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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Ocean Engineering, 2020 Abstract Nonlinear numerical simulation has become an important tool for analysing dynamic responses and energy dissipation of structures during ship collision and grounding scenarios. However, determining a globally acknowledged failure criterion remains a challenging task.
Wang Z, Hu Z, Liu K, Chen G
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Parametric study of piercing force and surface quality in elastomer-assisted tube piercing [PDF]
Scientific ReportsPiercing metal tubes is essential for creating openings in multi-port industrial fittings. Conventional piercing techniques often struggle to provide satisfactory edge quality, leading to challenges such as needing pre-drilling, limitations to circular ...
Hamzeh Mamashli +2 more
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Insights into particle dispersion and damage mechanisms in functionally graded metal matrix composites with random microstructure-based finite element model [PDF]
Scientific ReportsThis study investigates the impact of $$\mathrm {Al_2O_3}$$ Al 2 O 3 particle volume fraction and distribution on the deformation and damage of particle-reinforced metal matrix composites, particularly in the context of functionally graded metal matrix ...
M. E. Naguib +3 more
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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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Numerical Study of Block Tearing Failure in Steel Angles Connected by One Leg [PDF]
Archives of Civil Engineering, 2021 Block tearing is a failure mode of steel connections based on rupture of material. In this paper, a numerical model is developed to capture fracture initiation and progression until failure in steel angles connected by one leg using single row of bolts ...
Edyta Bernatowska, Lucjan Ślęczka
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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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Numerical analysis of damage during hot forming [PDF]
Computer Methods in Materials Science, 2018 The main aim of the presented research is the analysis of damage evolution in 16MnCrS5 steelduring hot formingbased on results obtained from finite element modelling.
Joanna Szyndler +3 more
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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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Determination of Gurson–Tvergaard–Needleman Model Parameters for Failure of a Polymeric Material
International Journal of Damage Mechanics, 2010 In this work, the Gurson–Tvergaard–Needleman model, commonly used for metallic materials, is applied to the failure of a polymeric material – specifically a polyethylene carbon monoxide copolymer, which is an enhanced photodegradable material. Gurson–Tvergaard–Needleman model parameters for this material are obtained using the Nelder–Mead simplex ...
Oral, Alpay, Anlas, Gunay, Lambros, John
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