Results 11 to 20 of about 548,206 (222)
Fracture simulation of welded RHS X-joints using GTN damage model
Advances in Structural Engineering, 2022 A welded rectangular hollow section (RHS) X-joint exposed to tension loading has three typical fracture-related failure modes: Punching shear failure (PSF), Brace failure (BF), and Chord side wall failure (CSWF). Prediction of these failure modes by finite element (FE) simulations requires modelling of the material damage.
Rui Yan +4 more
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Sequential Bayesian Inference of the GTN damage model using multimodal experimental data
Acta Materialia52 pages, 17 figures, Submitted to ...
Mohammad Ali Seyed Mahmoud +3 more
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Forming limit diagram prediction of 6061 aluminum by GTN damage model [PDF]
Mechanics & Industry, 2018 Forming limit diagram (FLD) is one of the formability criteria which is a plot of major strain versus minor strain. In the present study, Gurson-Tvergaard-Needleman (GTN) model is used for FLD prediction of aluminum alloy 6061. Whereas correct selection of GTN parameters’ is effective in the accuracy of this model, anti-inference method and numerical ...
R. Safdarian
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The International Journal of Advanced Manufacturing Technology, 2021 The research mainly focused on the forming limit curves (FLC) of the 6061 Al alloy subjected to heat treatments with various (1 mm, 1.6 mm, 2 mm, and 2.5 mm) sheet metal thicknesses. Five peculiar heat treatments, including natural aging temper (T4) and highest-strength (T6) temper, were devised to study the influence of heat treatments on the ...
Rasid Ahmed Yildiz, Safak Yilmaz
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Fracture and Structural Integrity, 2020 Initiation and propagation of ductile fractures are a major consideration during the design of high-pressure pipelines. Consequences of a pipeline failure can be catastrophic thus structural integrity must be ensured over several decades. Traditional lab-
Benoît Paermentier +2 more
doaj +4 more sources
Implementation of the GTN Damage Model to Simulate the Small Punch Test on Pre-Cracked Specimens
Procedia Engineering, 2011 Nowadays, pre-cracked Small Punch Tests (P-SPT) are used in those cases where there is not enough material for conducting conventional tests. In this paper, P-SPT has been used to determine the fracture properties of the 15.5PH steel, using the micromechanical model, developed by Gurson-Tvergaard-Needleman (GTN).
Alegre Calderón, Jesús Manuel +2 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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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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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
doaj +1 more source