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Multiple Surface Cracking and Its Effect on Interface Cracks in Functionally Graded Thermal Barrier Coatings Under Thermal Shock
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The thermal fracture behavior in functionally graded yttria stabilized zirconia–NiCoCrAlY bond coat alloy thermal barrier coatings was studied using analytical models. The response of three coating ...
Transient Thermal Load Effects on Coatings Bonded to Cylindrical Substrates and Containing Circumferential Cracks
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The effect of a transient thermal load on a coating which is bonded to a cylindrical substrate is analyzed using fracture mechanics by considering the presence of a circumferential edge crack ...
Thermal Stresses Under Engine Heat Flux—Part 2: Thin Metallic Films on Ceramic Coatings
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The thermal stresses in a metallic thin film bonded to a ceramic coating on a metal substrate, generated by heat flux conditions in an engine, were studied. The film yields as a result of ...
Thermal Stresses Under Engine Heat Flux—Part 1: Ceramic Coating on Metal Substrate
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The thermal stresses in a ceramic coating bonded to a metal substrate generated by heat flux conditions in an engine were studied. Edge delamination of the coating was related to the displacements ...
Architecture of Functionally Graded Ceramic Coatings Against Surface Thermal Fracture
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An analytical study was performed to study the effect of architecture on the initiation of surface cracking in multilayer ceramic coatings. Two modes of crack initiation were considered: 1) ...
Thermal Fracture of Multilayer Ceramic Thermal Barrier Coatings
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Controlled experiments and a corresponding analytical model were developed to investigate the reasons for crack initiation in multilayer ceramic thermal barrier coatings. The experiments and model ...
The Mechanics of the Interface Crack Using the Finite Element Method
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The interface crack between two dissimilar materials subjected to a tension load was analyzed using the finite element method in order to study the “open” and “closed” crack tip formulations ...
The Cylindrical Crack
Publisher: The American Society of Mechanical Engineers (ASME)