Fatigue Damage Prediction as a Part of Technical Systems Reliability Assessment

Abstract:

Material fatigue of different technical systems parts belongs to the most frequent causes of boundary states occurrence and relating operation breakdowns. An extraordinary attention is dedicated to the prediction of fatigue damage processes in structures elements all over the world because breakdowns, caused by a fatigue failure, have often a character of catastrophe. There should be a dominant effort to bring conditions of calculation or experimental measures near to the working conditions in which the investigated system is exploited. A modern way of calculation of any technical systems (e.g. large mechanical or civil structures) therefore demands to respect dynamic and stochastic nature of all influencing working factors and related working loads. The main reason for it is prevention from their working breakdowns. The objective of the paper is general formulation of reliability of technical systems assessment, brief characteristic of basic areas to be taken into account as input into calculated prediction of technical systems fatigue damage level and analysis of risk items by its practical application in real operating conditions.

• Periodical: Key Engineering Materials (Volume 755)
• Pages: 131-138
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.755.131
• Online since: September 2017
• Authors: Bohuš Leitner*, Mária Lusková, Zdeněk Dvořák, Eva Sventekova
• Keywords: Fatigue Damage Cumulating Process, Fatigue Failure, Fatigue Life, Operational Conditions, Reliability, Safety, Technical System

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