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Optimization of finite element model of laser forming in circular path using genetic algorithms and ANFIS

Abstract

Determining suitable mesh density for complicated finite element analysis, e.g., laser forming process, has always been the main concern of analytical engineers because of its high computation time and costs. Few works addressed the application of optimization methods for finite element analysis of linear path laser scan; however, no study has yet considered optimum finite element analysis of circular path laser forming. The main objective of this article is to develop a method for determining optimum mesh density to estimate the deflection caused by laser beam circular path scan considering analysis time and forming accuracy. Optimum ranges of mesh densities are investigated first and then a deflection estimating process based on adaptive-network-based fuzzy inference system has been introduced. The proposed model was finally optimized using genetic algorithm considering accuracy and time. The numerical analysis results were finally confirmed by the conducted experimental results.

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Correspondence to Rasoul Tarkesh Esfahani.

Additional information

Communicated by V. Loia.

Appendix: Results of experiments for determining acceptable ranges

Appendix: Results of experiments for determining acceptable ranges

See Tables 9, 10 and 11.

Table 9 The effect of number of elements in thickness
Table 10 The effect of the number of elements in length
Table 11 The effect of band width (width of element) on deflection

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Tarkesh Esfahani, R., Golabi, S. & Zojaji, Z. Optimization of finite element model of laser forming in circular path using genetic algorithms and ANFIS. Soft Comput 20, 2031–2045 (2016). https://doi.org/10.1007/s00500-015-1622-8

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  • DOI: https://doi.org/10.1007/s00500-015-1622-8

Keywords

  • Laser forming
  • Circular path
  • Finite element modeling
  • ANFIS
  • Genetic algorithm