Results 1 to 10 of about 13,842,156 (196)

Prediction of Fracture Behavior of 6061 Aluminum Alloy Based on GTN Model. [PDF]

open access: yesMaterials (Basel), 2022
To determine the Gurson-Tvergaard-Needleman (GTN)damage model parameters of 6061 aluminum alloy after secondary heat treatment, the uniaxial tensile test was carried out on the aluminum alloy circular arc specimen, and the mechanical properties ...
Ding F, Hong T, Xu Y, Jia X.
europepmc   +5 more sources

Interaction of sublingual glyceryl tri-nitrate administration on single muscle contraction-induced hyperemia: potential insight into the role of the skeletal muscle pump [PDF]

open access: yesFrontiers in Physiology
PurposeMuch debate exists about the relative contribution of the skeletal muscle pump and rapid vasodilation to exercise hyperemia. This investigation examined the contribution of the skeletal muscle pump to the immediate increase in muscle blood flow ...
Timothy R. Rotarius   +2 more
doaj   +2 more sources

Evaluation of impact ductile fracture behaviour of low carbon austenitic stainless steel SUS304L using damage mechanics model [PDF]

open access: yesEPJ Web of Conferences, 2021
To clarify the applicability of the Gurson-Tvergaard-Needleman (GTN) model for impact ductile fracture behaviour, SHB test was reproduced by finite element analysis (FEA).
Takazawa Hidekazu   +4 more
doaj   +1 more source

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

open access: yesJournal 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
doaj   +1 more source

Study on Numerical and Experimental Failure Criterion for Formability Prediction of Hastelloy-X Using GTN Model [PDF]

open access: yes한국정밀공학회지, 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
doaj   +1 more source

Fracture performance assessment of Q690 steel and its butt welded joint based on GTN damage model

open access: yesZhongguo 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
doaj   +1 more source

Anisotropic ductile fracture: experiments, modeling, and numerical simulations

open access: yesJournal 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
doaj   +1 more source

A consistent use of the Gurson-Tvergaard-Needleman damage model for the R-curve calculation

open access: yesFracture 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
doaj   +3 more sources

Coupled identification of the hardening behavior laws and Gurson–Tvergaard–Needleman damage parameters - Validation on tear test of 12NiCr6 CT specimen

open access: yesFracture 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
doaj   +3 more sources

J-R curve determination of G20Mn5QT cast steel using CT specimen with varying in-plane and out-of-plane constraints based on normalization method and GTN model

open access: yesJournal 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
doaj   +1 more source

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