Evaluation on Interface Fracture Behavior of HVAS Coating/Substrate System Based on Weibull Stress Criterion
In this paper, the local approach was used to analyze the geometry dependence of coating specimens for interface brittle fracture initiation, and a definition of the fracture process zone was proposed in the paper. The results showed that the interface fracture behavior of two types of specimens with notch had been predicted from the test results of pre-crack specimens based on the local approach for interface brittle fracture, and the predicted distribution of the critical load for the notched specimens gave a good agreement with the test results. It indicated that the local approach not only can be used to describe the interface fracture behavior, but also can be used in the integrity evaluation for interface between different materials.
Wei Yang, Mamtimin Geni, Tiejun Wang and Zhuo Zhuang
L. Y. Xu et al., "Evaluation on Interface Fracture Behavior of HVAS Coating/Substrate System Based on Weibull Stress Criterion", Advanced Materials Research, Vols. 33-37, pp. 301-306, 2008