Results 51 to 60 of about 180 (136)

Comparative Numerical Analysis of Sheet Formed into a V-Shaped Die Using Conventional and Electromagnetic Forming Processes

Advances in Mechanical Engineering, 2014
A comparative and numerical study on the formability of a sheet formed into a V-shaped die using a conventional stamping operation and an electromagnetic forming (EMF) process was performed. To evaluate the damage evolution and failure prediction using a
Jeong Kim, Hak-Gon Noh, Woo-Jin Song, Beom-Soo Kang   +3 more
doaj   +1 more source

Numerical Study on Ductile Failure Behaviours of Steel Structures under Quasi-Static Punch Loading

Journal of Marine Science and Engineering, 2023
A reliable finite element procedure to simulate shear-dominated ductile fractures in large-scale, thin-walled steel structures is still evolving primarily due to the challenges in determining the failure criterion of metal materials under complex stress ...
Wei Cai, Zhihui Zhou, Xudong Qian, Dongfeng Cao, Shuxin Li, Ling Zhu, Haixiao Hu   +6 more
doaj   +1 more source

GTN Model-Based Material Parameters of AZ31 Magnesium Sheet at Various Temperatures by Means of SEM In-Situ Testing

Crystals, 2020
Magnesium alloys are primarily associated with complex forming mechanisms, which yield ductility at high temperatures. In sheet metal forming, high triaxiality stress states that favor the ductile damage mechanisms of void formation and growth are known ...
Thorsten Henseler, Shmuel Osovski, Madlen Ullmann, Rudolf Kawalla, Ulrich Prahl   +4 more
doaj   +1 more source

Numerical Study about the Influence of Superimposed Hydrostatic Pressure on Shear Damage Mechanism in Sheet Metals

Metals, 2021
It is generally accepted that the superimposed hydrostatic pressure increases fracture strain in sheet metal and mode of fracture changes with applying pressure.
Mohammadmehdi Shahzamanian, Chris Thomsen, Amir Partovi, Zhutian Xu, Peidong Wu   +4 more
doaj   +1 more source

Study of the slant fracture in solid and hollow cylinders: Experimental analysis and numerical prediction

Fracture and Structural Integrity, 2022
This paper is devoted to the numerical and experimental study of ductile fracture in bulk metal forming of the 2017A-T4 aluminum alloy. From an experimental standpoint, the ductile fracture of the 2017A-T4 aluminum alloy is investigated under ...
Nassima Ben Chabane, Nassim Aguechari, Mohand Ould Ouali   +2 more
doaj  

Evaluating the Applicability of GTN Damage Model in Forward Tube Spinning of Aluminum Alloy

Metals, 2016
Tube spinning is an effective plastic-forming technology for forming light-weight, high-precision and high-reliability components in high-tech fields, such as aviation and aerospace.
Xianxian Wang, Mei Zhan, Jing Guo, Bin Zhao   +3 more
doaj   +1 more source

Numerical simulation of void elimination in the billet during hot shape rolling processes based on the Gurson–Tvergaard–Needleman model

AIP Advances
The presence of voids can compromise the strength and continuity of downstream products. The Gurson–Tvergaard–Needleman model was utilized to obtain the relevant parameters.
Shuiwen Zhu, Yu Fu, Shunxin Wu, Shuangxi Guo   +3 more
doaj   +1 more source

Characterizing properties of pipeline girth welds: A novel testing protocol and validation

Journal of Pipeline Science and Engineering
Accurate, region-specific mechanical properties of pipeline girth welded joints are fundamental for structural safety design and integrity assessment.
Tieyao Zhang, Yi Shuai, Ye Tian, Zhiyang Lv, Mengchao Hu, Jian Shuai, Laibin Zhang   +6 more
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Thermomechanical Analysis of PBF-LB/M AlSi7Mg0.6 with Respect to Rate-Dependent Material Behaviour and Damage Effects

Applied Mechanics
This paper describes the self-heating effects resulting from mechanical deformation in the additively manufactured aluminium alloy AlSi7Mg0.6. The material’s self-heating effect results from irreversible changes in the material’s microstructure that are ...
Lukas Richter, Irina Smolina, Andrzej Pawlak, Daniela Schob, Robert Roszak, Philipp Maasch, Matthias Ziegenhorn   +6 more
doaj   +1 more source

Impact Deposition Behavior of Al/B₄C Cold-Sprayed Composite Coatings: Understanding the Role of Porosity on Particle Retention. [PDF]

Materials (Basel), 2023
Manafi Farid H, McDonald A, Hogan JD.
europepmc   +1 more source