Step-stress analysis for predicting dental ceramic reliability

Stress analysis of all-ceramic three-unit dental bridges ‌using finite element method

Stress analysis of all-ceramic three-unit dental bridges ‌using finite element method M.F. Biria *- Dr. F. Farahmand** - Dr. Gh. Eslami Amirabadi*** *- M.S in Biomechanics Engineering Faculty of Mechanics. Sharif Industrial University. ** - Associate professor of Mecanical Engineering Dept. Sharif Industrial University. *** - Assistant professor of Orthodontics Dept. Faculty of Dentistry Shahed...

Reliability and properties of core materials for all-ceramic dental restorations

Design and Analysis of Step Stress Accelerated Life Tests for Censored Data}

Life testing often is consuming a very long time for testing. Therefore, the engineers and statisticians are looking for some approaches to reduce the running time. There is a recommended method for reducing the time of failure, such that the stress level of the test units will increase, and then they will fail earlier than normal operating conditions. These approaches are called accelerated li...

Thermal Stress Analysis of Ceramic Pellets for Catalysis

One of the most critical phenomena that limits the lifetime of ceramic catalysts for H2O2 decomposition is represented by substrate break-up as a consequence of thermal shocking. In a recent experimental campaign conducted by Alta S.p.A., Pisa, Italy, fracture of the ceramic support occurred in a Pt/γ–Al2O3 catalytic bed. Because of the catalyst rupture, the onset of a number of flow instabilit...

Reliability Estimation based on Step-Stress Accelerated Degradation Testing by Unequal Interval Time Series Analysis

This paper proposes a reliability estimation method based on Step-Stress Accelerated Degradation Testing (SSADT) data analysis using unequal interval time series analysis. A MultiRegression Time Varying Auto-Regressive (MRTVAR) degradation time series model is proposed. Product SSADT data are treated as unequal interval composite time series and described using MRTVAR time series model and util...