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Risorse bibliografiche
Risorsa bibliografica obbligatoria
Risorsa bibliografica facoltativa
Scheda Riassuntiva
Anno Accademico 2018/2019
Scuola Scuola di Ingegneria Civile, Ambientale e Territoriale
Insegnamento 092839 - COMPUTATIONAL MECHANICS AND INELASTIC STRUCTURAL ANALYSIS
Docente Corigliano Alberto
Cfu 10.00 Tipo insegnamento Monodisciplinare

Corso di Studi Codice Piano di Studio preventivamente approvato Da (compreso) A (escluso) Insegnamento
Ing - Civ (Mag.)(ord. 270) - MI (488) INGEGNERIA CIVILE - CIVIL ENGINEERING*AZZZZ092846 - COMPUTATIONAL MECHANICS 1
092839 - COMPUTATIONAL MECHANICS AND INELASTIC STRUCTURAL ANALYSIS
Ing Ind - Inf (Mag.)(ord. 270) - BV (478) NUCLEAR ENGINEERING - INGEGNERIA NUCLEARE*AZZZZ092839 - COMPUTATIONAL MECHANICS AND INELASTIC STRUCTURAL ANALYSIS

Obiettivi dell'insegnamento

The course aim at:

- describing in detail the linear elastic problem as the fundamental problem governing the behaviour of solids and structures;

- formulating the linear elastic problem for solids and structures in a way suitable for numerical treatment;

- describing the Finite Element Method for linear elastic bodies and structures;

- giving to the students capabilities in the implementation of the Finite Element Method through laboratory sessions;

- describing the elasto-plastic behaviour of materials and structures;

- presenting the theory of limit analysis for elasto-plastic continua and structures;

- presenting the theory of limit states occurring due to variable-repeated loads acting on elasto-plastic continua and structures.


Risultati di apprendimento attesi

After attending the course and after the final examination, the student will:

- know the formulation and relevant hypotheses of the linear elastic problem for solid continua and structural elements;

- know the general formulation of the Finite Element Method for linear elastic problems;

- know how to implement in computer codes the Finite Element Method for linear elastic continua and structures;

- know the formulation of elasto-plastic constituive laws;

- know the theory of limit analysis for elasto-perfectly plastic continua and structures;

- be able to apply the theory of limit analysis for the determination of the collapse load of bi-dimensional elasto-plastic frame structures;

- know the theory of limit states for elasto-plastic bodies and structures subject to variable, repeated loads.

The student will be able to discuss the above acquired knowledges with a clear and appropriate language and will be able to reproduce the fundamental reasoning and proofs that bring to the demonstration of the theorems presented during the classes.


Argomenti trattati

- Part 1: The structural problem.

General formulation of the elastic boundary-value problem.

Virtual work principle; virtual displacements and virtual forces principles.

Potential energy and complementary energy theorems.

Plane strain and plane stress elastic problems.

Axi-symmetric elastic problem.

Structural theories: Timoshenko and Euler-Bernoulli beam theories.

 

- Part 2: The finite element method in linear problems

Displacement approach for truss structures.

The Rayleigh-Ritz method for the displacement approach.

General formulation of the displacement-based finite element method: mesh construction; displacement model; stiffness and mass matrices; equivalent nodal loads; assembling procedure; solution; convergence criteria.

Finite elements for plane problems.

Isoparametric finite elements.

Finite elements for axi-symmetric problems.

Finite elements for Euler-Bernoulli and Timoshenko beams.

Numerical integration.

 

- Part 3: Elasto-plastic behaviour of materials and beams

Uni-dimensional elasto-plastic constitutive law: perfectly-plastic and hardening behaviours.

Three-dimensional elasto-plastic constitutive law: von Mises yielding function, associative flow rule, isotropic hardening.

Perfectly-plastic beams under bending and axial force.

Limit domains for beam sections under bending and axial force.

 

- Part 4: Limit analysis

Fundamentals of limit analysis for frames: static and kinematic theorems, corollaries.

Limit analysis of frames by direct methods and by linear programming.

Limit analysis for elasto-plastic continua.

Shakedown analysis: Bleich-Melan theorem.

 

 

 


Prerequisiti

Requested background

Mathematical analysis

Rigid body Mechanics

Deformable Solids and structural mechanics

 


Modalità di valutazione

The examination includes the following parts.

- An (elective) work in which the student applies the knowledge acquired during the laboratory classes on the Finite Element Method.

- A written exam including quantitative exercises and open questions on the course topics.

- An oral exam in which the examiner check the student's preparation asking supplementary information on the solved quantitative exercises of the written text and ask general questions on the course contents.

The student during the final oral exam must be able to clearly describe and critically discuss the topics, with the related hyoptheses, the critical points, the mechanical meaning and their consequences.


Bibliografia
Risorsa bibliografica obbligatoriaA. Corigliano, A. Taliercio, Meccanica Computazionale. Soluzione del problema elastico lineare. Esculapio, Editore: Esculapio, Bologna, Anno edizione: 2005
Risorsa bibliografica facoltativaL. Corradi, Meccanica delle strutture. voll. 1, 2, 3, Editore: McGraw-Hill, seconda edizione, Anno edizione: 2010
Risorsa bibliografica facoltativaL. E. Malvern, Introduction to the mechanics of a continuous medium, Editore: Prentice Hall, Anno edizione: 1969
Risorsa bibliografica facoltativaM. Bonnet, A. Frangi, C. Rey, The finite element method in solid mechanics, Editore: Mc Graw Hill, Anno edizione: 2014
Risorsa bibliografica facoltativaK.J. Bathe, Finite Element Procedures, Editore: Prentice Hall, Anno edizione: 1996
Risorsa bibliografica facoltativaC. Massonet e M. Save., Calcolo plastico a rottura delle costruzioni, Editore: CLUP, Milano, Anno edizione: 1980
Risorsa bibliografica facoltativaV. Franciosi, Calcolo a Rottura, Editore: Liguori, Anno edizione: 1986
Risorsa bibliografica facoltativaS. Kaliszky,, Plasticity: Theory and Engineering Applications,, Editore: Elsevier, Anno edizione: 1989
Risorsa bibliografica facoltativaA. Khan, Huang, Continuum theory of plasticity, Editore: John Wiley & Sons, Anno edizione: 1995

Forme didattiche
Tipo Forma Didattica Ore di attività svolte in aula
(hh:mm)
Ore di studio autonome
(hh:mm)
Lezione
60:00
90:00
Esercitazione
30:00
45:00
Laboratorio Informatico
10:00
15:00
Laboratorio Sperimentale
0:00
0:00
Laboratorio Di Progetto
0:00
0:00
Totale 100:00 150:00

Informazioni in lingua inglese a supporto dell'internazionalizzazione
Insegnamento erogato in lingua Inglese
Disponibilità di materiale didattico/slides in lingua inglese
Disponibilità di libri di testo/bibliografia in lingua inglese
Possibilità di sostenere l'esame in lingua inglese
Disponibilità di supporto didattico in lingua inglese

Note Docente
schedaincarico v. 1.6.1 / 1.6.1
Area Servizi ICT
23/10/2019