The compare of mechanical properties of composites at AFP technology with two technologies for curing

Kostadinoska, Biljana and Risteska, Svetlana and Samakoski, Blagoja and Capeska, Svetlana (2017) The compare of mechanical properties of composites at AFP technology with two technologies for curing. Knowledge - International Journal, 20 (5). pp. 2471-2479. ISSN 2545-4439

Other (pdf document) THE COMPARE OF MECHANICAL PROPERTIES OF COMPOSITES AT AFP TECHNOLOGY .pdf - Published Version Restricted to Registered users only until 1 May 2025. Download (4MB)

Abstract

The use of composite materials in aerospace, automotive and ship industry allows manufacturing lighter and more efficient mechanical structures. Indeed, proper use of the orthotropic properties of these materials enables further tailoring of the structure to the loadings than when using isotropic materials. However, this comes at the cost of a more complicated design and sizing process firstly because of the orthotropic behavior of composite materials but also because of the manufacturing process which induces specific constraints in the use of these materials. Polymer composites based on carbon fibers are used in a large number of applications. Since the unidirectional composite is the basic building part of the laminate in a composite structure and can be used to make general laminates, the most important is to examine it. Aim of this work is to determine the influence of angles and technologies for curing on the structural and mechanical properties of UD carbon fiber/epoxy laminate, manufactured with automatic fiber placement (AFP) technology. Unidirectional laminates were cured with two processes technologies - pressure and vacuum bagging. After curing (when the laminate passes in the C solid state is polymerized), the laminate is cut into samples of dimensions according to ASTM D3039 for tensile test. The specimen tabs were bonded with a thin adhesive film with low-temperature resistance. The tensile strength and modulus at different laminates with different technologies were calculated since ASTM 3039. The results have shown that the mechanical properties depend on technologies for curing. The results of the present study indicate that angles have a significant effect on composite failure mode. It is also found that the strength and modulus of UD composites both increased at samples curing with press technology. In this paper, study of the influence of fiber orientation on the structural and mechanical properties of laminate manufactured with help of AFP technology is presented. With help of mathematical method was achieved similar thickness on the all of manufactured composite parts, while mechanical properties studied include values of tensile strength, strain and modulus of elasticity. The results shown that with change of angles and technology for press curing can be achieved very good results in tensile strength by sample. It can be seen that sample with press curing technology and 00 angles have shown the best mechanical properties.
Keywords: composite, AFP, tensile strength, curing

Item Type:	Article
Subjects:	Engineering and Technology > Materials engineering Engineering and Technology > Mechanical engineering Natural sciences > Other natural sciences
Divisions:	Faculty of Technology
Depositing User:	Svetlana Risteska
Date Deposited:	06 May 2021 13:12
Last Modified:	06 May 2021 13:12
URI:	https://eprints.ugd.edu.mk/id/eprint/28057

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