Eventos Anais de eventos
COBEF 2023
12th Brazilian Congress on Manufacturing Engineering
Influence of hybridization on the mechanical properties of composites oriented at ±45°
Submission Author:
Giovanni Barbosa da Costa , MS
Co-Authors:
Giovanni Barbosa da Costa, Cássio Lannyego Pascoal de Oliveira Costa, GLORIA CARLOS, Ana Claudia de Melo Caldas Batista
Presenter: Giovanni Barbosa da Costa
doi://10.26678/ABCM.COBEF2023.COF23-0428
Abstract
With regard to materials intended for engineering, It`s a noticeable growing increase in the search to improve or develop new elements, this is due to the need to meet the desires of modern manufacturing that lacks lighter materials that have high structural performance. Thus, polymeric composites, whether hybrid or non-hybrid, are an excellent alternative to meet the requirements of current manufacturing processes, this by virtue of presenting specific characteristics obtained due to the choice of materials involved in their confection. In view of this, this research aims to study the mechanical properties, as well as the influence of hybridization in three composite laminates, hybrid and non-hybrid, with their fibers oriented at ±45°. With the composites having epoxy polymeric resin as a matrix and as reinforcement, the following were used: fiberglass flat fabric (non-hybrid laminate); the combination of fiberglass fabric and aramid fiber fabric (hybrid laminate); and the combination of fiberglass and carbon fiber fabric (hybrid laminate). The composites were made by the Hand Lay-up process, then the specimens were prepared based on the standard ASTM D3039 (2017). Another test implemented was the volumetric density, obeying what determinesin the ASTM D792 (2008) standard. After performing the uniaxial tensile test, one has that, the hybrid composite (carbon-glass) showed a value of (69,87 ± 1,45) MPa for design stress, representing a gain of 44,4% and 43,6% on the non-hybrid (glass) and hybrid (aramid/glass) laminate respectively. Regarding the design deformation, the composite (carbon/glass), whose value obtained was (2,63 ± 0,11)%, once again, stood out from the others tested. By the density test it was found that both hybrid composites are lighter than the non-hybrid. With the results of the tests, it is proved that the application of the hybridization technique in composites (carbon/glass) and (aramid/glass) is efficient and viable, as this technique provided gains in some mechanical properties of these laminates in relation to the composite glass (non-hybrid).
Keywords
Composites, Hybridization, carbon, aramid, Glass, Mechanical Properties
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