Results 181 to 190 of about 23,987,835 (236)

A shear modified GTN model based on stress degradation method for predicting ductile fracture

Modelling and Simulation in Materials Science and Engineering, 2023
The Gurson–Tvergaard–Needleman (GTN) model has provided a powerful description of the nucleation growth and coalescence of micro voids, but it has limitations in simulating shear fracture due to the absence of a description of shear localization behavior.
Fanlei Min, K. Gao, Xiaojun Zhang, Wu Wei, Peng Qi, Xiaolan Wu, S. Wen, Hui Huang, Zuoren Nie, Deijing Zhou   +9 more
semanticscholar   +1 more source

Anisotropic mechanical behavior prediction of aluminum alloy sheet based on an anisotropic GTN model: Modeling, simulation and experimental investigation

Mechanics of Advanced Materials and Structures, 2022
The rolled aluminum alloy sheets usually have anisotropic properties that affect its ductile fracture behavior. In order to study the plastic anisotropy and ductile fracture behavior of aluminum alloy 6016 sheet, the Hill48 anisotropic yield criterion is
Zao He, Hao Zhu, Yumei Hu
semanticscholar   +1 more source

Material Parameters in the GTN Model for Ductile Fracture Simulation of G20Mn5QT Cast Steels

Journal of Materials in Civil Engineering, 2022
Yue Yin, Yan Lu
exaly   +2 more sources

An extended GTN model for indentation-induced damage

Computational Materials Science, 2017
Abstract The damage of metallic alloys induced by tensile deformation can be well described by Gurson-Tvergaard-Needleman (GTN) model. However, damage growth under intense shear loading, which has been found in micro-/macro-indentation tests, cannot be captured by this model.
Youbin Chen, Chunyu Zhang, Christophe Varé   +2 more
openaire   +1 more source

No additive effect of combining sumatriptan and olcegepant in the GTN mouse model of migraine

Cephalalgia, 2020
Introduction Despite recent advances in migraine treatment there is a need for therapies with higher clinical efficacy and/or fewer side effects. Triptans (5-HT1B/1D/1F agonists) are essential in the present treatment regime and gepants (CGRP-receptor antagonists) are recognized as effective in acute migraine treatment.
Charlotte Ernstsen, Sarah L Christensen, Jes Olesen, David M Kristensen   +3 more
openaire   +3 more sources

Application of GTN Model in Tensile Fracture of Pipeline Steel

Key Engineering Materials, 2018
In this paper, the macroscopic mechanical behavior of tensile fracture of X70 pipeline steel is combined with the evolution of mesoscopic pores. The ABAQUS finite element software was used to analyze the variation of pore volume fraction in the tensile failure process of unilateral notched specimens with Gurson-Tvergaard-Needleman (GTN) mesoscopic ...
Ye Da Lian, Ren Qiang Wu, Bing Zhang, Tao Feng   +3 more
openaire   +1 more source

Calibration of GTN model for fracture analysis of steel plates with holes

Journal of Constructional Steel Research
Yue Yin, Teng Yang, Wenjia Qin, Yan Lu, Yimei Gu   +4 more
openaire   +2 more sources

A complete GTN model for prediction of ductile failure of pipe

Journal of Materials Science, 2008
The micro mechanical model by Gurson–Tvergaard–Needleman is widely used for the prediction of ductile fracture. Some material properties (Gurson parameters) used as material input in this model for simulation are estimated experimentally from specimen level.
S. Acharyya, S. Dhar
openaire   +1 more source

No central action of CGRP antagonising drugs in the GTN mouse model of migraine

Cephalalgia, 2020
Introduction Clinically, calcitonin gene-related peptide antagonising drugs are recognized as effective in migraine treatment, but their site of action is debated. Only a small fraction of these compounds pass the blood-brain barrier and accesses the central nervous system.
Sarah L Christensen, Charlotte Ernstsen, Jes Olesen, David M Kristensen   +3 more
openaire   +3 more sources

Determining the Parameters of Gurson-Tvergaard-Needleman (GTN) Model for Predicting the Failure of Wrought and Fused Filament Fabricated 17-4 PH Stainless Steel

Journal of manufacturing science and engineering
Metal additive manufacturing is an emerging technology for creating metallic parts, with metal fused filament fabrication (FFF) rapidly gaining popularity due to its cost-effectiveness.
Bita Porrang, Muhammad Asim Ghaffar, S. A. Hosseini   +2 more
semanticscholar   +1 more source