Mecânica Aplicada

The teaching method of the course will be mostly student-centered, using structural components of daily use, which the student, alone or in a group, will have to analyze and understand, within the scope of mechanics concepts.
The bases for the introduction of nuclear concepts involve the use of several types of methodologies of exposition and discussion. Thus, the following will be implemented:
– Exhibition of content using electronic presentations, to be made available to students as complementary documentation to support the UC;
– Visualization of multimedia content;
– Visualization of components and structural assemblies to support the UC.
Students will be presented with several challenges that contribute to the assessment process, contextualized in the various domains of the course. These challenges involve solving problems associated with understanding the functioning of some structural elements applicable in everyday life, as well as the design, development and construction of structural elements for defined objectives.
Also, exercises to apply each of the UC concepts will be solved, which will serve as a basis for the apprehension of knowledge and the development of challenges.

The general objective of the Applied Mechanics course is for students to acquire knowledge that enables them to understand the behaviour of various structural elements used in industrial environments, with particular emphasis on mechanical construction. Students should be able to understand the conditions of use and stresses to which structural elements are subjected, as well as determine the most suitable material, shape and dimensions to withstand the various types of external stresses applied to machines, parts, structural components, etc., at the lowest possible cost and with adequate safety.

Mechanics-principles and fundamental concepts. General equation of static equilibrium of a body. Types of loads and supports. Centre of gravity of flat areas. Moment of inertia. Internal forces developed in structural elements. Stress diagrams. Truss systems. Ritter’s method. Strength of Materials. Mechanical properties of materials. Elasticity and plasticity. Hooke’s law. Stress-strain diagrams for ductile and brittle materials. Safety coefficient. Stresses in axially stressed bars. Saint-Venant’s principle. Elongation of a bar. Thermal expansion coefficient. Influence of temperature on the elongation of a bar: Statically indeterminate structures. Shear. Torsion in circular and non-circular section parts. Shear stresses. Bending of straight-axis beams. Normal compression and tension stresses. Neutral line equation. Bending combined with axial load. Shear stresses in bending.

• - Tests (70%) and case studies (30%) / Exam (100%) - 100.0%

NAO