Results 11 to 20 of about 1,171 (167)
Study on Fracture Behavior of Mini-CT Specimen Based on GTN Mesoscopic Damage Model
Yuanzineng kexue jishuTo ensure the safe operation of nuclear power plants, the status of the reaction pressure vessel needs to be monitored in real time. The fracture toughness of the domestic A508-Ⅲ steel, which is the main material, can be used as the primary indicator to ...
YANG Yue1, LI Yihan1, YANG Wanhuan2, LI Junwan1, ZHONG Weihua2, NING Guangsheng2, YANG Wen2
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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 +6 more
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DETERMINATION OF DAMAGE PARAMETERS OF SHEAR MODIFIED GTN MODEL BY RESPONSE SURFACE METHOD
Jixie qiangdu, 2019 The Nahshon-Hutchinson shear modified GTN damage model was used to simulate the mechanical and damage behavior of small punch test（ SPT）,where the study material is silicon steel.
SUN Quan, LU YeBo, CHEN JianJun
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Metals, 2022 Under warm forming, the damage parameters of extended GTN model are easily affected by temperature, and the failure of materials under warm forming is less studied by using this model. In this paper, based on the extended GTN model, the damage parameters
Xingfeng Liu +6 more
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Journal of Materials Research and Technology, 2023 The damage evolution of TA15 titanium alloy laser-welded joint during hot deformation was studied by tensile tests and the GTN model. Tensile tests of the welded joint at 900 °C with different strain rates were carried out, and the evolution of cracks ...
Di Wu +5 more
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High Temperature Materials and Processes, 2021 Understanding the damage evolution of alloys during a plastic deformation process is significant to the structural design of components and accident prevention. In order to visualize the damage evolution in the plastic deformation of Ti–3Al–2Mo–2Zr alloy,
Tong Ying, Zhao Jiang, Quan Guo-zheng
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Anisotropic ductile fracture: experiments, modeling, and numerical simulations
Journal of Materials Research and Technology, 2022 The continuous hot rolling process induces anisotropy in the plastic yield and flow and results in an anisotropic ductile fracture. In this study, experiments, including uniaxial in-plane tension tests and shear tests of butterfly specimens along ...
Hongfei Wu +3 more
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Fracture and Structural Integrity, 2019 This work is devoted to the application of the micromechanical Gurson-Tvergaard-Needleman (GTN) model to study the ductile tearing of 12NiCr6 steel. GTN model is widely used to describe the three stages of ductile tearing: nucleation, growth and the ...
Mohamed Hadj Miloud +2 more
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Metals, 2022 Clustering ball spinning (CBS) forming is a novel approach to manufacturing a complex curved surface. In order to explore the forming limit of magnesium alloy in the CBS forming process, the modified GTN model was incorporated into the FE simulation to ...
Zhiqing Hu, Lijia Da, Jia Xi, Xinchen Li
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