The shipbuilding industry, engine manufacturing, aviation, rocket and space technology are promising fields of application for polymeric composite materials. Shape-generating moulding tools with internal heating are used for the creation of a more economically viable method of moulding of internally heated composite structures. The use of a fine-fibered resistive structure in the heated tools allows implementation of effective heating of the composite and elimination of the need for expensive and energy-intensive heating equipment. The aim of this paper was the reduction of energy consumption for internally heated moulding tools by choosing the optimal parameters for their resistive layer. A method for determination of the parameters of the moulding tool resistive layer was developed. This method allows calculation of the heating layer parameters and implementation of the specified time-temperature regime for moulding of the composite structure. It was shown that energy saving for the heated fiberglass shape-generating moulding tools was from 40 to 60%. It was found that the increase in the thickness of the moulded package of the polymeric composite material resulted not only in a higher supplied power for the heating system, but also in a complication of the method for system control, because of the growing exothermic effect of the binder curing reaction. For composite products based on Hysol EA 9396 binder, thicknesses more than 4 mm are critical, because it is not possible to cope with the self-heating effect only by cooling with ambient air already utilized at the twentieth minute of the moulding process. The influence of the physical and mechanical characteristics of the moulding tool material and stiffening ribs was analysed in terms of energy consumption and controllability of the heating system. Fiberglass shows the lowest energy consumption. Heating of the aluminium and steel moulding tools for the same purpose will require 20% and 45% more power, respectively. An increase in the number of stiffening ribs has a strong effect on the heat removal of the heating system. With a small number of aluminium ribs it is not possible to maintain the specified temperature-time regime for a fiberglass moulded package of 5 mm thick with the use of the equipment. However, when the number of stiffeners is increased to 10, the exothermic effect of the reaction becomes smoother and then the heating equipment can cope with the task. An experimental prototype of heating equipment of moulding tools for the manufacturing of structures of polymeric composite materials, as well as a flexible thermal blanket for repair of non-separable structures, were developed. The results can be the basis for a new method of optimal design of parameters of moulding tool structure at minimal heat removal to the environment.

Department of Building Technology and Construction Materials O M Beketov National University of Urban Economy in Kharkiv Marshal Bazhanov Str 17 61002 Kharkiv Ukraine

Department of Composite Structures and Aviation Materials National Aerospace University Kharkiv Aviation Institute Chkalova Str 17 61070 Kharkiv Ukraine

Department of Railway Automobile Transport and Handling Machines Institute of Transport and Logistics Volodymyr Dahl East Ukrainian National University Central Avenue 59a 93400 Sewerodonetsk Ukraine

Institute of Automotive Engineering Brno University of Technology Technická 2896 2 616 69 Brno Czech Republic

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Hsissou R., Seghiri R., Benzekri Z., Hilali M., Rafik M., Elharfi A. Polymer composite materials: A comprehensive review. Compos. Struct. 2021;262:15. doi: 10.1016/j.compstruct.2021.113640. DOI

Hu Z., Vambol O., Sun S. A hybrid multilevel method for simultaneous optimization design of topology and discrete fiber orientation. Compos. Struct. 2021;266:113791. doi: 10.1016/j.compstruct.2021.113791. DOI

Fomin O.V. Improvement of upper bundling of side wall of gondola cars of 12-9745 model. Metall. Min. Ind. 2015;7:45–48.

Fomin O.V. Modern requirements to carrying systems of railway general-purpose gondola cars. Metall. Min. Ind. 2014;6:39–43.

Alabtah F.G., Mahdi E., Eliyan F.F. The use of fiber reinforced polymeric composites in pipelines: A review. Compos. Struct. 2021;276:114595. doi: 10.1016/j.compstruct.2021.114595. DOI

Fomin O.V. Increase of the freight wagons ideality degree and prognostication of their evolution stages. [(accessed on 15 August 2021)];Sci. Bull. Natl. Min. Univ. 2015 3:68–76. Available online: http://nv.nmu.org.ua/index.php/en/monographs-and-innovations/monographs/1078-engcat/archive/2015/contents-no-3-2015/geotechnical-and-mining-mechanical-engineering-machine-building/3040-increase-of-the-freight-wagons-ideality-degree-and-prognostication-of-their-evolution-stages.

Bychkov A.S., Kondratiev A.V. Criterion-Based Assessment of Performance Improvement for Aircraft Structural Parts with Thermal Spray Coatings. J. Superhard Mater. 2019;41:53–59. doi: 10.3103/S1063457619010088. DOI

Lovska A., Fomin O., Píštěk V., Kučera P. Dynamic Load and Strength Determination of Carrying Structure of Wagons Transported by Ferries. J. Mar. Sci. Eng. 2020;8:902. doi: 10.3390/jmse8110902. DOI

Lovska A., Fomin O., Píštěk V., Kučera P. Dynamic Load Modelling within Combined Transport Trains during Transportation on a Railway Ferry. Appl. Sci. 2020;10:5710. doi: 10.3390/app10165710. DOI

Lovska A., Fomin O. A New Fastener to Ensure the Reliability of a Passenger Car Body on a Train Ferry. Acta Polytech. 2020;60:478–485. doi: 10.14311/AP.2020.60.0478. DOI

Rubino F., Nisticò A., Tucci F., Carlone P. Marine Application of Fiber Reinforced Composites: A Review. J. Mar. Sci. Eng. 2020;8:26. doi: 10.3390/jmse8010026. DOI

Tiwary A., Kumar R., Chohan J.S. A review on characteristics of composite and advanced materials used for aerospace applications. Mater. Today Proc. 2021 doi: 10.1016/j.matpr.2021.06.276. DOI

Tawfik B.E., Leheta H., Elhewy A., Elsayed T. Weight reduction and strengthening of marine hatch covers by using composite materials. Int. J. Nav. Archit. Ocean. Eng. 2017;9:185–198. doi: 10.1016/j.ijnaoe.2016.09.005. DOI

Rodichev Y.M., Smetankina N.V., Shupikov O.M., Ugrimov S.V. Stress-strain assessment for laminated aircraft cockpit windows at static and dynamic loads. Strength Mater. 2018;50:868–873. doi: 10.1007/s11223-019-00033-4. DOI

Kovalov A.I., Otrosh Y.A., Vedula S., Danilin O.M., Kovalevska T.M. Parameters of fire-retardant coatings of steel constructions under the influence of climatic factors. Nauk. Visnyk Natsionalnoho Hirnychoho Universytetu. 2019;3:46–53. doi: 10.29202/nvngu/2019-3/9. DOI

Junior M.M.W., Reis J.M.L., da Costa Mattos H.S. Polymer-based composite repair system for severely corroded circumferential welds in steel pipes. Eng. Fail. Anal. 2017;81:135–144. doi: 10.1016/j.engfailanal.2017.08.001. DOI

Zhou W., Ji X.-l., Yang S., Liu J., Ma L.-h. Review on the performance improvements and non-destructive testing of patches repaired composites. Compos. Struct. 2021;263:113659. doi: 10.1016/j.compstruct.2021.113659. DOI

Kurennov S.S., Polyakov O.G., Barakhov K.P. Two-Dimensional Stressed State of an Adhesive Joint. Nonclassical Problem. J. Math. Sci. 2021;254:156–163. doi: 10.1007/s10958-021-05295-5. DOI

Kondratiev A., Gaidachuk V., Nabokina T., Tsaritsynskyi A. New Possibilities of Creating the Efficient Dimensionally Stable Composite Honeycomb Structures for Space Applications. Adv. Intell. Syst. Comput. 2020;1113:45–59. doi: 10.1007/978-3-030-37618-5_5. DOI

Ugrimov S., Smetankina N., Kravchenko O., Yareshchenko V. Analysis of Laminated Composites Subjected to Impact. Lect. Notes Netw. Syst. 2021;188:234–246. doi: 10.1007/978-3-030-66717-7_19. DOI

Eranosyan K., Efimova O., Maslich E., Fedonyuk N. Transactions of the Krylov State Research Centre, Special Edition 1. KSRC Information & Publishing Center; Saint Petersburg, Russia: 2019. Post-repair strength of hull made of polymeric composites; pp. 202–207. DOI

Gaiotti M., Ravina E., Rizzo C.M., Ungaro A. Testing and simulation of a bolted and bonded joint between steel deck and composite side shell plating of a naval vessel. Eng. Struct. 2018;172:228–238. doi: 10.1016/j.engstruct.2018.06.008. DOI

Kondratiev A., Slivinsky M. Method for determining the thickness of a binder layer at its nonuniform mass transfer inside the channel of a honeycomb filler made from polymeric paper. East.-Eur. J. Enterp. Technol. 2018;6:42–75. doi: 10.15587/1729-4061.2018.150387. DOI

Centea T., Grunenfelder L.K., Nutt S.R. A review of out-of-autoclave prepregs-Material properties, process phenomena, and manufacturing considerations. Compos. Part A-Appl. Sci. Manuf. 2015;70:132–154. doi: 10.1016/j.compositesa.2014.09.029. DOI

Baran I., Cinar K., Ersoy N., Akkerman R., Hattel J.H. A Review on the Mechanical Modeling of Composite Manufacturing Processes. Arch. Comput. Methods Eng. 2017;24:365–395. doi: 10.1007/s11831-016-9167-2. PubMed DOI PMC

Budelmann D., Schmidt C., Meiners D. Prepreg tack: A review of mechanisms, measurement, and manufacturing implication. Polym. Compos. 2020;41:3440–3458. doi: 10.1002/pc.25642. DOI

Nguyen N., Hao A.Y., Park J.G., Liang R. In Situ Curing and Out-of-Autoclave of Interply Carbon Fiber/Carbon Nanotube Buckypaper Hybrid Composites Using Electrical Current. Adv. Eng. Mater. 2016;18:1906–1912. doi: 10.1002/adem.201600307. DOI

Hayes S.A., Lafferty A.D., Altinkurt G., Wilson P.R., Collinson M., Duchene P. Direct electrical cure of carbon fiber composites. Adv. Manuf.-Polym. Compos. Sci. 2015;1:112–119. doi: 10.1179/2055035915Y.0000000001. DOI

Garmendia I., Vallejo H., Iriarte A., Anglada E. Direct Resistive Heating Simulation Tool for the Repair of Aerospace Structures through Composite Patches. Math. Probl. Eng. 2018;2018:4136795. doi: 10.1155/2018/4136795. DOI

Liu S.T., Li Y.G., Xiao S.J., Wu T. Self-resistive electrical heating for rapid repairing of carbon fiber reinforced composite parts. J. Reinf. Plast. Compos. 2019;38:495–505. doi: 10.1177/0731684419832793. DOI

Dimoka P., Vlachos D., Athanasopoulos N., Kotrotsos A., Antoniadis K., Kostopoulos V. Self-Heating Composite molds for the “green” manufacturing of composite components; Proceedings of the 10th Hellenic Polymer Society Conference; Patras, Greece. 4–6 December 2014.

Jayasree N., Omairey S., Kazilas M. Novel multi-zone self-heated composites tool for out-of-autoclave aerospace components manufacturing. Sci. Eng. Compos. Mater. 2020;27:325–334. doi: 10.1515/secm-2020-0033. DOI

Purhina S.M., Vambol O.O., Stavychenko V.G., Shevtsova M.A. In: Modeling the Process of Forming Composite Structures. Shevtsova M.A., editor. National Aerospace University “Kharkiv Aviation Institute” Publ.; Kharkiv, Ukraine: 2016.

Kondratiev A., Purhina S., Shevtsova M., Tsaritsynskyi A. 2021 IEEE KhPI Week on Advanced Technology. IEEE; Kharkiv, Ukraine: 2021. Thermodynamic model of self-heating mold for the energy efficient composite. In press.

Determination of the Composite Panel Moulding Pressure Value

Effect of Heating Conditions during Moulding on Residual Stress-Strain Behaviour of a Composite Panel

Influence of Geometric Parameters of Conical Acrylic Portholes on Their Stress-Strain Behaviour

Effects of the Temperature-Time Regime of Curing of Composite Patch on Repair Process Efficiency

Stress-Strain Behaviour of Reparable Composite Panel with Step-Variable Thickness