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. Load spectra analysis: exceedence and occurrence diagrams. The rain flow method.
Tubes and pressure vessel with thick wall: main formulas for stress and strain under pressure and thermal loads. Radial ,hoop and axial stress. Stress effects due to end constraints for a cylindrical tube.



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
Antonio Gugliotta
Introduzione alla Meccanica della Frattura lineare elastica
Ed. Levrotto & Bella – Torino
Laura Vergani
Meccanica dei materiali
McGraw Hill – Milano

Appunti dalle lezioni del Prof. D. Amodio
Appunti dalle lezioni del Prof. G. Santucci

Exam :

oral test

Tutorial Session :

Wednesday, Thursday 17.30 – 19.30