INNOVATIVE MATERIALS FOR DESIGN

Academic year and teacher
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Versione italiana
Academic year
2020/2021
Teacher
VALENTINA MAZZANTI
Credits
6
Didactic period
Secondo Semestre
SSD
ING-IND/22

Training objectives

Provide basic skills regarding the choice of materials, the design and the main transformation technologies of polymeric and composite materials

Prerequisites

No pre-requisites necessary

Course programme

Composite materials: definition. Classification. Semi-finished products. Advantages and disadvantages of composite materials
Fibers and matrices: carbon, glass and aramid fibers. Epoxy and polyester polymeric matrices. Metallic matrices. Ceramic matrices
Composites as anisotropic materials: mechanical properties. Elastic modules, cutting modules and Poisson's coefficients. Mechanical resistance.
Unidirectional sheet micromechanics. Rule of mixtures in series and parallel for the determination of the modules. Estimation of tensile strength in longitudinal and transverse direction. Failure phenomena Composite technology. Manual impregnation, layering of prepregs and autoclave care, compression molding, pultrusion, winding, resin transfer molding (RTM).

Polymeric materials: Advantages and disadvantages of plastics. Definition. Structure. Classifications: thermoplastic and thermosetting, amorphous and semicrystalline. Main polymers and special polymers. Additives and compounding. Thermoplastic polymer transformation technologies: extrusion, injection molding. Design for manufacturing. Jointing and assembly elements. Moldflow (Simulation software for injection molding)

Exercises:
Design of a product using a composite material of those described in the course
Design of an object in polymeric material and simulation of its injection molding with Moldflow software

Teaching methods
Classroom lessons. The topics of the course are presented through a power point presentation. The theoretical parts of the course are always followed by applications to a specific case.

Didactic methods

Lectures recorded on classroom platform, weekly question times and case studies in streaming.
The topics of the course are presented through a power point presentation. The theoretical parts of the course are always followed by applications to specific case studies.

Learning assessment procedures

The exam is aimed at verifying the level of achievement of the training objectives of the course. In particular, the exam consists of:
1. Brief interview about projects based on classroom exercises
2. Oral exam on the topics presented during the course

The exam is passed if both phases are considered positive

Reference texts

Bibliography

-Course notes

-Materiali per il Design – Introduzione ai materiali e alle loro proprietà. A cura di B. Del Curto e C. Marano. Casa Editrice Ambrosiana. ISBN 978-88-08-18400-9

- Materiali compositi, I. Crivelli Visconti, Edizione Hoepli