A new approach for estimation of rock brittleness based on non-destructive tests

Mohammadreza Koopialipoor, Amin Noorbakhsh, Ebrahim Noroozi Ghaleini, Danial Jahed Armaghani, Saffet Yagiz

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

This paper aims to propose predictive equations for estimation of rock brittleness as a function of intact rock properties including rock density (r), Schmidt hammer (Rn) and wave velocity (Vp) using two optimization techniques, artificial neural network (ANN) and FA-ANN (Firefly Algorithm and ANN). Using ANN and FA-ANN techniques, 10 different models were developed and compared to find the optimum one implementing some performance indices such as coefficient of determination (R2) and root mean square error (RMSE). In addition, a ranking system was performed to select the best models. It was found that in developing ANN models, the Model number 1 is superior to other 4 models (models 2-5). Likewise, in developing hybrid FA-ANN technique, model number 9 was better than other 4 models (models 6-10). Further, the best models obtained with these two intelligent techniques were compared to show that hybrid model is better than a simple ANN model. It was found that R2, RMSE, and total ranking are obtained as 0.826, 0.1481, and 19 for ANN while those are 0.896, 0.0812 and 36 for FA-ANN, respectively. It was also concluded that the model 9 of FA-ANN technique indicates the best performance among all developed hybrid models.

Original languageEnglish
JournalNondestructive Testing and Evaluation
DOIs
Publication statusPublished - Aug 1 2019

Fingerprint

nondestructive tests
brittleness
Brittleness
Rocks
rocks
fireflies
Neural networks
ranking
root-mean-square errors
Mean square error
hammers
Hammers

Keywords

  • ANN
  • Brittleness Index
  • FA-ANN
  • non-destructive tests

ASJC Scopus subject areas

  • Mechanics of Materials
  • Materials Science(all)

Cite this

A new approach for estimation of rock brittleness based on non-destructive tests. / Koopialipoor, Mohammadreza; Noorbakhsh, Amin; Noroozi Ghaleini, Ebrahim; Jahed Armaghani, Danial; Yagiz, Saffet.

In: Nondestructive Testing and Evaluation, 01.08.2019.

Research output: Contribution to journalArticle

Koopialipoor, Mohammadreza ; Noorbakhsh, Amin ; Noroozi Ghaleini, Ebrahim ; Jahed Armaghani, Danial ; Yagiz, Saffet. / A new approach for estimation of rock brittleness based on non-destructive tests. In: Nondestructive Testing and Evaluation. 2019.
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