| Course Unit Code | 636-3034/01 |
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| Number of ECTS Credits Allocated | 5 ECTS credits |
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| Type of Course Unit * | Compulsory |
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| Level of Course Unit * | Second Cycle |
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| Year of Study * | Second Year |
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| Semester when the Course Unit is delivered | Winter Semester |
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| Mode of Delivery | Face-to-face |
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| Language of Instruction | Czech |
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| Prerequisites and Co-Requisites | Course succeeds to compulsory courses of previous semester |
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| Name of Lecturer(s) | Personal ID | Name |
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| NEM37 | Ing. Ondřej Němec, Ph.D. |
| Summary |
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| The course deals with the main directions of NDT in the energy industry. Students will be acquainted with NDT methods for defect detection on the surface or under the surface as well as NDT methods for detection of in-volume defects, including advanced ultrasonic methods, i. e. (TOFD – Time of Flight Diffraction), Phased Array, Creep Wave, Guided Wave. In addition, attention is paid to methods of monitoring the defect growth (acoustic emission, potential method) and to NDT methods for monitoring the structure state, including assessment of structural changes due to creep. |
| Learning Outcomes of the Course Unit |
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| In this course students will be acquainted with the main methods of non-destructive control, which are used in energy industry. Students will be able to choose the appropriate NDT technique for the selected device, conditions of its loading, the operational history, etc. They will be able to evaluate results of the NDT analysis. They will be aware of the limits of the use of individual methods. They will know the directions of further development in the core areas of the NDT. |
| Course Contents |
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1. Introduction; the importance of non-destructive testing of materials and products in the energy industry; main sources of defects.
2. Classification of the main non-destructive (NDT) methods in energy industry from the point of view of the use potential; general principles for defect detecting by NDT methods.
3. Qualification and Certification of Personnel for the Implementation of NDT - Qualification Degrees according to ČSN EN ISO 9712, requirements for qualification of personnel according to ČSN EN ISO 9712, certification and recertification of workers; industrial sectors for NDT qualification.
4. Methods for detecting defects on the material surface and under the surface: Visual methods of testing - principle, procedure; Magnetic powder method - principle of the method, equipment, basic properties of magnetic powder, gauge, test procedure; Capillary testing and leakage methods - principle, test procedure; Eddy current test – principle and testing procedure.
5. Methods for measurement of the crack depth - potentiometric method, eddy current method, ultrasonic surface wave method, radiation method; Standards for non-destructive testing of surface defects.
6. Detection of volume defects by a radiographic method - physical principle of the method, radiation sources, radiation patterns, radiographic gauges; Digital radiography - direct and indirect digitization.
7. Ultrasonic methods for detecting volume defects - principles of methods, reflection methods, passage methods, types of probes, used frequencies.
8. Advanced ultrasonic methods - Time of Flight Diffraction (TOFD) ultrasonic method, Phased Array Ultrasonic Method, Creep Wave Ultrasonic Method, Guided wave ultrasound method; Standards for non-destructive testing of bulk defects in energy industry.
9. Methods for monitoring the defect growth: Acoustic emission - method principle, areas of acoustic emission utilization, interpretation of results; Potential method - principle of the deformation measurement method.
10. Non-destructive testing to determine the structure state: Hardness measurement by portable hardness testers - method principle, recommended measuring range; Structural analysis of the surface by imprint method –principle of the method, usage, limitations.
11. NDT methods for assessing the change in structure state due to creep: Potential drop method; Potentiometric method - analysis of structural state change from polarization curve change.
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| Recommended or Required Reading |
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| Required Reading: |
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BOOGAARD, J. and G. M. van DIJK, Eds. Non-destructive testing. Amsterdam: Elsevier, 1989. ISBN 978-0-444-87450-4.
OMAR, M. Non-destructive testing methods and new applications. Rijeka: InTech, 2012. ISBN 978-953-51-0108-6. |
NĚMEC, O. Nedestruktivní kontrola materiálů v energetice, Ostrava: VŠB–TU Ostrava, 2019.
KOPEC, B. Nedestruktivní zkoušení materiálů a konstrukcí: (nauka o materiálu IV). Brno: Akademické nakladatelství CERM, 2008. ISBN 978-80-7204-591-4.
BOOGAARD, J. and G. M. van DIJK, Eds. Non-destructive testing. Amsterdam: Elsevier, 1989. ISBN 978-0-444-87450-4.
OMAR, M. Non-destructive testing methods and new applications. Rijeka: InTech, 2012. ISBN 978-953-51-0108-6.
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| Recommended Reading: |
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| AQUIL, A. and L. J. BONDS, Eds. ASM Handbook Volume 17, Nondestructive Evaluation of Materials, Materials park, Ohio: ASM International, 2018. ISBN 978-1-62708-153-5. |
| ČSN EN ISO 9712 Nedestruktivní zkoušení – kvalifikace a certifikace pracovníků NDT, 2013. |
| Planned learning activities and teaching methods |
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| Lectures, Seminars, Tutorials, Experimental work in labs |
| Assesment methods and criteria |
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| Task Title | Task Type | Maximum Number of Points
(Act. for Subtasks) | Minimum Number of Points for Task Passing |
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| Credit and Examination | Credit and Examination | 100 (100) | 51 |
| Credit | Credit | 35 | 21 |
| Examination | Examination | 65 | 30 |