Solid Mechanics

Objectives

To provide basic knowledge about the representation of the stress and strain state in a solid body subject to applied forces and torques. Apply that knowledge to the study of linear members with applied forces and torques, axial and transversal. Topics such as statically indeterminate problems; buckling of the beam due to axial loading or the application of some energy methods, are also covered.

General characterization

Code

10578

Credits

6.0

Responsible teacher

António José Freire Mourão, Helena Victorovna Guitiss Navas

Hours

Weekly - 4

Total - 67

Teaching language

Português

Prerequisites

It is strongly recommended that students have obtained frequency/approval for the discipline Applied Mechanics I.

Bibliography

Mechanics of Materials, 3^rd Edition Ferdinand P. Beer, E. Russell Johnston, Jr. e John T. deWolf - McGraw-Hill

Mecânica dos Materiais-C. Moura Branco-Fundação Calouste Gulbenkian

AppliedMechanicsofMaterials-J. E.Shigley-McGraw-Hill

Teaching method

Theoretical Lectures:

Oral explanation of subjects. A review of subjects addressed in the previous lecture will be done at the beginning of each lecture. At the end of each lecture will be done a summary of the main themes given.

Practical Lessons:

Resolve problems, examples and practical cases, with the pupils. The problems solved are concerned to subjects addressed in the previous theoretical lectures.

Evaluation method

Continuous evaluation (practical work and test):

- Practical work (50% of the final grade) to deliver up to June 9; with presentation and discussion of the works in the week 14 - 17 June (each group will have 15 minutes to present their work).

The work is carried out in groups of 4-5 students. Each group must send their work to hvgn@fct.unl.pt and ajfm@fct.unl.pt until 24:00 on 9 June. Deliveries up to 30 minutes late will be penalized a value; between 30 min and one hour will be penalized with 2 values; works sent later than one hour will not be accepted.

- Test (50% of the final grade) 18th May 11 h.

- Exam in season of exams (with 50% of the final grade; the practical work has the remaining 50%).

Subject matter

Study the Mechanical Behaviour of Materials and work out practical cases concerning to Stress and Strain of prismatic members, in the elastic domain, including the following main subjects:Elasticity: Concept of stress – Normal and Shearing stress – and related Strains; Tensile test of metallic materials; Residual stresses and deformations; Factor of Safety.Representation of plane stress in Mohr''s Circle for stress; Principal Directions and Principal Stress; Relation between Axial Strain and Transversal Strain. Superposition Principle; Multiaxial Loading; Generalized Hooke''s law. Young''s modulus and Poisson''s ratioDimensioning of mechanical members; Dimensioning of Bolts, Pins and Rivets connections

Programs

Programs where the course is taught:

Industrial Engineering and Management