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Chen, Si‐Xin; Ni, Yiqing; Zhang, Lu

doi:10.1002/stc.3045

Cited by 1 publication

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“…However, one of the main problems of using CFRP is its high cost [35]. Analysing the global trend in the cost of composites [36][37][38], dependence has been constructed that indicates that in about 5-10 years the material cost will be equal to that of metal (figure 1). The only way to reduce the cost of CFRP is to improve the process of automating the manufacture of carbon fiber, which can reduce the cost of the material and help to be competitive in the market of innovative and metallic materials.…”

Section: Introductionmentioning

confidence: 99%

Results of research on the stability of mine workings, fixed by arched supports made of composite materials, in the conditions of the Pokrovske Mine Administration

Bondarenko

Kovalevska

Sheka

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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The paper provides a detailed analysis of innovative technologies for maintaining mine workings at great depths. The possibility of using composite materials (in particular, carbonfiber-reinforced plastic) as fastening elements is of special attention. It has been conducted a comparative analysis of the physical-mechanical properties of carbon fiber-reinforced plastic and low-alloy steel, traditionally used for the manufacture of frame support. To conduct a comparative analysis of the stress-strain state, a series of models has been developed and computer modelling has been performed by the finite element method using the Ansys Mechanical software product. In mining-geological conditions Pokrovske Mine Administration, three types of supports, namely, basic, composite with variable section and composite with constant section, have been studied. The initial and boundary conditions, as well as the assumptions and idealization of the model, have been substantiated. A comparative analysis of the stress intensity confirms the advantage of the proposed frame supports made of composite materials in terms of limiting the zones with maximum values. Laboratory research, conducted on a 3D-printer, testifies to the adequacy of conducted modelling. The reliability of the obtained values makes it possible to recommend an innovative support using carbon fiber-reinforced plastic for conducting a mine experiment.

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