Multiscale Simulation of Metal/Ceramic Interface Fracture

Siddiq, M.; Schmauder, Siegfried

doi:10.1007/978-90-481-3771-8_35

Cited by 2 publications

(1 citation statement)

References 15 publications

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“…Over the past few years, the crystal plasticity based finite element method (CPFEM) has been widely used to analyze anisotropic deformation mechanisms in polycrystalline metals [8][9][10]. This method has also been coupled with the cohesive finite element method (CFEM) to address the material fracture behaviors [11][12][13][14]. Currently, most of these models only consider "virtual" idealized microstructures and intergranular fracture along the grain boundaries.…”

Section: Introductionmentioning

confidence: 99%

A Multiscale Framework for Predicting Fracture Toughness of Polycrystalline Metals

Zhou

2014

Matls. Perf. Charact.

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Microstructure has a strong influence on fracture toughness of materials through the activation of different fracture mechanisms. To tailor the fracture resistance through microstructure design, it is important to establish relations between microstructure and fracture toughness. A multiscale computational framework based on the Cohesive Finite Element Method (CFEM) is introduced to facilitate relations between microstructure and the fracture toughness of ductile polycrystalline materials. This material design framework includes 3D image based microstructure reconstruction, 3D meshing, and finite element implementation. It allows the material fracture toughness to be predicted through explicit simulation of fracture processes involving arbitrary crack paths, crack tip microcracking, and branching. Cohesive elements are embedded both within the grains and along the grain boundaries to resolve the different material separation processes. The calculations carried out concern Ti-6Al-4V alloy and focused on the two primary fracture mechanisms which are correlated with microstructure characteristics, constituent properties, and deformation behaviors. The methodology is potentially useful for both the selection of materials and tailoring of microstructure to improve fracture resistance.

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Section: Introductionmentioning

confidence: 99%

A Multiscale Framework for Predicting Fracture Toughness of Polycrystalline Metals

Zhou

2014

Matls. Perf. Charact.

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Effect of Preliminary Irradiation of 321 Steel Substrates with High-Intense Pulsed Ion Beams on Scratch Test Results of Subsequently Deposited AlN Coatings

et al. 2021

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The paper presents the effect of irradiation of 321 steel substrates with a high-intense pulsed ion beam (HIPIB) on changes in functional properties of the surface layers and tribological characteristics of AlN coatings subsequently deposited above by the reactive magnetron sputtering method. The morphology of the modified surface layers, their microhardness and free surface energy levels are presented for different HIPIB energy densities. HIPIB irradiation of the substrates caused variations in the results of scratch tests combined with the acoustic emission signal processing. Their analysis has enabled concluding that the crack initiation threshold could be at least doubled for the studied coating/substrate system due to preliminary HIPIB irradiation. Finally, the obtained data were discussed, and future research directions were proposed.

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Multiscale Simulation of Metal/Ceramic Interface Fracture

Cited by 2 publications

References 15 publications

A Multiscale Framework for Predicting Fracture Toughness of Polycrystalline Metals

A Multiscale Framework for Predicting Fracture Toughness of Polycrystalline Metals

Effect of Preliminary Irradiation of 321 Steel Substrates with High-Intense Pulsed Ion Beams on Scratch Test Results of Subsequently Deposited AlN Coatings

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