Detail publikace

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

KONDRATIEV, A. PÍŠTĚK, V. VAMBOL, O. KUČERA, P.

Originální název

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

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Currently, we observe extensive use of products made of polymeric composite materials in various industries. These materials are being increasingly used to manufacture large-sized structural parts that bear significant loads. However, increase in the volume of composites used in critical structures is impeded by the instability of properties of the resulting products. In most cases, the reason for this is the residual thermal stress–strain behaviour of the composite structure. This paper deals with the development of a method to predict the residual stress–strain behaviour depending on the heating conditions and distribution of the temperature field over the thickness of the moulded composite package. The method establishes the relationship between moulding process parameters and the effect of the auxiliary and basic equipment on the distribution of the temperature field, stresses, and strains in the moulded product. It is shown that the rate of temperature change at the stage of heating has its effect on the amount of residual deformation of the structure. Experimental studies have been carried out to determine the influence of several factors (rates of heating and cooling) on the residual deflection of the composite panel. Experimental data proves that specimens moulded under conditions of an increased heating rate get a greater deflection than those moulded at a lower heating rate. The error of results during the full-scale experiment did not exceed 6.8%. Our results provide an opportunity to determine the residual thermal stress–strain behaviour of the moulded structure with the required degree of accuracy without a series of experiments. It allows us to significantly simplify the practical implementation of the developed method and avoid any additional production costs.

Klíčová slova

process parameters; equipment; thermoelasticity; temperature differential

Autoři

KONDRATIEV, A.; PÍŠTĚK, V.; VAMBOL, O.; KUČERA, P.

Vydáno

20. 4. 2022

Nakladatel

MDPI

ISSN

2073-4360

Periodikum

Polymers

Ročník

14

Číslo

9

Stát

Švýcarská konfederace

Strany od

1

Strany do

14

Strany počet

14

URL

https://www.mdpi.com/2073-4360/14/9/1660

Plný text v Digitální knihovně

http://hdl.handle.net/11012/204115

BibTex

@article{BUT177585,
  author="Andrii {Kondratiev} and Václav {Píštěk} and Oleksii {Vambol} and Pavel {Kučera}",
  title="Effect of Heating Conditions during Moulding on Residual Stress–Strain Behaviour of a Composite Panel",
  journal="Polymers",
  year="2022",
  volume="14",
  number="9",
  pages="1--14",
  doi="10.3390/polym14091660",
  issn="2073-4360",
  url="https://www.mdpi.com/2073-4360/14/9/1660"
}