Results 21 to 30 of about 1,171 (167)
A consistent use of the Gurson-Tvergaard-Needleman damage model for the R-curve calculation [PDF]
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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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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Journal of Materials Research and Technology, 2021 The investigation on the formability of 7075-T6 aluminum alloy at elevated temperatures is significant due to its low plasticity at room temperature. Meso-Damage mechanics suggests that the growth and accumulation of micro-voids is an important factor ...
Xiangji Li, Meng Xu, Zhiqiang Zhang
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Metals, 2021 It is generally accepted that the superimposed hydrostatic pressure increases fracture strain in sheet metal and mode of fracture changes with applying pressure.
Mohammadmehdi Shahzamanian +4 more
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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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Application of Gurson-Tvergaard-Needleman constitutive model to the tensile behavior of reinforcing bars with corrosion pits. [PDF]
PLoS ONE, 2013 Based on meso-damage mechanics and finite element analysis, the aim of this paper is to describe the feasibility of the Gurson-Tvergaard-Needleman (GTN) constitutive model in describing the tensile behavior of corroded reinforcing bars.
Yidong Xu, Chunxiang Qian
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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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GTN Damage Modelling of the AA6063 Using Image Processing
Brilliant Engineering, 2021 In this paper, an innovative way of calculating the Gurson–Tvergaard–Needleman parameter has been developed for AA 6063. AA 6063 is an aluminum alloy comprising the alloying ingredients magnesium and silicon. The Aluminum Association maintains the standard that governs its composition.
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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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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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