%0 Journal Article %T Analytical Approach to Free Vibrations of Cracked Timoshenko Beams Made of Functionally Graded Materials %A Zabihi Ferezghi, Hamid %A Tahani, Masoud %A Ekhteraei Toussi, Hamid %J Mechanics of Advanced Materials and Structures %@ 1537-6494 %D 2010