Calculation of stress intensity factor by algebraic emulator based on statistical resultants of FRANC2D in rotary cracked disks

Abstract

The aim of this study is the determination of Stress Intensity Factor (SIF) and the crack growth behavior of a rotating disk with uniform thickness. The rotary disk with a central hole and radial crack has studied. Then, results of analysis of crack growth and effect of each effective parameters have been investigated at plane stress condition with a finite element analysis software (FRANC2D). Finally using obtained results from finite element method, we set out a mathematical emulator (a formula for determination of SIF) based on the statistical resultants that can predict crack behavior and stress intensity factor of a cracked rotating disk during crack growth for each model. © 2008 Asian Network for Scientific Information.