Evaluating the Applicability of GTN Damage Model in Forward Tube Spinning of Aluminum Alloy [PDF]
Metals, 2016 Tube spinning is an effective plastic-forming technology for forming light-weight, high-precision and high-reliability components in high-tech fields, such as aviation and aerospace.
Xianxian Wang +3 more
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Determination of the Constants of GTN Damage Model Using Experiment, Polynomial Regression and Kriging Methods [PDF]
Applied Sciences, 2017 Damage models, particularly the Gurson–Tvergaard–Needleman (GTN) model, are widely used in numerical simulation of material deformations. Each damage model has some constants which must be identified for each material.
Foad Rahimidehgolan +3 more
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Metals, 2018 An increasing demand exists within the automotive industry to utilize aluminum alloy sheets because of their excellent strength-weight ratio and low emissions, which can improve fuel economy and reduce environmental pollution.
Fei Feng +6 more
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Ductility limit prediction using a GTN damage model coupled with localization bifurcation analysis [PDF]
Mechanics of Materials, 2014 Abstract Because the localization of deformation into narrow planar bands is often precursor to material failure, several approaches have been proposed to predict this phenomenon. In this paper, the Gurson–Tvergaard–Needleman (GTN) elastic–plastic–damage model for ductile materials is considered.
Farid Abed-Meraim
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Formability prediction using bifurcation criteria and GTN damage model [PDF]
International Journal of Mechanical Sciences, 2021 In this paper, four plastic instability criteria, which are based on the bifurcation theory, are coupled with the GTN damage model for the prediction of diffuse and localized necking. General bifurcation (GB) criterion and limit-point bifurcation (LPB) criterion are used to predict diffuse necking, while loss of ellipticity (LOE) criterion and loss of ...
NASIR, Muhammad Waqar +2 more
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Study on Influence of Mechanical Behavior of AZ31 Magnesium Alloy Based on GTN Damage Modeling. [PDF]
Materials (Basel)Damage mechanisms are a key factor in materials science and are essential for understanding and predicting the behavior of materials under complex loading conditions. In this paper, the influence of different directions, different rates and different model parameters on the mechanical behavior of AZ31 magnesium alloy during the tensile process is ...
Wang P, Ma C, Xue C, Chu Z.
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Parameter calibration and application of GTN damage model for girth weld in X80 pipeline
You-qi chuyunObjective Numerical simulations represent an important approach to studying the damage evolution behaviors of oil and gas pipelines constructed using high-grade steel.
Zhonghao CUI +6 more
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DAMAGE PARAMETERS IDENTIFICATION OF ALUMINUM ALLOY BASED ON ANISOTROPIC GTN MODEL
Jixie qiangdu, 2018 In this paper,the GTN damage model coupled with anisotropic yield criteria were implemented by establishing a user defined subroutine under the framework of LS-DYNA/Explicit finite element code.
XIAO Jin +5 more
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Finite element simulation of rotary blanking based on a modified GTN damage model
工程科学学报, 2016 Based on the GTN model,a modified GTN model applicable to compressive stress conditions was established by considering the effect of microvoid shear deformation on the loss of load-carrying capacity. The elastic-plastic constitutive model with the damage
LIU Qian +3 more
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Study on Fracture Behavior of Mini-CT Specimen Based on GTN Mesoscopic Damage Model
Yuanzineng kexue jishuTo ensure the safe operation of nuclear power plants, the status of the reaction pressure vessel needs to be monitored in real time. The fracture toughness of the domestic A508-Ⅲ steel, which is the main material, can be used as the primary indicator to ...
YANG Yue1, LI Yihan1, YANG Wanhuan2, LI Junwan1, ZHONG Weihua2, NING Guangsheng2, YANG Wen2
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