Dec 9, 2019   4:50 p.m. Izabela
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Ing. Martin Garan, PhD.
Identification number: 10008
University e-mail: martin.garan [at] stuba.sk
 
Odborný asistent CSc.,PhD. - Institute of applied mechanics and mechatronics (FME)

Contacts     Graduate     Lesson     Final thesis     Supervised theses     Conferences     

Basic information

Basic information about a final thesis

Type of thesis: Dissertation thesis
Thesis title:MONITORING OF FATIGUE DAMAGE BY SENSING THE DEFORMATION STATE
Written by (author): Ing. Martin Garan, PhD.
Department: Institute of applied mechanics and mechatronics (FME)
Thesis supervisor: prof. Ing. Ladislav Starek, CSc.
Opponent 1:prof. Ing. Juraj Bukoveczky, CSc.
Opponent 2:Ing. Vladimír Kliman, DrSc.
Opponent 3:prof. Ing. Matej Bílý, DrSc.
Final thesis progress:Final thesis was successfully defended.


Additional information

Additional information about the final thesis follows. Click on the language link to display the information in the desired language.

Language of final thesis:English

Slovak        English

Title of the thesis:MONITORING OF FATIGUE DAMAGE BY SENSING THE DEFORMATION STATE
Summary:The third degree thesis is oriented into domain of fatigue damage monitoring by sensing the deformation state. In accordance with thesis of the work, the work contains quite detail study of fatigue damage monitoring system design of cyclic stressed structures and means with according to increase reliability and safety of the operations. Within this thesis was proposed the methodology of remote on-line fatigue damage monitoring with respect the sensing deformation state in the critical points of the structure. In work are schematic described individual parts of hardware accessories in detail, the main emphasis are put on the software part of monitoring system. Most of the work is devoted to a description of processing the measured loading sequences in the critical points of structure. Based on the described processing algorithms in the Microsoft Visual Studio .NET was developed monitoring software called "FatigueLab" which performs the management function of the monitoring process. Since the proposed methodology for monitoring fatigue damage sensing of strain state in the critical parts requires according the hypothesis of fatigue damage accumulation to know process of plastic strain to evaluate the value of damage, it was unnecessary in this thesis to solve the problem how to calculate the plastic strain eap from total measured strain eac without the knowing the correspondent force effect sa . This problem was in this thesis solved with transformation formula which was based on the material model of cyclic deflection curve. The proposed methodology allows in the monitoring process to calculate the plastic strain eap from the measured process of total strain eac without conversion to a stress state.
Key words:monitoring, fatigue damage, monitoring system

Current level of public release
 
access to digital copies of seminar papers and theses on-line via Internet after the lapse of 50 years from concluding this contract only to university users (access check based on computer's IP address or on login and password), incl. the right to provide sub-licence to a third person for study, scientific, educational and information purposes.


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Final thesis (final thesis appendices) unlimited
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