Eventos Anais de eventos
MECSOL 2022
8th International Symposium on Solid Mechanics
An application for structural reliability based on probabilistic condition
Submission Author:
Cádmo Rodrigues , MG
Co-Authors:
Cádmo Rodrigues, Fernando Teixeira, Jánes Landre Júnior
Presenter: Cádmo Rodrigues
doi://10.26678/ABCM.MECSOL2022.MSL22-0206
Abstract
The study of structural reliability has taken on great importance as numerical tools, whether in the probabilistic or deterministic field, become more assertive. However, the use in a complementary and interactive way has not been observed. In this context, the present work seeks to propose a virtual numerical simulation that uses information from the two aforementioned areas aiming at the evaluation of the probabilistic condition of an asset, extrapolating the grounded concept of Condition-based maintenance (CBM), incorporating as an extension of the concept the knowledge from probabilistic studies. Therefore, there will be Probabilistic Condition-based maintenance (PCBM). Using the concepts of structural reliability and its methods for evaluating the structural integrity of a mechanical system in operation subjected to dynamic forces, the probability of component failure will be determined, as well as its safety index and its evolution over time. of time. For this, a software with graphical user interface (GUI) is developed, in MATLAB, to ease the use by the designer. In this, the user can also perform comparative analyzes between different simulation loops as well as choose which types of statistical models to implement. The validation of the software is based on experimental results where the correlations between the probabilistic and deterministic models are carried out, thus verifying the possibility of using this methodology as a support in the decision-making process regarding the most appropriate moment of maintenance intervention for a certain level of security.
Keywords
Structural Reliability, fatigue, Structural Health Monitoring, maintenance, Structural Health Monitoring (SHM)
