Concrete and Fiber Concrete Impact Strength

Surianinov, Mykola; Andronov, Vladimir; Otrosh, Yurii; Makovkina, T.; Vasiukov, S.

doi:10.4028/www.scientific.net/msf.1006.101

Cited by 20 publications

(12 citation statements)

References 14 publications

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“…Подовження строку експлуатації резервуарів, збереження їх герметичності і стійкості при різних впливах природного і техногенного походження, попередження витоків, розливів та пожежної небезпеки є необхідним для підвищення рівня екологічної безпеки прилеглих територій [22][23][24][25]. Врахування пружності стінок приводить до таких результатів.…”

Section: постановка завдання та його вирішенняunclassified

Increasing the Environmental Safety Level of the Territory Adjacent to Locations of Liquid Hydrocarbon Reservoirs

Sierikova

2023

Technogenic and Ecological Safety

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Accumulation of flammable and combustible liquids on a relatively small area of the tank park leads to an increased environmental and fire hazard of such productions. The possible leakage of dangerous liquid and depressurization of tanks negatively affects the state of the environment in the surrounding area. A fire in a tank is one of the most dangerous emergency situations that could lead not only to significant material and environmental damage, but also to human casualties. The situation is also complicated by the economically determined tendency to use larger tanks, which significantly increases the volume of flammable liquids per unit area. This, in turn, increases the risk of fire spreading to neighboring tanks in the absence of timely localization and elimination of the fire. It is urgent and necessary to improve the methods of researching the properties of the materials of liquid hydrocarbon tanks and to assess the effects of external factors of natural and technogenic origin on these environmentally dangerous objects. The method of determining the dynamic characteristics of shell structures made of steel and partially filled with liquid (petroleum products) has been developed in the paper. A numerical analysis of the dynamic characteristics for the model of tanks for the storage of liquid hydrocarbons has been carried out. The optimal parameters of shell structures to reduce their deformations during fluid oscillations (using the example of liquid hydrocarbons) have been determined. It has been proved that taking into account the elasticity of the tank walls leads to a significant decrease in the oscillation frequencies compared to the frequencies of unfilled shells, while the lowest frequencies of filled and unfilled shell structures can correspond to different wave numbers. Extending the service life of tanks, preserving their tightness and stability under various natural and technogenic influences, preventing leaks, spills and fire hazards is necessary to increase the level of environmental safety of the surrounding territories.

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Section: постановка завдання та його вирішенняunclassified

Increasing the Environmental Safety Level of the Territory Adjacent to Locations of Liquid Hydrocarbon Reservoirs

Sierikova

2023

Technogenic and Ecological Safety

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“…Carbon nanofibers have been located along the entire length of the matrix and have the 1 nm diameter, the direction of the fibers coincides with the direction of one of the coordinate axes. The volume fraction of inclusions from 0,025 to 0,25 has been analyzed [20]. The calculated models of the nanocomposite with the volume fraction of inclusions equal to 0,2 have been presented on Fig.…”

Section: Ordered Fibrous Inclusionsmentioning

confidence: 99%

The Deformable and Strength Characteristics of Nanocomposites Improving

Sierikova

Koloskov

Degtyariov

et al. 2021

MSF

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Mechanical properties of composites and nanocomposites have been considered in the assumptions of linear elasticity. To describe the nanoscale contact between matrices and inclusions on the interface surface, the conditions of ideal contact and non-classical Gurtin-Murdoch conditions have been implemented. The influence of shapes and relative sizes of inhomogeneities and matrices of representative volumes on the effective elasticity modulus of nanocomposites has been treated. Matrices in the form of cube and cylinder of finite sizes and inhomogeneity in the form of spheres and fibers have been considered. Finite element-based calculation models have been generalized to composites with distributed nanoinclusions of random and ordered orientation. The resulting models create the informative base for nanocomposites synthesis technologies with improved deformable and strength characteristics.

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“…Rotation shells and composite rotation shells are usually used as tank models, [9], [10]. Tank materials properties have been treated in [11], [12], [13], [14], [15], [16], [17]. The different partition types' effect on the frequencies and tank oscillations amplitudes has been presented in works, [18], [19], [20], [21].…”

Section: Introductionmentioning

confidence: 99%

The Mutual Effect Study of Horizontal and Vertical Loads on the Elastic Tank Partially Filled with Liquid

et al. 2023

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Modern equipment elements in the energy, chemical industry, transport, aviation, and space engineering work under conditions of increased technological loads, at high temperatures and pressure levels. At the same time, the equipment is usually exposed to external loads of various natures. Hydroelastic phenomena must also be taken into account in designing and modernizing tanks and storage facilities for flammable and combustible substances. Flammable and combustible liquid accumulation leads to the increased environmental and fire hazard of such objects. The possible dangerous liquid leakage and tank depressurization negatively affect the surrounding area environment state. A fire in the tank is one of the most dangerous emergencies that could lead both to significant material and environmental damage and to human casualties. The paper treats the environmental hazards reducing problem from liquid hydrocarbon spills from storage tanks, which lead to destructive effects on all environment components especially during emergency situations. It has been established for sufficiently thin tank elastic walls, the fundamental frequency during coupled oscillations could be much lower than the frequency of the fluid in the shell with rigid walls. As the thickness of the tank wall increases, this effect becomes insignificant, and the lower oscillation frequency of the shell with liquid approaches the oscillation frequency of the liquid in a rigid tank. Parametric resonance and sub-resonance effects have been treated.

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Concrete and Fiber Concrete Impact Strength

Cited by 20 publications

References 14 publications

Increasing the Environmental Safety Level of the Territory Adjacent to Locations of Liquid Hydrocarbon Reservoirs

Increasing the Environmental Safety Level of the Territory Adjacent to Locations of Liquid Hydrocarbon Reservoirs

The Deformable and Strength Characteristics of Nanocomposites Improving

The Mutual Effect Study of Horizontal and Vertical Loads on the Elastic Tank Partially Filled with Liquid

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