PTEE Material Life Modeling based on Compound Poisson Process of Fatigue Crack
- DOI
- 10.2991/mecae-17.2017.46How to use a DOI?
- Keywords
- Compound Poisson Process, Reliability Modeling, Cumulative Damage, Fatigue Crack.
- Abstract
In order to study the life modeling problem of the PTEE material, this paper proposes a Compound Poisson process life modeling method for PTEE material, which performance degradation process is modeled by the PTEE material impact fatigue crack. In the impact work condition, the number of impact times of the material obeys the Poisson process and the damage caused by each impact has a cumulative effect. By using fatigue cumulative damage theory, we can obtain the Compound Poisson process model. Then, the parameters point estimation of Compound Poisson process model are evaluated by using moment estimation method combined with least- square principle method and we utilize fatigue crack data of FTEE material to evaluate the life of PTEE material. A case study on PTEE sealing material for a ship gas turbine generator with reliability degradation testing is used to demonstrate the accuracy and effectiveness of the proposed method. This method solves the problem of material life modeling and evaluation of fatigue crack due to impact characteristics. It can be used as a reference for the reliability evaluation of the similar material products.
- Copyright
- © 2017, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Longbo Liu AU - Shuizhuang Miao PY - 2017/03 DA - 2017/03 TI - PTEE Material Life Modeling based on Compound Poisson Process of Fatigue Crack BT - Proceedings of the 2017 International Conference on Mechanical, Electronic, Control and Automation Engineering (MECAE 2017) PB - Atlantis Press SP - 245 EP - 249 SN - 2352-5401 UR - https://doi.org/10.2991/mecae-17.2017.46 DO - 10.2991/mecae-17.2017.46 ID - Liu2017/03 ER -