Abstract: Progress toward developing life models for simulating the behavior of thermal barrier coatings in aircraft gas turbine engines is discussed. A preliminary laboratory model is described as are ...

Abstract: Thermal barrier coating life models developed under the NASA Lewis Research Center’s Hot Section Technology (HOST) program are summarized. An initial laboratory model and three design-capable ...

Abstract: The tedious process of building an input model and of manual communication between CAD and Finite Element Analysis (FEA) significantly restricts the designers from using FEA, particularly in ...

Abstract: A destructive test was conducted on a decommissioned skew RC slab bridge. This bridge had severely deteriorated shoulder regions, where the top mat reinforcing bars were exposed. The test bridge was loaded using hydraulic ...

Abstract: Center‐notched mortar plate specimens are loaded in tension. A multiple sensitivity vector holographic setup is developed to record several deformation stages during the stable crack propagation range. The three‐sensitivity ...

Abstract: High cycle (>106 cycles) fatigue (HCF) behavior of thick thermal barrier coatings (TTBC’s) was examined for applied stresses near the compressive strength of the material. Test data were ...

Abstract: Applications of nonlinear finite element analysis (NLFEA) to complete structures have been limited. The study reported in this paper examined the reliability of NLFEA to assess strength and stiffness of a three‐span ...