Performance review of various uncoupled fracture criteria for TRIP steel sheet

VK Barnwal, SY Lee, J Choi, JH Kim, F Barlat - International Journal of …, 2021 - Elsevier
The exact numerical description of ductile fracture for advanced high strength steel (AHSS)
sheets, particularly for different deformation modes, is an ongoing issue for the sheet metal …

Numerical fracture prediction of martensitic steel by uncoupled and coupled type fracture models

SY Lee, JH Kim, F Barlat, HS Kim - Engineering Fracture Mechanics, 2023 - Elsevier
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 …

[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 …

Prediction of hole expansion ratio for advanced high-strength steel with image feature analysis of sheared edge

K Jeong, Y Jeong, J Lee, C Won, J Yoon - Materials, 2023 - mdpi.com
The punching process of AHSS induces edge cracks in successive process, limiting the
application of AHSS for vehicle bodies. Controlling and predicting edge quality is …

Experimental correlation between bending crack evolution and load-drop criterion in tight-radius three-point bending test with GPa-grade steels

K Jeong, Y Jeong, J Lee, G Chung, G Kim… - International Journal of …, 2024 - Elsevier
Determining the bending-fracture limit, also referred to as local formability, is crucial for
sheet metal forming. However, this is limited by existing methods such as the VDA-238-100 …

Initiation and growth of edge cracks after shear cutting of dual-phase steel

MM Khalilabad, S Perdahcıoğlu, E Atzema… - … International Journal of …, 2023 - Springer
Dual-phase steels suffer from low edge ductility, which limits their formability. In this study,
an in-plane bending test is used to investigate the initiation and evolution of edge cracks …

[PDF][PDF] DP780 双相钢在不同应变状态下的断裂特性及机理

余立, 刘静, 葛锐, 魏星, 彭周, 陈明, 刘冬 - 锻压技术, 2022 - qikan.cmes.org
先进高强钢(AHSS) 是重要的汽车轻量化材料, 其在不同应变状态下会表现出不同的断裂特性.
以DP780 双相钢为研究对象, 研究了其在典型应变状态下的断裂失效行为 …

Fracture prediction of NM450TP wear-resistant steel plates during air bending using a mesoscopic heterogeneous model

Y Zhou, G Li, T Wen, L Zhang, Y Zheng, F Yang… - Theoretical and Applied …, 2023 - Elsevier
A mesoscopic finite element model considering material heterogeneity based on
microstructure features was constructed to predict the fracture of NM450TP plates during air …

[PDF][PDF] Fracture characteristics and mechanism on DP780 dual-phase steel under different strain states

余立, 刘静, 葛锐, 魏星, 彭周, 陈明… - Forging & Stamping …, 2022 - qikan.cmes.org
Advanced high strength steel (AHSS) is an important material for lightweight in automobile,
which performs different fracture characteristics under different strain states. Therefore, for …