Results 31 to 40 of about 164 (119)

Grain modeling and finite element simulation of damage evolution for AA5182-O aluminum alloy sheet

Journal of Materials Research and Technology, 2020
The evolution of crystal damage in rolled AA5182-O aluminum alloy sheet was studied by experiment and finite element simulation in this paper. Grain size characteristic on rolling anisotropy was determined by electron backscatter diffraction (EBSD) test ...
Gui Li, Saisai Cui
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Effect of Initial Porosity on Material Response Under Multi-Axial Stress State for S235JR Steel

Archives of Civil Engineering, 2012
The effect of the initial porosity on the material response under multi-axial stress state for S235JR steel using the Gurson-Tvergaard-Needleman (GTN) material model was examined.
Kossakowski P.G.
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Damage evolution of 7075 aluminum alloy basing the Gurson Tvergaard Needleman model under high temperature conditions

Journal of Materials Research and Technology, 2022
Based on the Gurson-Tvergaard-Needleman (GTN) damage model, the damage evolution and ductile fracture of 7075 aluminum alloy sheets during the tensile process were predicted. First, the true stress–strain curve and micro morphology of 7075 aluminum alloy
Hongchao Ji, Zheng Ma, Xiaomin Huang, Wenchao Xiao, Baoyu Wang   +4 more
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Quantitative Anisotropic Damage Mechanism in a Forged Aluminum Alloy Studied by Synchrotron Tomography and Finite Element Simulations

Advances in Materials Science and Engineering, 2019
A highly anisotropic toughness behavior has been revealed on a forged AA6061 aluminum alloy by toughness tests with CT specimens. The toughness values with specimens loaded on the longitudinal direction are larger than that loaded on the transverse ...
Yang Shen, Thilo F. Morgeneyer, Jérôme Garnier, Lucien Allais, Lukas Helfen, Jérôme Crépin   +5 more
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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
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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
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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
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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
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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
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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
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