Lecturer: Fabio Carli  

Course name: Biomechanics Laboratory
Course code: 503309
Degree course: Bioingegneria
Disciplinary field of science: ING-IND/34
University credits: ECTS 6
Course website: n.d.

Specific course objectives

Assimilation of basic concepts related to the foundations of continuum mechanics for general 3D elastic solids and elementary mechanics of deformable one-dimensional structures. Acquisition of operational capabilities necessary to solve statically determinate and indeterminate beams of basic type using different solution approaches. Capability to apply some basic techniques common to industrial measurements for the mechanical characterization of conventional materials and biological materials.

Course programme

LECTURES - Stress state. The stress tensor: recall and physical meaning. Strain state. Finite deformation tensor and small deformation tensor: formulation, relevance and physical meaning. Constitutive law. Stress-strain relations and experimental evidence. Elasticity, anelasticity, failure and time dependent phenomena. Elastic law and elastic constants. Elastic limit and yield criteria: failure and yield. The elastic problem. Position of the problem of De Saint Venant. Axial action and bending. Torsion. Shear: approximate treatment. Theory of beams. Kinematics and statics of the straight beam. Elastic-linear-isotropic law and formulation of the elastic problem. The elastic equation. Mohr approach. Elastic stability of equilibrium. The Euler beam. Mechanical measurements. Process measurement and treatment of experimental data. Sensors, transducers and signal conditioning. Mechanical and electrical transducers. Measurement of strain and stress. Strain gauges and the local strain tensor. Field measurements: photo-elasticity. Measurement of forces. Load cells and elements of design. Thermal measurements. Sensors and basic methods. PRACTICAL CLASS - Analytical solution methods and graphics solutions. Internal actions and assessment of the stress condition. Diagrams of internal actions. Basics for the solution of indeterminate systems. Elastic equation. Mohr's analogy. Evaluation of the stress state for simple cross-sections under combined internal actions. TESTING LABORATORY - Experimental tests, test report and test certificate. Experimental tests on samples of different materials metallic and non-metallic: test of standard samples and test on samples of reduced dimensions. Testing methodologies and approach to the configuration of the test apparatus.

Course entry requirements

Calculus 1, Physics 1, Mathematical Physics.

Course structure and teaching

Lectures (hours/year in lecture theatre): 36
Practical class (hours/year in lecture theatre): 18
Practicals / Workshops (hours/year in lecture theatre): 0

Suggested reading materials

Reference books for specific items will be indicated during the course.

Track of lectures.

Testing and exams

Oral exam.