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Thermomechanical Peridynamic Modeling for Ductile Fracture. [PDF]

open access: yesMaterials (Basel), 2023
In this paper, we propose a modeling method based on peridynamics for ductile fracture at high temperatures. A thermoelastic coupling model combining peridynamics and classical continuum mechanics is used to limit the peridynamics calculations to the failure region of a given structure, thereby reducing computational costs. Then, a plastic constitutive
Liu S, Han F, Deng X, Lin Y.
europepmc   +3 more sources

Influence of cooling conditions and amount of retained austenite on the fracture of austempered ductile iron [PDF]

open access: yesJournal of the Serbian Chemical Society, 2008
SEM Analysis of fracture surfaces from tensile test specimens of thick-walled, austempered ductile irons (diameter 160 mm) shows different fracture behavior depending on the austenite retained in the matrix.
Goryany Vyacheslav   +2 more
doaj   +3 more sources

Comparison of Modified Mohr–Coulomb Model and Bai–Wierzbicki Model for Constructing 3D Ductile Fracture Envelope of AA6063

open access: yesChinese Journal of Mechanical Engineering, 2021
Ductile fracture of metal often occurs in the plastic forming process of parts. The establishment of ductile fracture criterion can effectively guide the selection of process parameters and avoid ductile fracture of parts during machining. The 3D ductile
Jianye Gao   +5 more
doaj   +1 more source

Evaluation of impact ductile fracture behaviour of low carbon austenitic stainless steel SUS304L using damage mechanics model [PDF]

open access: yesEPJ Web of Conferences, 2021
To clarify the applicability of the Gurson-Tvergaard-Needleman (GTN) model for impact ductile fracture behaviour, SHB test was reproduced by finite element analysis (FEA).
Takazawa Hidekazu   +4 more
doaj   +1 more source

Ductile Fracture Behavior of Mild and High-Tensile Strength Shipbuilding Steels

open access: yesApplied Sciences, 2020
A comparison is made of the ductility limits of one mild (normal) and two high-tensile strength shipbuilding steels with an emphasis on stress state and loading path dependency.
Burak Can Cerik, Joonmo Choung
doaj   +1 more source

Numerical Investigation on Fracture Initiation Properties of Interface Crack in Dissimilar Steel Welded Joints

open access: yesChinese Journal of Mechanical Engineering, 2020
Fracture toughness property is of significant importance when evaluating structural safety. The current research of fracture toughness mainly focused on crack in homogeneous material and experimental results.
Longfei Zhao   +4 more
doaj   +1 more source

Study on Hydrogen Embrittlement Sensitivity of L245 Seamless Steel Pipe Under 4 MPa H2 Environment [PDF]

open access: yesCailiao Baohu, 2023
In order to investigate the hydrogen embrittlement sensitivity of the low-grade pipeline steel in medium-pressure hydrogen environment,the hydrogen embrittlement sensitivity of L245 steel in air environment and 4 MPa hydrogen environment was studied by ...
DU Peien, SONG Weichen, LIU Zhi, FU Guoqiang, LI Ba, WANG Bing, LIU Qingyou
doaj   +1 more source

Mechanical and tribological behavior of dual-phase ductile iron with different martensite amounts

open access: yesJournal of Materials Research and Technology, 2023
Ferrite-martensite (F/M) dual-phase ductile iron with different relative amounts of martensite was fabricated via intercritical quenching in the present study. The mechanical properties and tribological behavior were investigated. The strength of ductile
Chen Liu   +7 more
doaj   +1 more source

Ductile Fracture Prediction of X80 Pipeline Steel Using Void Growth Model

open access: yesMetals, 2022
In this study, the Void Growth Model (VGM) is employed to predict the ductile fracture of X80 pipeline steel. The X80 pipeline tends to be applied in challenging scenarios, such as extremely deep water and long-distance pipelines, which might cause a ...
Chunjian Feng   +4 more
doaj   +1 more source

A New Model for Void Coalescence by Internal Necking [PDF]

open access: yes, 2010
A micromechanical model for predicting the strain increment required to bring a damaged material element from the onset of void coalescence up to final fracture is developed based on simple kinematics arguments.
Becker, R.   +28 more
core   +7 more sources

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