Banca de QUALIFICAÇÃO: ANDRÉ LUÍS SIMÕES ANDRADE

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : ANDRÉ LUÍS SIMÕES ANDRADE
DATE: 29/05/2023
LOCAL: Qualificação por videoconferência
TITLE:

Evaluation of Mechanical Performance of Frangible Aeronautical Connections Produced by 3D Printing.

KEY WORDS:

Aeronautical components; Frankness; 3D printing; Mechanical properties

PAGES: 80
BIG AREA: Engenharias
AREA: Engenharia Aeroespacial
SUMMARY:

The technological development of devices used in aviation is a costly and complex activity since, for the applicability of these in loco, it is necessary to conduct certification, homologation, and authorization processes, based on international and national regulations. In addition, to meet this flow, the Brazilian industry needs to perform specific evidentiary tests (in triplicate) in certified laboratories outside the country, generating a dependence and burdening the entire process.

 

The possibility of conducting these tests in Brazilian laboratories, meeting the current regulations, could contribute significantly to the technological growth in the aeronautical segment with the development of local products. To contribute to this demand, in this research, frangible connections of components, installed in the security areas of the airport runways, were modeled and made by 3D printing using the copolymer acrylonitrile butadiene styrene (ABS) and polylactic acid (PLA). Specimens produced with both polymers were printed, using 30 and 100% filling, and visual inspection, mechanical dynamic analysis (DMA) characterizations and mechanical simulation were performed to evaluate the frankness. Based on the results, the visual inspection of the connections obtained showed compliance with the dimensional parameters necessary for application in the aircraft segment. The mechanical performance of ABS and PLA samples were performed and a 30% of filling were compatible with those obtained at 100% of filling, which suggests a gain in terms of raw material without loss of properties. Those results were corroborated in the simulations, thus evidencing those aeronautical products such as frangible connections obtained by 3D printing can be produced by this technique, meeting the regulations of the aeronautical segment, with technological feasibility and reduction of inputs, production costs and impacts on the environment. These results are relevant because they show that the analyses may soon be carried out in certified Brazilian laboratories, stimulating competitiveness and enabling the development of new products to meet the national and international aeronautical segment.

COMMITTEE MEMBERS:
Presidente - 2154866 - TIAGO FELIPE DE ABREU SANTOS
Interna - 3100969 - NATHALIA BEZERRA DE LIMA
Externa à Instituição - Tahiana Francisca da Conceição Hermenegildo - UFRN