Journal ArticleDOI
Experimental stress state-dependent void nucleation behavior for advanced high strength steels
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TLDR
In this article, the influence of microstructure and stress state, as defined by the stress triaxiality and Lode parameter, on micro-void nucleation was evaluated experimentally for two 800MPa Advanced High Strength Steels (AHSS), one a Complex-Phase CP800 alloy, with a ferritic-bainitic micro-structure, and the other a Dual-Phase DP780 ferriticmartensitic steel.About:
This article is published in International Journal of Mechanical Sciences.The article was published on 2020-08-01. It has received 26 citations till now. The article focuses on the topics: Nucleation & Plane stress.read more
Citations
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An extended model for void growth and coalescence - application to anisotropic ductile fracture
TL;DR: In this paper, a model for the axisymmetric growth and coalescence of small internal voids in elastoplastic solids is proposed and assessed using void cell computations.
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Ductile damage of AA2024-T3 under shear loading: Mechanism analysis through in-situ laminography
TL;DR: In this paper, the authors investigated the mechanisms leading to fracture of aluminum alloy AA2024-T3 under shear loading via X-ray synchrotron laminography, and proposed a fracture mechanism based on these observations and assessed with a representative volume element simulation, pointing towards the formation of a shear localization band during the final loading step.
An insight into size effect on fracture behavior of Inconel 718 cross-scaled foils
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In-situ 3D observation of hydrogen-assisted particle damage behavior in 7075 Al alloy by synchrotron X-ray tomography
Yafei Wang,Hiroyuki Toda,Yuan Fan Xu,Kazuyuki Shimizu,Kyosuke Hirayama,Hiroaki Fujihara,Akihisa Takeuchi,Masayuki Uesugi +7 more
TL;DR: In this paper , the authors directly captured, classified, and evaluated 3D particle debonding and fracture behavior in a H-charged 7075 Al alloy throughout the entire tensile deformation using synchrotron X-ray tomography and microstructural feature tracking techniques.
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Micromechanical modelling of edge failure in 800 MPa advanced high strength steels
TL;DR: In this article, the authors investigated the influence of microstructure on micro-void evolution during the edge stretching of ferritic-bainitic complex-phase (CP) steels and developed a micromechanics-based fracture model to predict edge failure for both reamed and sheared holes.
References
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Failure mechanisms in DP600 steel: Initiation, evolution and fracture
TL;DR: In this paper, the authors used in-situ tensile testing inside a scanning electron microscope (SEM) in combination with Digital Image Correlation (DIC) to study the deformation and damage evolution of a commercial DP600 steel up to final failure.
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A modified Gurson model and its application to punch-out experiments
Ken Nahshon,Zhenyu Xue +1 more
TL;DR: A phenomenological modification to the Gurson model that incorporates damage accumulation under shearing has been proposed in this article, which is able to capture the through-thickness development of cracks as well as the punch response.
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Effective Yield Criterion Accounting for Microvoid Coalescence
TL;DR: In this article, an effective yield function is derived for a porous ductile solid near a state of failure by micro void coalescence using homogenization theory combined with limit analysis, which is intended to be used concurrently with a Gursonlike yield function in numerical simulations of ductile fracture.
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Void growth in shear
TL;DR: In this paper, the growth rate of a cylindrical void in an incompressible, nonlinearly viscous solid is analyzed for simple shearing combined with superimposed hydrostatic tension.
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Growth and coalescence of penny-shaped voids in metallic alloys
TL;DR: In this article, an extended Gurson-type constitutive model supplemented by micromechanics-based criteria for both void nucleation and void coalescence is assessed for the limit of very flat voids towards the finite element cell calculations.