Identification of factors governing mechanical properties of TRIP-aided steel using genetic algorithms and neural networks

S Datta, Frank Pettersson, S Ganguly, Henrik Saxén, N Chakraborti

Research output: Contribution to journalArticleScientificpeer-review

36 Citations (Scopus)


Mechanical properties of transformation induced plasticity (TRIP)-aided multiphase steels are modeled by neural networks using two methods of reducing the network connectivity, viz. a pruning algorithm and a predator prey algorithm, to gain understanding on the impact of steel composition and treatment. The pruning algorithm gradually reduces the complexity of the lower layer of connections, removing less significant connections. In the predator prey algorithm, a genetic algorithm based multi-objective optimization technique evolves neural networks on a Pareto front, simultaneously minimizing training error and network size. The results show that the techniques find parsimonious models and, furthermore, extract useful knowledge from the data.
Original languageUndefined/Unknown
Pages (from-to)130–137
Number of pages8
JournalMaterials and Manufacturing Processes
Issue number2
Publication statusPublished - 2008
MoE publication typeA1 Journal article-refereed


  • alloy design
  • evolutionary algorithms
  • genetic algorithms
  • multi-objective optimization
  • neural network
  • predator-prey
  • pruning algorithm
  • TRIP-aided steel

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