Crack and Contact Problems in Graded Materials

This book, which is based on the Ph.D. dissertation
of Dr. Serkan Dag, presents methods of analysis for
the solutions of crack and contact problems in
functionally graded materials (FGMs). Among the
problems for which new analytical solution
procedures are presented are: mixed-mode surface
cracking in a graded medium, interaction of a
contact stress field with a surface crack and
coupled crack and contact problems in graded
materials. The first part of the book describes an
analytical approach based on the singular integral
equations for the analysis of a surface crack
located in a homogeneous medium that is loaded
through a sliding frictional rigid stamp. The change
in the singular behavior of the stress field due to
the interaction of the contact zone and the crack
mouth is also considered. The following chapters
present a new integral equations based technique
developed to calculate mixed-mode stress intensity
factors for a surface crack located in a graded
medium. The book concludes with a chapter that
details the integral equations based solution
methods for the analysis of coupled crack-contact
problems in graded materials.

Autorentext

Serkan Dag is an Associate Professor of Mechanical Engineering at the Middle East Technical University. His research interests include fracture mechanics of advanced materials. He is the author of numerous papers on fracture behavior of FGMs. Dr. Dag is recognized for his success in research with the METU Young Researcher Success Award.

Klappentext

This book, which is based on the Ph.D. dissertation of Dr. Serkan Dag, presents methods of analysis for the solutions of crack and contact problems in functionally graded materials (FGMs). Among the problems for which new analytical solution procedures are presented are: mixed-mode surface cracking in a graded medium, interaction of a contact stress field with a surface crack and coupled crack and contact problems in graded materials. The first part of the book describes an analytical approach based on the singular integral equations for the analysis of a surface crack located in a homogeneous medium that is loaded through a sliding frictional rigid stamp. The change in the singular behavior of the stress field due to the interaction of the contact zone and the crack mouth is also considered. The following chapters present a new integral equations based technique developed to calculate mixed-mode stress intensity factors for a surface crack located in a graded medium. The book concludes with a chapter that details the integral equations based solution methods for the analysis of coupled crack-contact problems in graded materials.