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Steel and Composite Structures
  Volume 50, Number 1, January 10 2024 , pages 77-87
DOI: https://doi.org/10.12989/scs.2024.50.1.077
 


Research of the crack problem of a functionally graded layer
Murat Yaylacl, Ecren Uzun Yaylacl, Muhittin Turan, Mehmet Emin Ozdemir, Şevval Ozturk and Sevil Ay

 
Abstract
    In this study, the two-dimensional crack problem was investigated by using the finite element method (FEM)- based ANSYS package program and the artificial neural network (ANN)-based multilayer perceptron (MLP) method. For this purpose, a half-infinite functionally graded (FG) layer with a crack pressed through two rigid blocks was analyzed using FEM and ANN. Mass forces and friction were neglected in the solution. To control the validity of the crack problem model exercised, the acquired results were compared with a study in the literature. In addition, FEM and ANN results were checked using Root Mean Square Error (RMSE) and coefficient of determination (R2 ), and a well agreement was found. Numerical solutions were made considering different geometric parameters and material properties. The stress intensity factor (SIF) was examined for these values, and the results were presented. Consequently, it is concluded that the considered non-dimensional quantities have a noteworthy influence on the SIF. Also FEM and ANN can be logical alternative methods to time-consuming analytical solutions if used correctly.
 
Key Words
    artificial neural network; finite element method; fracture mechanics; functionally graded layer; stress intensity factor
 
Address
Murat Yaylacl and Şevval Ozturk:Department of Civil Engineering, Recep Tayyip Erdogan University, 53100, Rize, Turkey

Ecren Uzun Yaylacl:Faculty of Engineering and Architecture, Recep Tayyip Erdogan University, 53100, Rize, Turkey

Muhittin Turan:Department of Civil Engineering, Bayburt University, 69010, Bayburt, Turkey

Mehmet Emin Ozdemir:Department of Civil Engineering, Cankiri Karatekin University, 18100, Çanklrl, Turkey

Sevil Ay:Department of Civil Engineering, Artvin Coruh University, 08100, Artvin, Turkey
 

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