First cycle
degree courses
Second cycle
degree courses
Single cycle
degree courses
School of Engineering
MATERIALS ENGINEERING
Course unit
MATERIALS SELECTION AND DESIGN
INP6075497, A.A. 2018/19

Information concerning the students who enrolled in A.Y. 2017/18

Information on the course unit
Degree course Second cycle degree in
MATERIALS ENGINEERING
IN0523, Degree course structure A.Y. 2014/15, A.Y. 2018/19
N0
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Number of ECTS credits allocated 6.0
Type of assessment Mark
Course unit English denomination MATERIALS SELECTION AND DESIGN
Website of the academic structure https://elearning.unipd.it/dii/course/view.php?id=767
Department of reference Department of Industrial Engineering
E-Learning website https://elearning.unipd.it/dii/course/view.php?idnumber=2018-IN0523-000ZZ-2017-INP6075497-N0
Mandatory attendance No
Language of instruction English
Branch PADOVA
Single Course unit The Course unit can be attended under the option Single Course unit attendance
Optional Course unit The Course unit can be chosen as Optional Course unit

Lecturers
Teacher in charge ENRICO BERNARDO ING-IND/22

ECTS: details
Type Scientific-Disciplinary Sector Credits allocated
Core courses ING-IND/22 Science and Technology of Materials 6.0

Course unit organization
Period Second semester
Year 2nd Year
Teaching method frontal

Type of hours Credits Teaching
hours
Hours of
Individual study
Shifts
Lecture 6.0 48 102.0 No turn

Calendar
Start of activities 25/02/2019
End of activities 14/06/2019

Examination board
Board From To Members of the board
2 A.A. 2018/19 01/10/2018 30/11/2019 BERNARDO ENRICO (Presidente)
COLOMBO PAOLO (Membro Effettivo)
BIASETTO LISA (Supplente)
BRUSATIN GIOVANNA (Supplente)
FRANCHIN GIORGIA (Supplente)
GUGLIELMI MASSIMO (Supplente)
MARTUCCI ALESSANDRO (Supplente)
1 A.A. 2017/18 01/10/2017 30/11/2018 BERNARDO ENRICO (Presidente)
COLOMBO PAOLO (Membro Effettivo)
GUGLIELMI MASSIMO (Supplente)

Syllabus
Prerequisites: The course includes basic knowledge of metallic, ceramic, polymeric and composite materials. It also presupposes knowledge of fundamentals of mechanics of solids and mechanical design.
Target skills and knowledge: In general, the course is aimed at providing the fundamentals of materials selection according to the multiple functionalities of a component, the geometric shape and the constraints of the production process. In its various articulations, the course is expected to lead to the following knowledge and skills:
- Materials selection
1. To be able to identify performance equations for components of general industrial use
2. To be able to separate, in the performance of a component, the contribution of the adopted material, according to its properties
3. To be able to identify, in the performance of a component, a series of "indices", or combinations of material properties to be optimized
4. To be able to identify quickly the most appropriate materials in a specific application, providing a classification and indicating advantages and disadvantages of each solution, by studying indexes and applying numerical and graphical algorithms,
- Materials design
5. To be able to recognize the synergy in mechanical performance between the geometric shape of components and material properties, identifying alternative but equally functional solutions
6. To be able to recognize the feasibility of the compensation of mechanical properties, by the control of the shape, in relation to the process
7. To be able to understand and apply combination strategies of different materials, for components with a functional profile not obtainable otherwise
- Materials selection according to the environment
8. To be able to understand and apply strategies for maximizing environmental sustainability, combining selection and design approaches
Examination methods: The verification of the expected knowledge is carried out through a written test and a "practical" test.

The written exam consists of 9 questions, on the whole program of the course. The 9 questions consist of open-ended questions and exercises, with answer placed within predetermined spaces, as follows:
1. short question, requiring an answer in a maximum of 3-4 lines; it is a matter of remembering the principles of the selection of materials through indices and graphs, for a maximum of 2 points
2. extended question, requiring a structured, but synthetic (10-12 lines) answer, also with the support of schemes; the question concerns one of the fundamental case studies regarding the selection of materials through indices and graphs; the complete mastery of the characterizing equations and of the mathematical treatments is required in order to obtain suitable indices. The answer yields a maximum of 5 points; the student can choose to answer an alternative question, similar but simpler, for a maximum of 3 points
3-4-5. short exercises of graphic selection and / or numerical selection with multiple objectives, each for a maximum of 3 points; a full understanding of the graphical and numerical algorithms, coupled with precision in the calculations, is required
6. short exercise of selection of materials and shape, for a maximum of 3 points; a full understanding of the graphical and numerical algorithms, coupled with precision in the calculations, is required
7. extended question, requiring a structured, but synthetic answer (as above); it is a matter of remembering the principles of the design of composite materials for advanced applications (reporting constitutive equations and / or architectures), for a maximum of 4 points
8. short exercise of graphical evaluation of the efficiency of composites: it is a matter of discussing, by means of graphs, the efficiency of composites for fundamental applications, with the support of selection indexes, for a maximum of 3 points
9. extended exercise of selection of materials and shape, for a maximum of 5 points; complete mastery of definitions, graphical and numerical algorithms is required, as well as precision in the calculations
The sum of the scores determines the overall grade (maximum = 31 points).

The written test can be replaced by two review tests, i.e. midterm review test and final review tests (the second test is carried out in correspondence with the first call). The first test is in "quiz mode", ie on 21 multiple choice questions (4 options, 1 valid only), on topics of the first part of the course; each question corresponds to 1.5 points (maximum = 31.5). The answer presupposes the full mastery of definitions and descriptions, or mathematical treatments. The second test consists of a written test with the same organization as the written exam test, but with questions and exercises related to the second part of the course only. The final grade is expressed as the average of the scores in the two review tests.

The "practical" test consists of a report, done by the student, on the selection of materials for a specific application, suggested by the teacher (each student is required to study a different application). The drafting of the report presupposes the complete mastery of the selection methods, including the use of the CES (Cambridge Engineering Selector) software.

The final grade is determined by the weighted average of the marks assigned to the written test (or to the whole of the assessments) [80%], and to the practical test [20%].

The maximum grade ("30/30 cum laude") is awarded for a final score of at least 31 points.
Assessment criteria: The evaluation criteria consist of:
1. Completeness of the acquired knowledge
2. Property of technical terminology
3. Consistency and precision in the application of numerical algorithms and material selection graphs
4. Accuracy in the application of material design methods (including numerical algorithms and material selection graphs) according to the applications
Course unit contents: The course is divided into several sections:
- Materials selection, p.1: selection at the basic level
Introduction to material properties charts: development and use. Definition of materials indices: performance of a component according to a combination of properties; selection through charts and indices. Presentation of "pure" selection case studies, with discussion of the characteristic equations and derivation of selection indices.
- Materials selection, p.2: selection under conditions of multiple constraints and objectives
Selection with different objectives realized through control of the same characteristic, with different case studies; numerical and graphic solution. Selection with different and potentially conflicting objectives, with different case studies; graphical solution for cases with two priority objectives, through functions and penalization curves; numerical solution, through generalized penalization and performance functions, with estimation of weight factors, for cases with multiple objectives and / or for the refinement of solutions obtained through graphic selection.
- Materials design, p.1: simultaneous selection of materials and shape
Design of components through synergistic control of material and shape: basics and definition of shape factors. Selection of materials through indexes including the shape factors: numerical and graphic solutions.
- Materials design, p.2: optimization of component performance through combinations of materials
Study of the efficiency of reinforcing phases in composite materials, by means of graphical selection methods. Study of the efficiency of cellular materials. Case studies of materials combinations for advanced applications.
- Fundamentals of environmental materials selection
Environmental impact monitoring methods. Definition and application of eco-audits. Updating of methods for the selection of materials and shapes for environmental sustainability, with case studies.
Planned learning activities and teaching methods: The teaching activities include hours both in the classroom (38 h) and in the computer lab (10 h). During classroom hours, on computer support (projected slides), the theoretical contents of the course are addressed. Demonstrations and examples of calculation are selected by the teacher and developed step by step on the blackboard. During class hours in the computer lab, the functionalities of the CES (Cambridge Engineering Selector) software are progressively presented and applied in the selection of materials for various technical applications.
Additional notes about suggested reading: All the teaching material presented during the lessons (constituting the topics of the exam) is made available on the Moodle platform, in the form o slides (the same ones projected during the lessons)
Each lesson corresponds to a single block of slides.
Various examples of exercise, including solutions, are available.
The teaching material in Moodle supports the adopted textbook:
M.F. Ashby, Materials Selection in Mechanical Design, Butterworth Heinemann, Oxford, UK

For further information (optional), the teacher recommends the following texts:
M.M. Farag, Materials and Process Selection for Engineering Design. Boca Raton: CRC Press, USA
M.F. Ashby, K. Johnson, Materials and Design, Butterworth Heinemann, Oxford, UK - M.F. Ashby, H. Shercliff, D. Cebon,
M.F. Ashby, H. Shercliff, D. Cebon, Materials, Butterworth Heinemann, Oxford, UK
Textbooks (and optional supplementary readings)
  • M.F. Ashby, Materials Selection in Mechanical Design. Oxford: Elsevier, 2016. Cerca nel catalogo

Innovative teaching methods: Teaching and learning strategies
  • Lecturing
  • Laboratory
  • Problem based learning
  • Case study
  • Interactive lecturing

Innovative teaching methods: Software or applications used
  • Moodle (files, quizzes, workshops, ...)
  • CES (Cambridge Engineering Selector)

Sustainable Development Goals (SDGs)
Industry, Innovation and Infrastructure Sustainable Cities and Communities Responsible Consumption and Production Climate Action