Journal
COMPOSITE STRUCTURES
Volume 257, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compstruct.2020.113131
Keywords
Design of experiments; Commingled composites; Crashworthiness; Thermal degradation kinetics; Multiple regression model
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Funding
- FAPESP (Sao Paulo Research Foundation) [2018/24964-2, 2019/22173-0, 2017/16970-0]
- CNPq (National Council for Scientific and Technological Development) [303224/2016-9, 311709/2017-6]
- FINEP [0.1.13.0169.00]
- FAPEMIG (research supporting foundation of Minas Gerais state) [APQ-00385-18, APQ-0184618]
- NSF Early Career Award [DMR-1652994]
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This study uses soft computing techniques to develop an artificial neural network for predicting the impact energy absorption capability of thermoplastic commingled composites, utilizing experimental results and regression models. The innovative approach includes the use of computational methods to optimize manufacturing processes and describe material properties accurately.
Soft computing techniques including artificial neural networks (ANN) and machine learning reflect new possibilities to behavior prediction models of commingled composites. This study focuses on developing an artificial neural network capable of predicting the impact energy absorption capability of thermoplastic commingled composites, in the context of crashworthiness, based on a compilation of experimental results, multiple regression analytical model and factorial design method. Furthermore, the scientific approach of this project comprises the (i) development of intelligent models for designing and manufacturing of new composite components, (ii) application of computational methods to predict material performance and behavior, and (iii) optimization of manufacturing processes. The innovativeness of this proposal is to initiate the use of computational methods to describe mechanical and structural properties of thermoplastic commingled composite materials and the development of an artificial neural network able to predict the energy absorption capability of these materials, considering some properties of polymer matrix, thermal degradation kinetics model and consolidation parameters. The obtained results from impact testing indicate that the proposed approach can predict the impact energy with satisfactory accuracy. The use of an analytical model database as input for the ANN is an innovative methodology to increase the reliability and accuracy of the ANNs.
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