Strength of Materials II
Code
10440
Academic unit
Faculdade de Ciências e Tecnologia
Department
Departamento de Engenharia Civil
Credits
6.0
Teacher in charge
João Carlos Gomes Rocha de Almeida
Weekly hours
5
Total hours
70
Teaching language
Português
Objectives
This course complements Strength of Materials 1and deals with fundamental concepts of Structural Mechanics, namely plastic bending, shear, torsion, yield and failure criteria for ductile and brittle materials, and column buckling. As such, it provides knowledge to other courses on analysis and design of structural systems.
Subject matter
Strength of Materials II
1. Plastic bending
Plastic moment.
Plastic hinges.
Moment redistribution.
Evaluation of ultimate loads and collapse mechanisms.
Interaction between axial force and bending moment in plastic domain.
2. Shear
Basic shear theory; design of connections.
Slippage force and shear flow.
Elastic shear stresses in mono-symmetrical sections.
Elastic shear stresses in thin walled sections.
Elastic strain energy due to shear; shear area.
Shear centre.
3. Torsion
Elastic torsion in circular sections.
Elastic torsion in thin walled sections.
Elastic strain energy due to torsion.
Plastic torsion.
4. Yield and failure criteria
Ductile materials: Tresca and von Mises Criteria.
Brittle materials: Rankine and Mohr-Coulomb Criteria.
5. Buckling
Stability of equilibrium.
Euler critical load - buckling length.
Analysis of columns with elastic supports.
Design to buckling according to codes and regulations.
Bibliography
- W. Nash; “Resistência de Materiais”, Ed. McGraw-Hill.
- V. Dias da Silva; “Mecânica e Resistência dos Materiais”, Ed. Zuari.
- F.P. Beer, E.R. Johnston, J.T. DeWolf ; “Resistência dos Materiais”, Ed. McGraw-Hill.
- C. Moura Branco; “Mecânica dos Materiais”, Fundação Calouste Gulbenkian.
- Timoshenko; “Mechanics of Materials”, PWS-Kent Publishing Co.
- Selected problems (available in Clip)
Teaching method
Theoretical and practical classes. Laboratory sessions.
Evaluation method
Two tests or final exam.
Laboratory works and online problems.