to describe the constitutive behavior of dual-phase 980 (DP980) steel. A simple …
Numerical fracture prediction of martensitic steel by uncoupled and coupled type fracture models
In this study, fracture of martensitic steel in hole expansion and stretch bending was
predicted by finite element analysis with shell elements. Various mechanical experiments …
predicted by finite element analysis with shell elements. Various mechanical experiments …