E3S Web Conf.
Volume 97, 2019XXII International Scientific Conference “Construction the Formation of Living Environment” (FORM-2019)
|Number of page(s)||9|
|Section||Modern Building Materials|
|Published online||29 May 2019|
Mathematical Model of Coextrusion Molding of Polymer-concrete Building Structures
V.I. Vernadsky Crimean Federal University, Pavlenko Str., 3, Simferopol, Crimea, 295000, Russia
2 Lugansk National University named after Vladimir Dal, Department of Automation and Computer-Integrated Technologies, Molodezhnyi Sq., 20-A, Lugansk, 91034, Ukraine
* Corresponding author: firstname.lastname@example.org
The research identifies the optimality criterion of the technological process of the coextrusion molding of polymer-concrete building structures in the form of volumetric capacity as the correlation between forms quantity and technological cycle time. The set of parameters value constraints is made. The set consists of kinematic constraints, extruder’s maximum power constrain, maximum motor torque constraint for the extruder trouble-free operation, constraint on the stress rate of the shift between layers, constraint on product cooling time, and minimum melt viscosity constraint. As a result, the task of coextrusion molding process improvement reduces to the task of linear programming. With the help of mathematical modelling the dynamics of cooling process of the preform in the mould is studied. The paper scrutinizes the influence of bulging pressure on the plybond strength in the multilayer polymer system in the manufacturing process of different capacity items.
© The Authors, published by EDP Sciences, 2019
This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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