Results 21 to 30 of about 164 (119)

Study of the slant fracture in solid and hollow cylinders: Experimental analysis and numerical prediction

open access: yesFracture and Structural Integrity, 2023
This paper is devoted to the numerical and experimental study of ductile fracture in bulk metal forming of the 2017A-T4 aluminum alloy. From an experimental standpoint, the ductile fracture of the2017A-T4aluminum alloy is investigated under compressive ...
N. Ben Chabane   +2 more
doaj   +1 more source

Inter-void shearing effect on damage evolution under plane strain deformation in high-strength aluminum alloy sheet

open access: yesJournal of Materials Research and Technology, 2023
In this study, the ductile damage responses of high-strength 7000 series aluminum alloy (AA), AA 7075-T6 sheet samples, subjected to the plane strain deformation mode were investigated using finite element (FE) simulations.
Jinwoo Lee   +3 more
doaj   +1 more source

A Numerical Investigation of the Influence of the Material Microstructure on the Failure Mode of Metal Ceramic Composites

open access: yesEngineering Transactions, 2016
Metal failure is often initiated by strain localization in narrow bands. In metal matrix composites, the occurrence and the consequences of this phenomenon are influenced by the material microstructure.
Pitchai PANDI, Gabriella BOLZON
doaj   +1 more source

Anisotropic ductile fracture: experiments, modeling, and numerical simulations

open access: yesJournal of Materials Research and Technology, 2022
The continuous hot rolling process induces anisotropy in the plastic yield and flow and results in an anisotropic ductile fracture. In this study, experiments, including uniaxial in-plane tension tests and shear tests of butterfly specimens along ...
Hongfei Wu   +3 more
doaj   +1 more source

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

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   +1 more source

The numerical modeling of failure of S235JR steel using Gurson-Tvergaard-Needleman material model

open access: yesRoads 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 ...
openaire   +1 more source

Experimental determination and numerical simulation of material and damage behaviour of 3D printed polyamide 12 under quasi-static loading

open access: yesArchives 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
doaj   +1 more source

Numerical Simulation of Some Steel Structural Elements with Uncertain Initial Porosity

open access: yesMetals, 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
doaj   +1 more source

三明治型中心裂纹试样性能失配对材料拘束作用范围的影响研究

open access: yesJixie 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  

Modelling the Damage of Structural Components with Macrostructure Defects

open access: yesMetals, 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
doaj   +1 more source

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