Optimal deflection and stacking sequence prediction of curved composite structure using hybrid (FEM and soft computing) technique

Sharma N., Lalepalli A. K., Hirwani C. K., Das A., Panda S. K., TOPAL U., ...More

Engineering with Computers, vol.37, pp.477-487, 2021 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 37
  • Publication Date: 2021
  • Doi Number: 10.1007/s00366-019-00836-8
  • Journal Name: Engineering with Computers
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Applied Science & Technology Source, Communication Abstracts, Compendex, Computer & Applied Sciences, INSPEC, Metadex, zbMATH, Civil Engineering Abstracts
  • Page Numbers: pp.477-487
  • Keywords: Layered composite, Deflection, HSDT, PSO, TLBO, HSDT, Optimization
  • Karadeniz Technical University Affiliated: Yes


The bending deflections and the corresponding optimal fiber angle sequences of the subsequent layers have been predicted in this article using a hybrid technique. The structural static responses are computed numerically via the isoparametric finite element steps in association with Reddy's higher order mid-plane theory. The final stacking sequences of individual layers are further predicted through two types of soft computing techniques (particle swarm optimization, PSO; teaching-learning-based optimization, TLBO). The responses (deflection and optimal angle) are obtained via a customized computer code (MATLAB) using the current mathematical model in association with two different optimization algorithms. The accuracy of the currently derived higher order hybrid model is established by conducting a few numerical experimentations. The study indicates the superiority of TLBO technique over PSO for any particular problem when compared to the minimum deflection constraint whereas not many deviations for stacking sequences. Finally, the influences of the different structural parameter are explored by solving a variety of numerical examples and the corresponding inferences provided in detail.