Modelling of localized ductile fracture with volumetric locking‐free tetrahedral elements
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DOI: 10.1002/nme.6323
Abstract: Finite element analysis of ductile fracture with tetrahedral elements faces two numerical issues: volumetric locking and mesh sensitivity. In this paper, two widely adopted remedies for volumetric locking (F‐bar and mixed field) are evaluated, and… read more here.
Keywords: volumetric locking; mixed field; locking free; fracture ... See more keywords
A diffusive‐discrete crack transition scheme for ductile fracture at finite strain
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DOI: 10.1002/nme.7553
Abstract: This study presents a diffusive‐discrete crack transition scheme for stably conducting ductile fracture simulations within a finite strain framework. In the developed scheme, the crack initiation and propagation processes are determined according to an energy… read more here.
Keywords: ductile fracture; crack; crack transition; discrete crack ... See more keywords
Interaction of the Portevin–Le Chatelier phenomenon with ductile fracture of a thin aluminum CT specimen: experiments and simulations
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Fracture"
DOI: 10.1007/s10704-017-0203-5
Abstract: An attempt is made here to capture numerically slant ductile fracture and its early slant strain precursors via combining a dynamic strain aging (DSA) model with ductile damage models. In recent experimental studies it has… read more here.
Keywords: fracture; strain localization; ductile fracture; model ... See more keywords
Edge Fracture Prediction Using Uncoupled Ductile Fracture Models for DP780 Sheet
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DOI: 10.1007/s11668-017-0245-z
Abstract: This paper is a contribution to the prediction of edge fracture behavior using uncoupled ductile fracture models. A fully integrated simulation framework for the edge fracture prediction is proposed with the shear-induced pre-damage considered. User-defined… read more here.
Keywords: fracture; edge fracture; uncoupled ductile; fracture models ... See more keywords
Effect of Magnesium and Calcium Addition on Carbides Characterizations and Anisotropy Ductile Fracture of Inconel 718
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DOI: 10.1007/s13632-018-0449-y
Abstract: Inconel 718 modified by magnesium and calcium was investigated in order to improve the ductile fracture properties of the alloy. Three different types of Inconel 718 containing 50 ppm Mg, 40 ppm Ca, and no trace elements were prepared… read more here.
Keywords: ductile fracture; magnesium calcium; inconel 718;
Variational phase-field formulation of non-linear ductile fracture
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DOI: 10.1016/j.cma.2018.07.029
Abstract: Abstract Variationally consistent phase-field methods have been well established in the recent decade. A wide range of applications to brittle and ductile fracture problems could already demonstrate the ability to predict complex crack patterns in… read more here.
Keywords: ductile fracture; variational phase; phase field; fracture ... See more keywords
Ductile fracture of pipe-ring notched bend specimens – Micromechanical analysis
Sign Up to like & getrecommendations! Published in 2017 at "Engineering Fracture Mechanics"
DOI: 10.1016/j.engfracmech.2017.01.022
Abstract: Abstract Integrity of pipes is typically assessed by testing fracture mechanics specimens, such as compact tensile (CT) or single-edge notched bending (SENB). However, for some pipe dimensions it is not easy or possible to fabricate… read more here.
Keywords: pipe ring; fracture; bend; micromechanical analysis ... See more keywords
Numerical modelling of ductile fracture in steel plates with non-ordinary state-based peridynamics
Sign Up to like & getrecommendations! Published in 2020 at "Engineering Fracture Mechanics"
DOI: 10.1016/j.engfracmech.2019.04.020
Abstract: Abstract This paper presents a methodology for the simulation of ductile fracture in steel plates based on non-ordinary state-based Peridynamics. A novel algorithm of crack approximation is proposed in this work, which makes it easier… read more here.
Keywords: steel; ductile fracture; fracture; steel plates ... See more keywords
A stress-weighted ductile fracture model for steel subjected to Ultra Low Cycle Fatigue
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DOI: 10.1016/j.engstruct.2021.112964
Abstract: Abstract A new criterion is proposed to simulate the initiation of ductile fracture due to Ultra-Low Cycle Fatigue (ULCF). Building on previous research, the new fracture criterion broadens the scope of ULCF models to account… read more here.
Keywords: steel; ductile fracture; fracture; model ... See more keywords
A unified material model for multiaxial ductile fracture and extremely low cycle fatigue of Inconel 718
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Fatigue"
DOI: 10.1016/j.ijfatigue.2016.11.033
Abstract: Abstract This paper summarizes an extensive work of experimental and numerical studies of extremely low cycle fatigue (ELCF) on IN718 under room temperature. The ELCF is focused on low numbers of cyclic loading (fewer than… read more here.
Keywords: extremely low; fatigue; cycle fatigue; model ... See more keywords
A calculating method of tube constants of ductile fracture criteria in tube free bulging process based on M-K theory
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Mechanical Sciences"
DOI: 10.1016/j.ijmecsci.2017.04.012
Abstract: Abstract The purpose of this work was to obtain the accurate constants in ductile fracture criteria based on the M-K theory, which determined the condition of convergence in numerical simulations and predicted the ductile fracture… read more here.
Keywords: tube free; fracture; based theory; free bulging ... See more keywords