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Mechanics of Materials

Code:

LEM22222

Sigla:

MM

Áreas Científicas
Classificação	Área Científica
OFICIAL	Solid Mechanics

Ocorrência: 2021/2022 - 2S

Ativa?	Yes
Unidade Responsável:	Departamento de Engenharia Mecânica
Curso/CE Responsável:

Ciclos de Estudo/Cursos

Sigla	Nº de Estudantes	Plano de Estudos	Anos Curriculares	Créditos UCN	Créditos ECTS	Horas de Contacto	Horas Totais
EM	99	Plano de Estudos	2	-	6	75	162

Língua de trabalho

Portuguese

Objetivos

At the end of the course the student should:
- Identify the components of the state of stress and state of strain at a point;
- Know how to represent the axial load, torque, shear and bending-moment diagrams;
- Know how to calculate stresses and deformations in simple structural components;
- Know how to solve statically indeterminate problems using the superposition method.

Resultados de aprendizagem e competências

Chapter 1
Know the concepts of normal stress, shear stress and state of stress at a point.

Chapter 2
Know the concepts of normal and shear strain. Draw the axial load diagram. Evaluate the stress and the deformation in members under axial loading. Solve statically indeterminate problems as well as problems involving temperature changes.

Chapter 3
Draw the torsion moment diagram. Evaluate stresses and deformations in circular shafts and in thin-walled members. Solve statically indeterminate problems.

Chapter 4
Evaluate stresses and deformations in symmetrical beams under pure bending. Know the concept of anticlastic curvature. Evaluate stresses in beams under unsymmetrical bending.

Chapter 5
Draw the shear and bending moment diagrams. Know the concept of shear center and determine its location in thin-walled beams whit at least one symmetry axis. Evaluate shear stresses in thin-walled beams.

Chapter 6
Determine the equation of the elastic curve. Solve statically indeterminate problems.

Modo de trabalho

Presencial

Programa

1. Introduction to the Mechanical of Materials; Concept of Stress
2. Stress and Strain - Axial Loading
3. Torsion
4. Pure Bending
5. Transverse Loading
6. Deflection of Beams

Bibliografia Obrigatória

Beer, Johnston, DeWolf and Mazurek; Mechanics of Materials, seventh edition, McGraw-Hill, 2015. ISBN: 978-0-07-339823-5
A. Valido e J. Duarte Silva; Introdução à Extensometria Eléctrica de Resistência, 1997

Métodos de ensino e atividades de aprendizagem

Theoretical-Practical classes:
Theoretical exposure of the subjects and problems solving by students;

Practical-laboratorial classes:
Realization of practical works using experimental stress analysis and problems solving by students.

Tipo de avaliação

Distributed evaluation without final exam

Componentes de Avaliação

Designation	Peso (%)
Teste	70,00
Trabalho escrito	10,00
Trabalho laboratorial	20,00
Total:	100,00

Componentes de Ocupação

Designation	Tempo (Horas)
Estudo autónomo	70,00
Frequência das aulas	75,00
Trabalho laboratorial	20,00
Total:	165,00

Obtenção de frequência

Distributed assessment without final exam:
Performance of 2 tests – TE
Performance of 4 problem sheets - FP
Performance of 4 laboratory works – TL

Fórmula de cálculo da classificação final

Final grade = 0,7*TE + 0,2*TL + 0,1*FP

Conditions for approval in the course:
Mandatory completion of the 4 laboratory works;
Arithmetical media of the 2 tests >= 8,0 values;
Final grade >= 9,5 values;

Observações

In the exam seasons the students can recover the tests;

Laboratory works and problem sheets are done in groups;

The report of one laboratory work is written in English.


Attendance hours:

Aníbal Valido:  Tuesday - from 16:00h to 17:30h;   Thursday - from 15:30h to 17:00h
Emanuel Rodrigues:  Friday - from 14:00h to 16:00h