Results 31 to 40 of about 18,643,584 (142)
Archives of Mechanics, 2019 In order to characterise the material and damage behaviour of additively manufactured polyamide 12 (PA12) under quasi-static load and to implement it in a numerical model, experiments under quasi-static load as well as microstructural investigations were
D. Schob +8 more
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The numerical modeling of failure of S235JR steel using Gurson-Tvergaard-Needleman material model
Roads and Bridges - Drogi i Mosty, 2012 The paper presents assumptions of the Gurson-Tvergaard-Needleman (GTN) model for a porous materials, which is now one of the basic damage material models applied in the analysis of the load-bearing capacity of metal engineering structures. The practical information about the selection of GTN material parameters and performing numerical calculations is ...
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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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Numerical Simulation of Some Steel Structural Elements with Uncertain Initial Porosity
Metals, 2021 The main research purpose of this work was to study the elasto-plastic responses of some fundamental steel structural elements exhibiting stochastic volumetric microvoids. The constitutive model of the steel material was consistent with the deterministic
Marcin Kamiński, Michał Strąkowski
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Jixie qiangdu, 2021 Different property mismatched laboratory specimens with sandwich structure and center crack that contain the single-edge-notched bend（ SENB）,compact tension（ CT）,single edge-notched tensile（ SENT）,and central-cracked tension（ CCT） specimens were selected,
戴悦, 杨杰, 陈浩峰
doaj
Multiscale Modeling and Simulation of Damage by Void Nucleation and Growth [PDF]
, 2011 Voids are observed to be generated under sufficient loading in many materials, ranging from polymers and metals to biological tissues. The presence of these voids can have drastic implications at the macroscopic level including strong material softening ...
Reina Romo, Celia
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Modelling the Damage of Structural Components with Macrostructure Defects
Metals, 2019 The article presents a numerical analysis of the process of damage of structural steel, the scope of which encompassed the estimation of the time to failure of a structural component.
Paweł Grzegorz Kossakowski
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Investigation of a gradient enriched Gurson-Tvergaard model for porous strain hardening materials
, 2019 Size effects in a strain hardening porous solid are investigated using the Gurson-Tvergaard (GT) model enriched by a constitutive length parameter, as proposed by Niordson and Tvergaard [C.F. Niordson, V.
Tvergaard, V. +3 more
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Grain modeling and finite element simulation of damage evolution for AA5182-O aluminum alloy sheet
Journal of Materials Research and Technology, 2020 The evolution of crystal damage in rolled AA5182-O aluminum alloy sheet was studied by experiment and finite element simulation in this paper. Grain size characteristic on rolling anisotropy was determined by electron backscatter diffraction (EBSD) test ...
Gui Li, Saisai Cui
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Effect of Initial Porosity on Material Response Under Multi-Axial Stress State for S235JR Steel
Archives of Civil Engineering, 2012 The effect of the initial porosity on the material response under multi-axial stress state for S235JR steel using the Gurson-Tvergaard-Needleman (GTN) material model was examined.
Kossakowski P.G.
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