Plastic anisotropy evolution of SS316L and modeling for novel cruciform specimen

EM Mamros, SM Mayer, DK Banerjee… - International Journal of …, 2022 - Elsevier
In this paper, the evolution of the plastic anisotropy of stainless steel 316L samples is
investigated under proportional loading paths using a customized cruciform specimen. The …

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 …

Natural aging behaviors of Al-Cu-Li alloy: PLC effect, properties and microstructure evolution

CH Wu, H Li, TJ Bian, C Lei, LW Zhang - Materials Characterization, 2022 - Elsevier
To facilitate the processing and manufacturing of heat-treatable aluminum alloy
components, the initial temper of the billet material is usually adjusted to the as-quenched …

Hole expansion characteristics of W-tempered 7075 aluminum alloy sheet in comparison with peak aged T6 tempered alloy sheet

Y Choi, J Lee, HJ Bong, MG Lee - Metals and Materials International, 2023 - Springer
The hole expansion formability of W-tempered aluminum 7075 sheet, which is prepared by
solution heat treatment and rapid cooling, is investigated comparatively with the peak aged …

Local formability of medium-Mn steel

F Shen, H Wang, Z Liu, W Liu, M Könemann… - Journal of Materials …, 2022 - Elsevier
Global formability and local formability are critical in different metal forming processes. Edge
cracking, controlled by the local formability, is a dominant factor limiting the application of …

Micromechanics-based modeling of plastic and ductile fracture of aluminum alloy 2024-O

J Lee, HJ Bong, H Park, D Kim - Engineering Fracture Mechanics, 2022 - Elsevier
In this study, the plastic deformation behavior at a large strain range, as well as the ductile
damage and fracture of aluminum alloy 2024-O materials, were investigated under quasi …

Flange wrinkling in deep-drawing: Experiments, simulations and a reduced-order model

K Chen, AJ Carter, YP Korkolis - Journal of Manufacturing and Materials …, 2022 - mdpi.com
Flange wrinkling is often seen in deep-drawing process when the applied blankholding
force is too small. This paper investigates the plastic wrinkling of flange under a constant …

Modelling time-dependent relaxation behaviour using physically based constitutive framework

V Balaji, H Krishnaswamy, S Natarajan… - International Journal of …, 2024 - Elsevier
The application of interrupted die motion during the deformation process in a servo press
cycle is known to enhance the forming limit of metallic materials. This observation is …

Effect of plastic anisotropy on notch deformation behavior of 7075 high-strength aluminum alloy sheet subjected to axial tension

T Xu, F Li, G Zhang, X Fan - Theoretical and Applied Fracture Mechanics, 2023 - Elsevier
The notch is an inevitable geometric characteristic in thin-walled structural components.
However, the anisotropy in the notch deformation behavior of metal sheets has not been …

Observation of Portevin-le Chatelier effect in aluminum alloy 7075-w under a heterogeneous stress field

Y Choi, J Ha, MG Lee, YP Korkolis - Scripta Materialia, 2021 - Elsevier
Abstract The kinetics of Portevin-Le Chatelier (PLC) bands in the hole-expansion of a
circular hole using a flat-headed punch are investigated for a solid-solution heat-treated …