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Course detail
FSI-HPTAcad. year: 2023/2024
The course acquaints students with the possibilities of computer aid in various areas of manufacturing design, especially with the use of 3D optical measurement and numerical simulation as tools for analysis and optimization of technological processes. In the lectures, students are introduced to the nature of the use of computer aid and numerical simulations for solving stress-strain and temperature problems, which are closely related to the issues of forming and welding technologies. Exercises aim primarily at practical calculations and mastering the main principles of computational models creating. Therefore, students will gain an orientation in the field of numerical simulations and analyses using the finite element method.
Language of instruction
Number of ECTS credits
Mode of study
Guarantor
Department
Entry knowledge
Rules for evaluation and completion of the course
The course-unit credit is awarded on condition of having attended all seminars and worked out partial tasks. The final exam will be composed of written and oral part. It is classificated by using the ECTS grading scale.
Attendance in lectures is recommended. Attendance in exercises is compulsory. The attendance to the seminar is regularly checked and the participation in the lesson is recorded. In case, that the lesson does not possible to participate, the teacher may in justified cases set an additional assignment.
Aims
Aim of the course is to acquaint students with the possibilities of experimental and theoretical evaluation of production processes using computer aid and with basics of work in particular areas of this problematics. The students will have a view of what they can expect from computer aid results in practice. The course also aims to acquire the skills necessary to basic work with simulation software in these areas.
Students will be acquainted with theory as well as with the latest knowledge in the field of 3D optical measurement, virtual manufacturing and numerical simulations. They will acquire necessary skills for formulation and solution of computational models in the areas of forming and welding.
Study aids
Prerequisites and corequisites
Basic literature
Recommended reading
eLearning
Classification of course in study plans
specialization STG , 1. year of study, winter semester, compulsoryspecialization STM , 1. year of study, winter semester, compulsoryspecialization MTS , 1. year of study, winter semester, compulsory
Lecture
Teacher / Lecturer
Syllabus
1. Possibilities of modelling of forming processes (similarity, experimental and theoretical modelling) 2. Experimental modelling with computer aid (experimental modelling using 3D optical systems; basics of photogrammetry and stereoscopy) 3. Possibilities of numerical modelling (basic principle of numerical modelling; 0D, 1D, 2D and 3D simulations, basic stages of work with simulation software) 4. Finite element method (basic principle; illustration of FEM algorithm for strain-stress problem; FEM equations) 5. Nonlinear FEM problems (geometric, contact and material nonlinearity; solution algorithms) 6. FEM mesh (basic types of body elements; special types of FEM elements, evaluation of mesh quality) 7. Material models in FEM (description of hardening curve; tests of mechanical properties; elastic plastic and hyperelastic models) 8. Numerical simulation of hot forming (description of heat transfer; heat transfer coefficient; thermal conductivity; change of mechanical properties) 9. Numerical simulation of forming at higher strain rates (change of mechanical properties of materials; implicit/explicit approaches to solutions; examples of applications) 10. Modelling of formed material failure (physical and virtual failure models) 11. Numerical simulation of welding (goals of numerical analyses of welding, welding simulation in FEM) 12. Simulation of thermal processes (basic quantities for the description of heat transfer; simulation of thermal action on the material) 13. Application of numerical modelling in the manufacturing process (practical applications)
Computer-assisted exercise