Journal Published Online: 27 March 2014
Volume 42, Issue 3

Remaining Life Assessment of Low-Pressure Turbine Rotor Using Monte Carlo Simulation



This paper presents the development of a fracture-mechanics-based probability analysis that can be used to estimate the remaining life of a low-pressure turbine with an unstable fracture in the rotor disk keyway. The analysis focuses on the stability of crack growth of a semi-elliptical flaw in the rotor disk keyway. The crack stability is judged on the basis of linear elastic fracture mechanics. Then the Monte Carlo technique is introduced to deal with several random variables. Based on the evaluation results, the probability of failure of observed crack indications can be determined. The inspection interval could be justified.

Author Information

Young, Lih-jier
Dept. of Applied Statistics, Chung-Hua Univ., Hsin-Chu, TW
Yeh, Bo-Han
Ph.D. Program of Technology Management, Chung-Hua Univ., Hsin-Chu, TW
Young, Phansia
Project Plan Dept., Engineering Service Division, Edge-Core Networks, Hsin-Chu, TW
Pages: 10
Price: $25.00
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Stock #: JTE20130016
ISSN: 0090-3973
DOI: 10.1520/JTE20130016