Title of the subject: Theory of engineering experiment
Semester_of_study (WT – winter/ST – summer): WT
Learning outcomes: Students will acquire knowledge of the theory of engineering experiments, the skills and practical experience of experimental methods focused mainly on the analysis of stress, deformation and parameters of dynamic processes, indirectly also to quantify of other physical quantities. Furthermore, gain practical skills and habits in relation to the control of individual measurement devices and systems and in connection with the evaluation of measurement data.
Brief content of course: Lecture Topics: 1. Stages of experiments. The role of the experiment in solving models in engineering experimental modeling. 2. Fundamentals of the experiments. Types of experiments. 3. Experiment in experimental mechanics. Theory of experiment. 4. Theory of measuring methods. Measurement theory. 5. Problems and methods for deformations and stresses on the surface of bodies. Mechanical strain gauges. 6. Air strain gauges, acoustic and electric strain gauges. 7. Types, properties and special connection methods of electrical resistance strain gages. 8. The effect of the adverse impact resistance tensometry with emphasis on the impact of temperature change. Special strain gauges for specific use. 9. Determination of stress from the measured deformation for a typical sensor arrangement (cross rosette). 10. Photoelasticimetry. Use of polarized light and temporary birefringence of light in fotoelasticimetry. 11. Spatial photoelasticimetry. Reflection photoelasticity. 12. The method of fragile coatings. Moiré method. Holography. 13. Methods for analysis and measurement of vibration. Topics of practices: 1. Examples of applications of experimental methods in practice. 2. Preparation of measurement sites and applications of strain gauges. 3. Preparation of draft-labs. 4. Documentation of laboratory tasks. 5. Individual applications of sensors and means for connection to the meter. 6. Implementation of experimental measurements. 7. Evaluation of measurements and the whole experiment. 8. Processing Report. 9. Proposal of physical quantity converter. 10. Measurement photoelasticimetry for continuous light. 11. Measurement photoelasticimetry the reflected light. 12. Work with samples and systems for analysis of residual stresses. 13. Examples of measuring systems for the measurement and analysis of vibration.
Literature: 1. Kurtz, M.: Mechanical Engineers´ Handbook - Materials and Engineering Mechanics. John Wiley and Sons, 2015 2. Webster, J.G., Eren H.: Measurement, Instrumentation and Sensors Handbook. Taylor and Francis Group, 2014 3. Kobayashi, A., S.: Handbook on Experimental Mechanics. SEM VCH, New York, 1993. 4. Sharpe, W., N. Jr. (editor): Springer Handbook of Experimental Solid Mechanics. Springer Science+Business Media, LLC, New York, 2008. 5. Hoffmann, K.: An Introduction to Stress Analysis Transducer Design using Strain Gauges. HBM, 2012 6. Trebuňa, F., Šimčák, F.: Príručka experimentálnej mechaniky. TypoPress. Košice, 2007. 7. Trebuňa, F., Sivák, P.: Teória inžinierskeho experimentu. TU SjF, Košice, 2012. 8. Trebuňa, F., Sivák, P.: Experimentálne metódy mechaniky. TU SjF, Košice, 2012. 9. Trebuňa, F., Pástor., M., Huňady, R., Frankovský, P., Hagara, M.: Optické metódy v mechanike. TypoPress. Košice, 2017.