Print Email Facebook Twitter Lifetime Modeling of Thermal Barrier Coatings Title Lifetime Modeling of Thermal Barrier Coatings Author Hille, T.S. Contributor De Borst, R. (promotor) Turteltaub, S.R. (promotor) Faculty Aerospace Engineering Department Mechanics, Aerospace Structures and Materials Date 2009-05-08 Abstract Thermal barrier coatings (TBCs) are applied in gas turbines to enhance their thermal efficiency by isolating the metallic components from the aggressive hot gas. TBC lifetime is limited by damage processes originating at internal interfaces, which may ultimately lead to delamination and spallation. In the present thesis constitutive models are presented for the coating components and the most detrimental failure mechanisms. To simulate the thermomechanical failure response, the numerical models are applied to boundary value problems representative of conditions typically encountered during service and/or experiments. Based on the results, recommendations are given for TBC manufacturing. Subject thermal barrier coatingslifetime modelingcohesive zone lawfracture mechanicspartition of unity method To reference this document use: http://resolver.tudelft.nl/uuid:1315d027-75d2-4355-9e5e-c60a61e255e3 ISBN 978-90-771-7243-8 Part of collection Institutional Repository Document type doctoral thesis Files PDF hille_20090508.pdf 6.89 MB Close viewer /islandora/object/uuid:1315d027-75d2-4355-9e5e-c60a61e255e3/datastream/OBJ/view