Numerical prediction of sheared edge profiles in sheet metal trimming using ductile fracture modeling

S Basak, C Kim, W Jeong, YI Jung, MG Lee - International Journal of …, 2022 - Elsevier
In this study, experimental and numerical analyses are conducted to investigate sheared
edges after trimming three automotive sheet metals including TRIP steel, hot-stamped (HS) …

Failure characterization and meso-scale damage modeling of spot welds in hot-stamped automotive steels using a hardness-mapping approach

A Mohamadizadeh, E Biro, M Worswick - Engineering Fracture Mechanics, 2022 - Elsevier
A meso-scale modeling approach is used to relate the local microstructural strength and
fracture resistance to the macro-scale failure response of spot welds in hot-stamped ultra …

Analyses of shearing mechanism during shear-cutting of 980 MPa dual-phase steel sheets using ductile fracture modeling and simulation

S Basak, C Kim, YI Jung, HK Jin, MG Lee - International Journal of …, 2022 - Springer
In this work, the effects of various process input parameters in the sheared edge
characteristics are studied during shear-cutting of DP980 sheet material. A virtual …

Fracture response in hot-stamped tailor-welded blanks of Ductibor® 500-AS and Usibor® 1500-AS: experiments and modelling

P Samadian, C O'Keeffe, C Butcher… - Engineering Fracture …, 2021 - Elsevier
Hot-stamped tailor-welded blanks (TWBs) comprised of steel sheets with different chemical
compositions are of interest within the automotive sector to enhance the crash performance …

Shear band formation at the fusion boundary and failure behaviour of resistance spot welds in ultra-high-strength hot-stamped steel

A Mohamadizadeh, E Biro… - Science and Technology …, 2020 - journals.sagepub.com
The failure of resistance spot welds in ultra-high-strength press-hardened steels often
occurs due to martensite tempering in the heat-affected zone. In the present work, however …

Investigation of resistance spot weld failure in tailor hot stamped assemblies

C Tolton, C O'Keeffe, A Mohammadizadeh… - International Journal of …, 2023 - Elsevier
A novel experimental method, dubbed the “Mode I Caiman test”, is introduced to
characterize spot weld failure and propagation within spot weld groups. The test …

Microstructure-Based Modelling of Flow and Fracture Behavior of Tailored Microstructures of Ductibor® 1000-AS Steel

P Samadian, A Abedini, C Butcher, MJ Worswick - Metals, 2022 - mdpi.com
Emerging grades of press-hardening steels such as Ductibor® 1000-AS are now
commercially available for use within tailor-welded blanks (TWBs) to enhance ductility and …

An experimental methodology to characterize load-based fracture models of third generation advanced high strength steel resistance spot welds

M Shojaee, C Tolton, A Midawi, T Zhang… - … International Journal of …, 2024 - Springer
Failure of resistance spot welds in computer-aided engineering models is based upon
criteria that incorporate test data obtained in various loading conditions including different …

Novel double-half spot weld testing technique for damage progress and failure analysis using digital image correlation techniques

A Mohamadizadeh, E Biro, M Worswick - Experimental Mechanics, 2021 - Springer
Background In-situ spot weld failure analysis under complex loading conditions is
significantly restricted by the enclosed space around the weld nugget. Failure can be only …

[HTML][HTML] Evaluation of Crashworthiness Using High-Speed Imaging, 3D Digital Image Correlation, and Finite Element Analysis

S Jonsson, J Kajberg - Metals, 2023 - mdpi.com
To promote the use of newhigh-strengthmaterials in the automotive industry, the evaluation
of crashworthiness is essential, both in terms of finite element (FE) analysis aswell as …