Results 11 to 20 of about 13,842,156 (196)

The search for non-evoked markers of pain in the GTN mouse model of migraine

open access: yesScientific Reports
Rodent migraine models have been developed to study the underlying molecular mechanisms of migraine, but these need further development and validation to stay relevant.
Amalie Clement   +3 more
doaj   +5 more sources

DAMAGE PARAMETERS IDENTIFICATION OF ALUMINUM ALLOY BASED ON ANISOTROPIC GTN MODEL

open access: yesJixie 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
doaj   +3 more sources

Application of an Advanced GTN Model [PDF]

open access: yesVolume 1: Advanced Computational Mechanics; Advanced Simulation-Based Engineering Sciences; Virtual and Augmented Reality; Applied Solid Mechanics and Material Processing; Dynamical Systems and Control, 2012
The present contribution consists of implementing an advanced GTN damage model as a "User Material subroutine" in the Abaqus FE code. This damage model is based on specific nucleation and growth laws.This model is applied to the prediction of the damage ...
Maire, Eric   +17 more
core   +2 more sources

Experimental Investigation of GTN model parameters of 6061 Al alloy

open access: yesEuropean Journal of Mechanics - A/Solids, 2020
This research experimentally determines the Gurson-Tvergaard-Needleman (GTN) model damage mechanics parameters for 6061 Al alloys. Five different heat treatment conditions including T4 (natural aging) and T6 (peak strength) conditions of 6061 Al alloy ...
Yildiz, R. A., Yilmaz, S.
core   +3 more sources

Formability prediction using bifurcation criteria and GTN damage model [PDF]

open access: yesInternational 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.
NASIR, Muhammad Waqar   +2 more
core   +5 more sources

Numerical simulation and experimental investigation of ductile fracture in SPIF using modified GTN model

open access: yesMATEC Web of Conferences, 2015
Incremental sheet forming (ISF) is a relatively new flexible forming process with excellent adaptability to CNC milling machines due to the fact that it does not require any high capacity presses or dies of a specific shape and this makes the process ...
Gatea Shakir   +3 more
doaj   +3 more sources

Ductile crack growth using cohesive GTN model

open access: yes, 2021
International audienceThis chapter presents a three-dimensional simulation of ductile crack growth using a recent GTN cohesive approach. A cohesive-volumetric finite element approach is adopted.
Yann Monerie   +9 more
core   +2 more sources

Forming limit diagram prediction of 6061 aluminum by GTN damage model [PDF]

open access: yesMechanics & 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.
Rasoul Safdarian
core   +2 more sources

Determination of the Constants of GTN Damage Model Using Experiment, Polynomial Regression and Kriging Methods [PDF]

open access: yesApplied 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
doaj   +2 more sources

Finite element simulation of rotary blanking based on a modified GTN damage model [PDF]

open access: yes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
doaj   +2 more sources

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