Characterization and modeling of the geometrical distortion of thermoplastic composites

• Grant number: 19/04167-3
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: April 01, 2019
• End date: August 31, 2021
• Field of knowledge: Engineering - Aerospace Engineering - Aerospace Structures
• Principal Investigator: Maurício Vicente Donadon
• Grantee: Dante Krivtzoff de Grandis
• Host Institution: Divisão de Engenharia Aeronáutica (IEA). Instituto Tecnológico de Aeronáutica (ITA). Ministério da Defesa (Brasil). São José dos Campos , SP, Brazil
• Associated research grant: 17/50343-2 - Institutional development plan in the area of digital transformation: advanced manufacturing and smart and sustainable cities (PDIp), AP.PDIP

Abstract

The composite material application at several industrial segments has been increasing significantly throughout the last years. This trend is due mostly to the fact that these materials present high specific resistance and rigidity, excellent fatigue performance, corrosion resistance allowing fabrication of complex geometry structural components, significantly reducing the costs and number of parts comprising the overall structure. Moreover, there is a world trend of searching for eco-friendly materials; and such is the case of thermoplastics. Those materials also possess easier recyclability and reparability. Currently the aeronautical and automotive industries see in thermoplastic composites a good material alternative for structural use. However, for their application to be viable, it is of utmost importance que this material's application, when substituting already market available materials, is not over-expensive. Therefore, with the goal of dominating and optimizing fabrication techniques and further to predict the material's behavior during the consolidation process, the current work presents a proposal to develop a numerical model that allows the analysis of manufactured structural components using thermoplastic laminates via the thermoforming process. With the aid of this model, the fabrication parameters can be optimized so that the desired mechanical properties can be reached. The analyses, developed during the project's execution time, will be validated by experiments. In addition, structural thermoplastic based components can be manufactured by using processes already developed by the industry. This work's proposal is innovative, of academic and industrial interest, and possesses a potential impact so that there may lead to a considerable number of publications, technical works and patents, contributing to the progress of this line of research at ITA and IPT. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

GRANDIS, DANTE KRIVTZOFF DE'; DONADON, MAURICIO VICENTE; DE FARIA, ALFREDO ROCHA; MENDONCA SALES-CONTINI, RITA DE CASSIA. CLT based constitutive model to predict distortions and residual stresses in semi-crystalline thermoplastic composite. JOURNAL OF COMPOSITE MATERIALS, v. 55, n. 24, MAY 2021. (19/04167-3)

CANDIDO, GERALDO MAURICIO; SALES, RITA DE CASSIA MENDONCA; ARBELO, MARIANO ANDRES; DONADON, MAURICIO VICENTE. Failure analysis in secondary bonded T-stiffened composite panels subject to cyclic and quasi-static compression loading. INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES, v. 118, p. 10-pg., 2022-10-01. (15/16733-2, 19/04167-3)