Space wave equation considering damage-induced weakening and strain rate dependency of rock

Zhai, Yue; Li, Nan; Wang, Siwei; Zhang, Yutao

doi:10.17559/tv-20150406112756

Cited by 3 publications

(1 citation statement)

References 5 publications

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“…Also in the case of mining-related machining, the damage processes of machined stone types were examined by Wang et al [14], who used a finite element simulation method. Revealing results were published by Zhai et al [15], who examined surface damaging and breaking effects of different frequency vibration waves in the case of granite materials.…”

Section: Literature Reviewmentioning

confidence: 94%

Researching the Effects of Feedrate and Diamond Grain Size on Edge Chipping of Milled Granites

Gyurika

2018

Teh. vjesn.

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Natural stones are common and preferred materials in the construction industry and in manufacturing technology, too. In every field of their application, it is outstandingly important that chipping caused by machining be minimised on the products' edges. The primary aim of this research was to examine chippings and damages at the edges of sample granite surfaces. The chippings and damages under scrutiny in this paper were caused by milling machining, and such machining was executed using different feedrate speeds and diverse diamond grain sizes. Within the scope of this paper, the results of the experiments were used to generate recommendations concerning the minimization of edge chipping. The results of the study show that the diamond grains' average size in the segments of the milling tools and the reduction of the applied feedrate obviously influences the magnitude of the rate of average edge chipping.

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Section: Literature Reviewmentioning

confidence: 94%

Researching the Effects of Feedrate and Diamond Grain Size on Edge Chipping of Milled Granites

Gyurika

2018

Teh. vjesn.

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Research results and future orientations for the development of a pre-estimation system for the measure of the quantitative determination of milled granite surfaces

Cserta

Gyurika

2018

IOP Conf. Ser.: Mater. Sci. Eng.

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Fractal Characteristics and Energy Dissipation of Granite After High-Temperature Treatment Based on SHPB Experiment

Liu

Wang

2022

Front. Earth Sci.

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In deep mining and high-concentration nuclear waste storage engineering, the surrounding rocks may be subjected to the combined action of high-temperature fire and impact load. In this study, the fracture morphology and the energy dissipation of granite following high-temperature treatment at 25–800°C were analyzed using the split Hopkinson pressure bar (SHPB) device. The fracture characteristics and the dynamic mechanical properties of granite were determined. The energy dissipation of granite specimens affected by high temperatures in the SHPB experiment was also analyzed. When the temperature of the impact rate was less than 200°C, the fragmentation degree, transmitted energy, and dissipated energy of granite increased with an increase in temperature. When the temperature was higher than 200°C, the change law was opposite. A strong linear correlation existed among the fragmentation, fractal dimension, and energy consumption density of granite at different impact rates after high-temperature treatment. Moreover, a strong quadratic correlation existed between the damage factors and temperature. When the temperature was less than 200°C, the damage factor decreased with the increase in temperature. When the temperature was higher than 200°C, the change law was opposite, which corresponded with the influence law of temperature on dynamic compressive strength. Scanning electron microscopy and X-ray diffraction analyses were conducted to study the fracture modes and mineral composition changes in the granites. A quantitative relationship existed between macro- and meso-properties. The results could provide theoretical basis for the design of underground engineering structures, post-disaster assessment, and rehabilitation activities.

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Space wave equation considering damage-induced weakening and strain rate dependency of rock

Cited by 3 publications

References 5 publications

Researching the Effects of Feedrate and Diamond Grain Size on Edge Chipping of Milled Granites

Researching the Effects of Feedrate and Diamond Grain Size on Edge Chipping of Milled Granites

Research results and future orientations for the development of a pre-estimation system for the measure of the quantitative determination of milled granite surfaces

Fractal Characteristics and Energy Dissipation of Granite After High-Temperature Treatment Based on SHPB Experiment

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