15640 - Structural Diagnostics

Course Unit Page


This teaching activity contributes to the achievement of the Sustainable Development Goals of the UN 2030 Agenda.

Industry, innovation and infrastructure

Academic Year 2018/2019

Learning outcomes

The first aim of this course is to present a complete review of the failure mechanisms of materials. A further aim is to introduce the main methods for experimental stress analysis and for non-destructive tests.

Course contents

Experimental stress analysis by strain gauges and photoelasticity.

Low-cycle fatigue: cyclic hardening or softening, the cyclic curve, the hysteresis curve.

Non-destructive test methods: Penetrant liquids, Magnetic particles, Eddy Currents, Ultrasound inspection.

Specific Lab exercitations on: strain gauges, photoelasticity, dye penetrants, magnetic particles, eddy currents and ultrasound inspection.


Handouts by the Professor.

A. Freddi, G. Olmi, L. Cristofolini, Experimental Stress Analysis for Materials and Structures. Stress Analysis Models for Developing Design Methodologies, Cham (ZG), Switzerland, Springer International Publishing, 2015.

Teaching methods

Explanations at the blackboard. Practical exercitations and training in the Lab.

Assessment methods

Student assessment is performed by a written test, consisting of three questions. They may have a theoretical or a practical content, with reference to the main Course topics.

Teaching tools


Practical training in the University Lab on: Strain gauges, Photoelasticity, Non-Destructive Control Techniques.

Office hours

See the website of Giorgio Olmi