Results 11 to 20 of about 2,848 (173)
Study on Numerical and Experimental Failure Criterion for Formability Prediction of Hastelloy-X Using GTN Model [PDF]
한국정밀공학회지, 2022 Hastelloy-X material is widely used in aircraft engines, furnaces, and chemical process components due to its excellent oxidation resistance and high-temperature strength.
Sohyeon An +4 more
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Cohesive GTN model for ductile fracture simulation
Engineering Fracture Mechanics, 2021 The present work addresses the micromechanical modeling and the simulation of crack initiation and propagation in ductile materials failing by void nucleation, growth and coalescence. A cohesive–volumetric approach is used and the overall material behavior is characterized both by a hardening bulk constitutive law and a softening surface traction ...
Noé Brice Nkoumbou Kaptchouang +3 more
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Fracture performance assessment of Q690 steel and its butt welded joint based on GTN damage model
Zhongguo Jianchuan Yanjiu, 2022 ObjectivesQ690 high strength steel (HSS) is usually employed in the fabrication of special parts for semi-submersible lifting and dismantling platforms.
Jiangchao WANG, Zichao ZHUO
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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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A consistent use of the Gurson-Tvergaard-Needleman damage model for the R-curve calculation
Fracture and Structural Integrity, 2013 The scope of the present work is to point out a consistent simulation procedure for the quasi-static fracture processes, starting from the micro-structural characteristics of the material.
Gabriele Cricrì
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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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Journal of Materials Research and Technology, 2022 In this paper, the fracture toughness tests of compact tensile (CT) specimens with varying in-plane constraints were carried out. J-R curves of G20Mn5QT cast steel were firstly measured by normalization method.
Jie Xu +4 more
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Annexin A1 exerts analgesic effect in a mouse model of medication overuse headache
iScience, 2023 Summary: Medication overuse headache (MOH) is a serious global condition. The interaction between headache attacks and medication overuse complicates the understanding of its pathophysiology.
Zihua Gong +11 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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Formability prediction using bifurcation criteria and GTN damage model [PDF]
International Journal of Mechanical Sciences, 2021 In this paper, four plastic instability criteria, which are based on the bifurcation theory, are coupled with the GTN damage model for the prediction of diffuse and localized necking. General bifurcation (GB) criterion and limit-point bifurcation (LPB) criterion are used to predict diffuse necking, while loss of ellipticity (LOE) criterion and loss of ...
Nasir, Muhammad Waqar +2 more
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