Results 21 to 30 of about 2,848 (173)
Experimental Investigation of GTN model parameters of 6061 Al alloy
European Journal of Mechanics - A/Solids, 2020 Abstract This research experimentally determines the Gurson-Tvergaard-Needleman (GTN) model damage mechanics parameters for 6061 Al alloys. Five different heat treatment conditions including T4 (natural aging) and T6 (peak strength) conditions of 6061 Al alloy were investigated.
Yildiz, R. A., Yilmaz, S.
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A GTN-like Model for Plastic Porous Materials
Engineering, Technology & Applied Science Research, 2014 An extended version of the well-known Gurson-Tvergaard-Needleman (GTN) isotropic hardening model is presented in this paper. The yield function of the proposed constitutive model possesses the distinctiveness to explicitly depend upon the third stress invariant. The presented constitutive model is used to analyze the necking of a round tensile bar.
Siad, L., Gangloff, S. C.
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Ductile damage modelling with locking‐free regularised GTN model
International Journal for Numerical Methods in Engineering, 2018 SummaryThe major goal of this work is to develop a robust modelling strategy for the simulation of ductile damage development including crack initiation and subsequent propagation. For that purpose, a Gurson‐type model is used. This model class, as many other damage models, leads to significant material softening and must be used within a large ...
Yi Zhang, Eric Lorentz, Jacques Besson
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Frontiers in Pharmacology, 2018 Glyceryl trinitrate (GTN) has found widespread use for the treatment of angina pectoris, a pathological condition manifested by chest pain resulting from insufficient blood supply to the heart.
Elizabeth Rose Axton +9 more
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Journal of Materials Research and Technology, 2023 In this study, the ductile damage responses of high-strength 7000 series aluminum alloy (AA), AA 7075-T6 sheet samples, subjected to the plane strain deformation mode were investigated using finite element (FE) simulations.
Jinwoo Lee +3 more
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Prostaglandin-E2 levels over the course of glyceryl trinitrate provoked migraine attacks
Neurobiology of Pain, 2023 Administration of glyceryl trinitrate (GTN), a donor of nitric oxide, can induce migraine-like attacks in subjects with migraine. Provocation with GTN typically follows a biphasic pattern; it induces immediate headache in subjects with migraine, as well ...
Aster V.E. Harder +7 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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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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MATEC Web of Conferences, 2015 Incremental sheet forming (ISF) is a relatively new flexible forming process with excellent adaptability to CNC milling machines due to the fact that it does not require any high capacity presses or dies of a specific shape and this makes the process ...
Gatea Shakir +3 more
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