Thin-walled profiles and their joint assembly units built with screws: numerical studies of load bearing capacity

Alpatov, Vadim; Soloviev, Alexey

doi:10.1051/matecconf/201819601008

Cited by 11 publications

(5 citation statements)

References 7 publications

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“…The principle of operation of the upgraded ICE cooling systems is described in detail in [21,22]. As the control unit in the proposed systems, it is possible to use a programmable microprocessor, for example ATMega8 or PIC16F1823, which will allow adjusting the pressure in the cooling system depending on the engine operating mode according to the program stored in the control unit and the additive entering the cooling system depending on the physicochemical properties of the coolant.…”

Section: Resultsmentioning

confidence: 99%

Regulation and control in cooling systems of internal combustion engines

et al. 2019

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The paper is devoted to the urgent problem of improving the automatic regulation of the thermal state of internal combustion engines and controlling the water-chemical cooling regimes during the transition to high-temperature cooling. Principal and functional diagrams of cooling systems with improved control are presented. The prospects of controlling the pressure in the internal circuit of high-temperature engine cooling systems and the automatic control of the physicochemical characteristics of the coolant have been proved.

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Section: Resultsmentioning

confidence: 99%

Regulation and control in cooling systems of internal combustion engines

et al. 2019

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“…The most common connections are made with rivets, self-drilling screws, threaded and nut screws, welds or stampings [33][34][35][36]. Many research papers study the nonlinear behavior of both profiles and connectors but address only 3D or 2D finite element modelling and emphasize the profile response [37][38][39][40][41].…”

Section: Introductionmentioning

confidence: 99%

Sustainable Design for CFS Structures: Experimental Data and Numerical Models of Hinged Connections

et al. 2022

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Cold-formed steel structures represent a suitable alternative to classical, by now, structural solutions considering the recycling/reuse tendency worldwide as part of the circular economy paradigm. The paper presents a new design approach for CFS profile joints to accurately predict their realistic behavior, based on experimental and numerical investigation of two types of connectors frequently used in the construction industry for manufacturing joints made of CFS profiles: steel-steel pop-rivets (SSPR) and self-tapping screws (STS). The experiments carried out in the case of T-joints subjected to tensile forces tested both solutions. Another significant parameter of the research was the thickness of the steel sheet used to make the CFS profiles. A number of 20 specimens of T-joints made of Cold-Formed Steel (CFS) profiles in total were tested. These consist of five specimens for each of two types of steel sheet thicknesses. The results are relevant for designers because they provide relevant data concerning the limited axial rigidity of T-joints, which are an important instrument in numerical models for achieving the optimum design of the structural system in terms of strength and overall rigidity. Experimental tests calibrate the numerical model that accounts for the axial stiffness of the hinged joints between the CFS profiles. The main parameters of the research are the thickness of the steel sheet and the connector type. The calibrated numerical model used in a case study highlights the advantages of the new approach compared to the classical design procedure based on a conventional hinged connection. Based on the results, the conclusion is that, besides the geometry of the joint and the connector type, the joint stiffness plays a crucial role in the overall behavior of the structural system and should be accounted for in the design process.

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“…Usually, SPW is performed with the penetration of each pile on the same depth ( Figure 1). This design is characterized by uniform operation and equal reliability in the entire perimeter of the structure [5][6][7][8][9]. For this design, methods for estimating its load capacity and rigidity were developed.…”

Section: Introductionmentioning

confidence: 99%

Numerical studies of steel pipe sheet pile

Alpatov

Bezuglov

2019

MATEC Web Conf.

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The sheet pile wall (SPW) is carried out from pipes of big diameter which plunge into soil very deeply. Depth of pipes is the settlement size depending on a set of parameters. Depth of pipes provides rigidity and reliability of a construction. SPW has a high rate of a consumption of steel on his production. Authors of the present article suggest to reduce a material capacity of SPW at the expense of reduction of depth of blockage of every second pipe. Decrease in depth of blockage of separate pipes is carried out at preservation of the maximum depth of blockage of other pipes. The design similar to a «comb» because of alternation of long and short pipes turns out. Such decision allows to reduce the total depth of blockage of pipes and as a result leads to decrease in a material capacity and cost of a construction in general. The problem of search of possible reduction of length of a part of pipes is the purpose of the real research. As solutions of the put problem we suggest to execute numerical experimenting in iterative statement with use of modern software. Results of numerical researches of SPW are presented in the present article. The presented results allow to draw a conclusion on efficiency of the solution on decrease in a material capacity of SPW proposed by authors. For obtaining the generalized decision and obtaining undoubtedly the best result of a design of SPW authors consider necessary to execute problem definition in the form of parametrical optimization.

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Thin-walled profiles and their joint assembly units built with screws: numerical studies of load bearing capacity

Cited by 11 publications

References 7 publications

Regulation and control in cooling systems of internal combustion engines

Regulation and control in cooling systems of internal combustion engines

Sustainable Design for CFS Structures: Experimental Data and Numerical Models of Hinged Connections

Numerical studies of steel pipe sheet pile

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