IOP Conference Series: Materials Science and Engineering

Journal Information
ISSN / EISSN : 1757-8981 / 1757-899X
Current Publisher: IOP Publishing (10.1088)
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Latest articles in this journal

Yu A Gerber, V G Sebeshev
IOP Conference Series: Materials Science and Engineering, Volume 972; doi:10.1088/1757-899x/972/1/012013

The problem of analysis linearly deformable systems with a finite number of single-mass dynamic vibration dampers (DVD), used as regulators of the stress-strain state (SSS) with different variants of the harmonic load (by location and type) was considered. Equations of state of the system with dampers have been obtained and a method has been proposed to choice a set of parameters (masses and stiffness) for each of the DVD, taking into account the properties of the system, loads, and parameters of other DVD and the specified requirements of regulation. The developed design apparatus has been used for solving a model problem of a dynamic SSS regulation in a rod system with several dampers and for estimation of its reliability with polycriterial serviceability requirements. The quantitative results of calculations are presented. The comparative analysis of the reliability have been performed for unprotected systems and systems with DVD. The possibility of determining the rational location and parameters of DVD under harmonic non-point loading with the target reliability of the structure is shown.
V T Erofeev, T F Elchishcheva, E M Preobrazhenskaya, M V Makarchuk, V V Afonin
IOP Conference Series: Materials Science and Engineering, Volume 972; doi:10.1088/1757-899x/972/1/012056

When making a prototype during design in industrial design, specialists use the data on the strength characteristics of filaments for extrusion provided by the manufacturer of equipment for FDM printing. It is likely that the strength characteristics of the product may deviate from the characteristics of the threads. The authors suggested that the samples of the cellular structure made on 3D printers from polylactide with an internal volume filling of 10% with the filament laying direction according to the standard settings of the equipment manufacturer during the experimental determination of strength characteristics will demonstrate values several times lower than the samples with filling the cell volume with polylactide by 100% and having in their geometry the same direction of laying the extrudable material. To confirm the hypothesis put forward by the authors, a study was carried out of the characteristics of products made of polylactide using the FDM printing method. A comparison is made of the relative change in some parameters of the samples (mass, elongation, and the force used to break the samples), the two devices for growing prototypes – 3D printers MakerBotReplicator 5 Gen and MakerBotReplicator Z18 in percentage terms. Recommendations are given on the optimal operation of equipment for 3D printing, depending on the goals set by the user. The results can be used to select equipment for printing and sample production technology, cell filling density and amount of material when creating a prototype using the additive method in industrial design.
I V Erofeeva, V V Afonin, D V Emelyanov, V A Fedortsov, V V Moiseev, N Yu Podzhivotov, M M Zotkina
IOP Conference Series: Materials Science and Engineering, Volume 972; doi:10.1088/1757-899x/972/1/012052

The paper presents the results of tests of cement composites under the conditions of cyclic exposure to negative and positive temperatures for 45 days. The stability factor (durability) compares the compositions with various fillers and additives. Resistance (long-term preservation of the structure and properties) of composites was estimated from the change in the relative hardness of the material, characterized by the area of the polygon, obtained as a result of a piecewise linear approximation of the exposure points of the test materials.
C S Yusof, N L S Amri, A W Ismail
IOP Conference Series: Materials Science and Engineering, Volume 979; doi:10.1088/1757-899x/979/1/012002

Augmented Reality (AR) is a combination of objects of both real and virtual that partially merged into a single environment. In the education field, the process of teaching and learning can be more interesting with the engagement of AR as aided learning tools during classes. However, the remaining problems are, Biology was one of the subjects that hard for students to easily understand such as learning water transport in the plant. The use of touchscreen in handheld interaction is limited due to screen size for user to use in handheld AR interaction for 3D object manipulation. Therefore, this project aims to develop a Biology lesson handheld AR application using tangible interaction (Bio-WTiP AR). There are three phases that have been carried out, which are AR feature-based tracking, integrate Biology application with tangible interaction in handheld AR and evaluation. The testing and evaluation have been performed based on usability and user acceptance. The results show the application has been accepted by the users as the users found it is interesting to learn the process of water transport in the plant on hand. Based on the results, this project has successfully produced a Bio-WTiP application that can enhance the users learning process at once gave users experience in AR.
Y V Anikin, V I Shilkov
IOP Conference Series: Materials Science and Engineering, Volume 972; doi:10.1088/1757-899x/972/1/012020

The article presents the issues of transition to a sustainable balanced development of economic systems, taking into account the minimization of environmental losses. A thesis on the internal contradictions of modern economic models is proposed. Problems and negative consequences of the introduction of new technologies are noted. The problems of the interaction of economics and ecology are analyzed. The main obstacles to the transition to sustainable development and a green economy are identified.
L O Yakovlev, V A Klimova, S E Shcheklein
IOP Conference Series: Materials Science and Engineering, Volume 972; doi:10.1088/1757-899x/972/1/012008

Prospects of application and advantages of heat-exchangers based on sealed two-phase thermosyphons are compared with analogies of alternative widespread designs. Theoretical limitations of heat transfer are considered. Experimental facility requirements were formulated. Heat transfer coefficients obtained by calculation, computer simulation and in experiments.
G Slavcheva, O Artamonova, D Babenko, A Ibryaeva
IOP Conference Series: Materials Science and Engineering, Volume 972; doi:10.1088/1757-899x/972/1/012042

Z Kramářová
IOP Conference Series: Materials Science and Engineering, Volume 972; doi:10.1088/1757-899x/972/1/012023

V Aksenov, N Tsarev, E Maksimova
IOP Conference Series: Materials Science and Engineering, Volume 972; doi:10.1088/1757-899x/972/1/012033

Vyacheslav Kim, Marina Kim, Michael Kim
IOP Conference Series: Materials Science and Engineering, Volume 972; doi:10.1088/1757-899x/972/1/012011

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