Analysis of the crack propagation mechanism of multiple scratched glass-ceramics by an interference stress field prediction model and experiment

Yang, Xue; Gao, Shan

doi:10.1016/j.ceramint.2021.10.026

Cited by 17 publications

(2 citation statements)

References 33 publications

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“…The fracture mode is mainly intragranular as evidenced by Figure 2(f), in agreement with our prior work on hydrogenated La(Fe,Mn,Si)13 [6]. We found previously that hydrogenation changes the fracture mode of this material upon bending tests [6], but we note that in-service fracture mode may also be affected by factors such as corrosive media [7] and/or external stress state [8]. The variation of plate strength with pre-existing crack length, or residual strength curve, is shown in Figure 3.…”

supporting

confidence: 91%

Fracture properties of La(Fe,Mn,Si)13 magnetocaloric materials

et al. 2023

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supporting

confidence: 91%

Fracture properties of La(Fe,Mn,Si)13 magnetocaloric materials

et al. 2023

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“…where, σ c is the crack stress; D is the diameter of the grit. The formation and expansion of microcracks usually occur when the residual stress is greater than the yield strength limit of the material (Guangwu et al, 2020;Yang and Gao, 2022). The crack model is considered as an opening mode during grinding (Ji et al, 2022), as shown in Figure 2.…”

Section: Analysis Of the Mechanism Of Crack Formation During Ultrason...mentioning

confidence: 99%

Study on the impact of ultrasonic vibration-assisted grinding of glass-ceramics on surface/subsurface damage mechanism

Zhang,

Cui,

Wang

et al. 2024

MMMS

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PurposeAn investigation was conducted into the impact of various process parameters on the surface and subsurface quality of glass-ceramic materials, as well as the mechanism of material removal and crack formation, through the use of ultrasonic-assisted grinding.Design/methodology/approachA mathematical model of crack propagation in ultrasonic-assisted grinding was established, and the mechanism of crack formation was described through the model. A series of simulations and experiments were conducted to investigate the impact of process parameters on crack depth, surface roughness, and surface topography during ultrasonic-assisted surface and axial grinding. Additionally, the mechanism of crack formation was explored.FindingsDuring ultrasonic-assisted grinding, the average grinding forces are between 0.4–1.0 N, which is much smaller than that of ordinary grinding (1.0–3.5 N). In surface grinding, the maximum surface stresses between the workpiece and the tool gradually decrease with the tool speed. The surface stresses of the workpiece increase with the grinding depth, and the depth of subsurface cracks increases with the grinding depth. With the increase of the axial grinding speed, the subsurface damage depth increases. The roughness increases from 0.780um/1.433um.Originality/valueA mathematical model of crack propagation in ultrasonic-assisted grinding was established, and the mechanism of crack formation was described through the model. The deformation involved in the grinding process is large, and the FEM-SPH modeling method is used to solve the problem that the results of the traditional finite element method are not convergent and the calculation efficiency is low.

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Comprehensive influence of ultrasonic vibration–assisted technology on material removal mechanism under the excitation of regenerative vibration in precision grinding process

Chen,

et al. 2023

Int J Adv Manuf Technol

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Analysis of the crack propagation mechanism of multiple scratched glass-ceramics by an interference stress field prediction model and experiment

Cited by 17 publications

References 33 publications

Fracture properties of La(Fe,Mn,Si)13 magnetocaloric materials

Fracture properties of La(Fe,Mn,Si)13 magnetocaloric materials

Study on the impact of ultrasonic vibration-assisted grinding of glass-ceramics on surface/subsurface damage mechanism

Comprehensive influence of ultrasonic vibration–assisted technology on material removal mechanism under the excitation of regenerative vibration in precision grinding process

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