italian version

Aims :

Acquisition of autonomic design capacities of machines and mechanical system even if high performances are required or heavy loads are applied.

Topics :

Elasto-plastic constitutive equations of materials. Low cycle fatigue: Manson-Coffin model, Morrow model. Low cycle fatigue with non zero mean strain. Creep behaviour of materials.
Application: turbin blades, thermal relaxation. Fracture mechanics: Griffith theory, stress theory. Fracture toughness. Stable crack propagation: Paris equation. Retardation effect: Wheleer model. Load spectra analysis: excedence and occurrence diagrams. The rain flow method.
3D structure elements. Design of axisimmetric structures: pipes, vessels, wheels, plates, shells.

Textbooks :

J. A. Collins
Failure of Materials in Mechanical Design
Ed. John Wiley & Sons

David Broek
The Practical use of Fracture Mechanics
Ed. Kluwer Academic Publishers

Laura Vergani
Meccanica dei materiali
McGraw Hill – Milano

Timoshenko – Plates and Shells

Exam :

Oral test.

Tutorial Session :

Wednesday 18.00 – 19.30.