A review of characterization and modelling approaches for sheet metal forming of lightweight metallic materials

Y Hou, D Myung, JK Park, J Min, HR Lee, AA El-Aty… - Materials, 2023 - mdpi.com
Lightweight sheet metals are attractive for aerospace and automotive applications due to
their exceptional properties, such as low density and high strength. Sheet metal forming …

Comparison of anisotropic yield functions and calibrations for accurate thickness prediction in hole expansion test

HS Park, F Barlat, SY Lee - Journal of Materials Processing Technology, 2023 - Elsevier
The hole expansion test is an appropriate evaluation method for assessing the formability of
automotive parts, where fracture prediction using simulated localized thickness is crucial …

A crystal plasticity finite element analysis on the effect of prestrain on springback

M Joo, MS Wi, SY Yoon, SY Lee, F Barlat… - International Journal of …, 2023 - Elsevier
An incremental elasto-visco-plastic self-consistent polycrystal model was directly interfaced
with a finite element (FE) code and applied to simulations of a mild steel sample subjected to …

Evaluation of loading-path-dependent constitutive models for springback prediction in martensitic steel forming

SY Lee, SY Yoon, JH Kim, F Barlat, KS Oh - International Journal of …, 2023 - Elsevier
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 …

Crystal plasticity-based analysis and modelling of grain size and strain path dependent micro-scaled deformation mechanisms of ultra-thin sheet metals

Z Xu, R Zhang, L Peng, MW Fu - International Journal of Plasticity, 2023 - Elsevier
Multi-stage microforming is increasingly used in manufacturing of the miniaturized parts with
complex structures and geometries. Optimization design of this type of manufacturing …

[HTML][HTML] An investigation into the characterization of the hardening response of sheet metals using tensile and shear tests with surface strain measurement

A Abedini, A Narayanan, C Butcher - Forces in Mechanics, 2022 - Elsevier
The adoption of full-field digital image correlation (DIC) strain measurement in recent years
has fundamentally transformed conventional analysis procedures for the mechanical …

Finite element implementation of hydrostatic pressure-sensitive plasticity and its application to distortional hardening model and sheet metal forming simulations

SY Yoon, F Barlat, SY Lee, JH Kim, MS Wi… - Journal of Materials …, 2022 - Elsevier
In this work, the hydrostatic pressure-dependency of the distortional plasticity model HAH 20
was implemented using a finite element (FE) code to account for the strength-differential …

Nonlinear biaxial tensile stress path experiment without intermediate elastic unloading for validation of material model

Y Takada, T Kuwabara - International Journal of Solids and Structures, 2022 - Elsevier
A linear stress path (LSP) experiment was performed using uniaxial and biaxial tensile tests
with a cold-rolled mild steel sheet (SPCD; nominal thickness: 0.8 mm) as the test material. In …

Return mapping with a line search method for integrating stress of the distortional hardening law with differential softening

J Lee, HJ Bong, MG Lee - Computers & Structures, 2021 - Elsevier
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 …

Calibration of a strain path change model for a dual phase steel

D Hérault, S Thuillier, SY Lee, PY Manach… - International Journal of …, 2021 - Elsevier
Dual phase steels are largely used to form automotive structural parts by deep drawing
involving complex loading paths, which influence the material mechanical behavior and …