Analysis of Efficiency of Fiberglass Ring and Band Springs

Полилов, А. Н.; Tatus, N. A.; Zhavyrkin, V. V.; Tian, Xiaoyong

doi:10.3103/s1052618820030097

Cited by 2 publications

(2 citation statements)

References 3 publications

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“…Depending on how the filler is impregnated, there are two types of winding: wet and dry (figure 1) [9][10]. Wet winding involves impregnating the yarns immediately before winding on the mandrel.…”

Section: Windingmentioning

confidence: 99%

“…There are two types of technology -direct pressure impregnation (RTM) and vacuum impregnation (RTM-light). In RTM the solid punch is pressed against the die by additional pressure, while impregnation in vacuum involves the pressing of the die and punch by atmospheric pressure due to the vacuum inside [9]. The light punch is to the die.…”

Section: Resin Transfer Moldingmentioning

confidence: 99%

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Features of production technologies of composite parts for the railway industry

Tatus

Vlasov²,

Zhavyrkin³

2023

E3S Web of Conf.

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The present article presents a comparative analysis of the technologies of manufacturing parts made of polymer fibrous composites. For each technology the advantages and disadvantages of its application are given, as well as the types of manufactured products are indicated. Based on these features, conclusions were made about the possibility and effectiveness of the described technologies for the production of composite parts for the railway industry. In addition to the standard, widely used technologies, 3D printing, which refers to the rapidly developing additive technologies, was considered. The comparison of technologies according to the key parameters is given in tabular form.

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Section: Windingmentioning

confidence: 99%

Section: Resin Transfer Moldingmentioning

confidence: 99%

Features of production technologies of composite parts for the railway industry

Tatus

Vlasov²,

Zhavyrkin³

2023

E3S Web of Conf.

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Experience nature as a basis for building strong composite structures

Полилов

Tatus

2021

Vestnik MGSU

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Introduction. The article is devoted an analytical overview of the methods of applying the Nature solutions for designing structures made of plastics reinforced with fibers, in particular, using rational curved fiber trajectories. The first section provides an overview of different structural models and some approaches to the micromechanics of composites. Materials and methods. Sections 2-7 discuss: analysis of rational elastic-strength properties of wood and composites for crack arrest by weak interface; methods for constructing curved paths of fibers of “flowing holes”; analyzes the applied and promising technologies for manufacturing attachment points, in which holes are formed using curvilinear fiber paths; “nature-inspired” principles of optimal design of pipe composite structures similar in structure to ladder of bamboo stalk; examples of the effective use of fibrous composites in elastic elements such as leaf springs; developing additive technologies for 3D printing of fiber composite parts with fiber laying along calculated trajectories. Results. Each section of the article presents conclusions related to the peculiarities of composites structures calculation and design: calculations show that in order to increase the crack resistance of fibrous composites, it is necessary to significantly increase the shear characteristics of the binder and strive for rational properties created by Nature in wood; as a result of the calculation, it turns out that the maximum stress per fiber at the optimal reinforcement structure becomes about 3–4 times less than with a uniform rectilinear laying; rational reinforcement leads to a significant reduction in local stresses per fiber, elimination of splits and damages of fibers and an increase in the carrying capacity of the assembly; it has been shown that the bamboo rings are arranged to prevent the barrel from splitting from bending compressive stresses and tangential stresses when the barrel is twisted by wind load; analyzed the relationship of equal-strength profiling with Leonardo’s rule for tree crown branching. The works on creation of bio-similar shape and structure of curvilinear reinforcement of specimens for correct determination of unidirectional composites strength at tension along fibres were discussed; analyzed the role of composite technologies in modern mechanical engineering, in particular, in the creation of composite structures in open space. Conclusions. The article is devoted to the analysis of the tasks of fibrous composites macromechanics, therefore, in the opinion of the authors, the three most promising and related areas in macromechanics of composites that require further research are biomechanics of strength, computer modeling of optimal structures and technological mechanics of composites.

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Analysis of Efficiency of Fiberglass Ring and Band Springs

Cited by 2 publications

References 3 publications

Features of production technologies of composite parts for the railway industry

Features of production technologies of composite parts for the railway industry

Experience nature as a basis for building strong composite structures

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