Equivalent Stress Analysis of Functionally Graded Rectangular Plates by Genetic Programming

Year 2018, Volume: 2 Issue: 1, 67 - 80, 30.06.2018

Munise Didem Demirbaş , Didem Çakır Sibel Arslan , Celal Öztürk

Abstract

In this study, the sets of equation were extracted by
Genetic Programming (GP) for thermal stress analysis of one-dimensional functionally
graded rectangular plates. First, thermal stress analyses were performed using
a finite difference method for a sufficient number of compositional gradient
exponents. Then, equation sets were obtained by the GP using the maximum and
minimum equivalent stress levels obtained from these analyses. Appropriate
models are produced for equivalent stress levels at compositional gradient
exponents. The models achieved these levels 100 times faster than the finite
difference method by using GP. GP provided significant time gain in deriving
sets of equations for thermal stress analysis of plates with current boundary
conditions.

Keywords

Functionally graded plates, genetic programming, finite difference methods, thermal stress analysis

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