Zobrazeno 1 - 10
of 367
pro vyhledávání: '"Myoung-Gyu Lee"'
Publikováno v:
Chinese Journal of Mechanical Engineering, Vol 37, Iss 1, Pp 1-28 (2024)
Abstract Isothermal forging stands as an effective technology for the production of large-scale titanium alloy multi-rib components. However, challenges have persisted, including die underfilling and strain concentration due to the complex material f
Externí odkaz:
https://doaj.org/article/2f0fbd40a3ba40b2a5f63d5c599b74b3
Publikováno v:
Philosophical Magazine Letters, Vol 104, Iss 1 (2024)
ABSTRACTIn this study, anisotropic non-proportional hardening behaviour of the sheet metals with different crystalline structures is investigated. The investigated materials particularly exhibit the Bauschinger effect and complex transient hardening
Externí odkaz:
https://doaj.org/article/537a9719c90246d9aa77042e41b8a977
Autor:
Seo Yeon Jo, Gyu-Jang Sim, Eun Jeong Park, Jinheung Park, Jung Yun Won, Hansol Kim, Myoung-Gyu Lee
Publikováno v:
Heliyon, Vol 10, Iss 12, Pp e33242- (2024)
With the increasing demand for highly efficient lighting in the automotive industry, flip-chip light-emitting diodes (LEDs) have become widely used for both interior and exterior lighting. Solder, serving as a crucial interconnecting material, often
Externí odkaz:
https://doaj.org/article/7b730c5bb7744c49bfb61e38ab56301b
Publikováno v:
Materials, Vol 17, Iss 20, p 5031 (2024)
As vehicle body structures become stronger and part designs more complex for lightweight, controlling frictional properties in automotive press forming has gained critical importance. Friction, a key factor in formability, is influenced by variables
Externí odkaz:
https://doaj.org/article/baabdb52d9cb47a19018252e6accffd0
Publikováno v:
Journal of Materials Research and Technology, Vol 27, Iss , Pp 5041-5058 (2023)
The heterogeneous creep and fracture behavior of nickel-based single crystal (NBSC) superalloys with inclined and diffusive holes are investigated. The analyses are made by creep experiments and crystal plasticity (CP) simulation with a modified cree
Externí odkaz:
https://doaj.org/article/df77160801b948559ee8575a5fd3532f
Autor:
Chunmei Liu, Ali Abd El-Aty, Myoung-Gyu Lee, Yong Hou, Yong Xu, Shenghan Hu, Cheng Cheng, Jie Tao, Xunzhong Guo
Publikováno v:
Journal of Materials Research and Technology, Vol 26, Iss , Pp 109-120 (2023)
This study presents a one-surface plasticity constitutive model combined with phenomenological and micromechanical damage models to be applied to the large plastic deformation during tube hydroforming. These factors lead to simulating the Bauschinger
Externí odkaz:
https://doaj.org/article/1150364fa0e447539c7de39add32367c
Autor:
Ali Abd El-Aty, Xunzhong Guo, Myoung-Gyu Lee, Jie Tao, Yong Hou, Shenghan Hu, Tao Li, Cong Wu, Qiucheng Yang
Publikováno v:
International Journal of Lightweight Materials and Manufacture, Vol 6, Iss 2, Pp 165-188 (2023)
Free bending forming (FBF) is a flexible forming technology that gained significant attention recently because of its broad applications in critical industries such as the automotive, aerospace, and nuclear industries. Thus, this paper aims to presen
Externí odkaz:
https://doaj.org/article/a0529c8bf24b4a699a0a100cc482b41e
Autor:
Kali Prasad, Aishwary Gupta, Hariharan Krishnaswamy, Uday Chakkingal, Dilip K. Banerjee, Myoung-Gyu Lee
Publikováno v:
Friction, Vol 11, Iss 5, Pp 820-835 (2023)
Abstract Servo press forming machines are advanced forming systems that are capable of imparting interrupted punch motion, resulting in enhanced room temperature formability. The exact mechanism of the formability improvement is not yet established.
Externí odkaz:
https://doaj.org/article/ccb0852d69aa4a2bb20707bdc8f555b7
Publikováno v:
IEEE Access, Vol 10, Pp 100675-100681 (2022)
Tungsten has been commonly used for fine interconnects due to its good gap-filling characteristics in 3D molds, such as trench patterns. However, tungsten shows high deposition stress. This causes mold distortion because tungsten has low ad-atom mobi
Externí odkaz:
https://doaj.org/article/6520f853cd46442eab2ca975679cee4d
Publikováno v:
Materials & Design, Vol 223, Iss , Pp 111187- (2022)
Constitutive modeling of sheet metals under plane strain state is important but challenging. Recent studies report that the yield strength and plastic strain rate of sheet metals in the plane strain mode exhibit strong anisotropy. To address the plan
Externí odkaz:
https://doaj.org/article/36f3882c3d8a43a2a7937ee309c04fc7