Steel and Composite Structures
Volume 13, Number 2, 2012, pages 187-206
DOI: 10.12989/scs.2012.13.2.187
Numerical analysis of center cracked orthotropic fgm plate: Crack and material axes differ by θ°
Mete Onur Kaman and Fatih Cetisli*
Abstract
In this study, fracture analysis of orthotropic FGM (Functionally Graded Material) plate having center crack is performed, numerically. Material axis arbitrarily oriented and there is an angle <i>θ</i>° between material and crack axes. Stress intensity factors at the crack tips for Mode I are calculated using <i> Displacement Correlation Method</i> (DCM). In numerical analysis, effects of material properties and variation of angle <i>θ</i>° between material and crack axes on the fracture behavior are investigated for four different boundary conditions. Consequently, it is found that the effect of <i>θ</i>° on stress intensity factor depends on variation of material properties.
Key Words
orthotropic functionally graded materials; displacement correlation method; finite element analysis; stress intensity factor; aerospace structures
Address
Mete Onur Kaman : Firat University, Department of Mechanical Engineering, Elazig, Turkey
Fatih Cetisli : Firat University, Department of Civil Engineering, Elazig, Turkey