Simulation and Modelling of Plastic Deformation Processes - a.y. 2016/2017
Period (Year/Semester): I/I
Required/expected prior knowledge: Nothing
Lecturers: Antonio Langella
The course aims to provide: tools and methods for modeling the plastic behavior of metallic materials as well as tools for studying with analytical methods and numerical methods of machining for plastic deformation of metals.
Tables of contents:
Basic concepts of the plasticity theory of metals: plastic behavior of materials (micro and macroscopic aspects), influence of processing parameters (temperature and velocity of deformation), plasticity criteria, elastic - plastic and plastic behaviour, stress-strain relations, energy theorems.
Traditional plastic deformation processes. Laminating processes. Wire and tube drawing. Direct and reverse extrusion. Economic aspects, equipment, defects. Analytical relationships for calculating forces and work.Massive molding and forging: machines (hammer and presses) and equipment, economic aspects, equipment. Defects in molding and forging operations. Analytical relationships for force calculation and molding work.
Non-traditional plastic deformation processes. Idroforming, incremental forming. Superplasticity and superplastic materials. Processing with superplastic materials, machining for high speed plastic deformation.
Use of numerical techniques in FEM finite elements in the elastic-plastic field: material modeling, use of specific software in the study of plastic deformation processes for massive machining and sheet metal processing.
Exercises with FEM softwares.
Textbooks and learning aids:
K. Lange, Handbook of Metal forming, SME Editore
Reference Guide, Training Guide Marc Mentat
Assessment will be oral. Assessment of the use of the softwares used during the course with a project.