Mechanics of Materials I

Scholar Year: 2020/2021 - 1S

Courses

Head Teacher Responsability Aníbal Jorge de Jesus Valido Head

Weekly workload Hours/week T TP P PL L TC THE EL OT OT/PL TPL S Type of classes 3 2 Lectures Type Teacher Classes Hours Theorethical and Practical classes Totals 2 6,00 Aníbal Valido   6,00 Prática Laboratorial Totals 4 8,00 Emanuel Rodrigues   6,00 Ricardo Cláudio   2,00

Teaching language

Portuguese

Intended learning outcomes (Knowledges, skills and competencies to be developed by the students)

Provide the students with simplified methodologies for calculation simple mechanical elements (bars, shafts
and beams) subjected to the action of axial and transverse loads and bending and torsion moments.
Introducing English nomenclature of this area of knowledge. Contributing to acquire skills of knowledge and understanding of these subjects, as well as their practical application.

Syllabus

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

Demonstration of the syllabus coherence with the UC intended learning outcomes

1. Introduction to the Mechanical of Materials; Concept of Stress
Know the concepts of normal stress, shear stress and state of stress in a point. Identify the different stress in mechanical components.
2. Axial Loading
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. Understand the behavior of fiber reinforced materials. Know the Saint-Venant principle.
3. Torsion
Draw the torsion moment diagram. Evaluate stresses and deformations in circular shafts and in thin-walled members. Solve statically indeterminate problems in torsion.
4. Pure Bending
Evaluate stresses and deformations in symmetrical beams under pure bending. Explain the cross section deformation and the concept of anticlastic curvature. Evaluate stresses and deformations in beams made of several materials. Evaluate stresses and deformations in beams under unsymmetrical bending.
5. Transverse Loading
Draw the shear and bending moment diagrams. Know the concept of shear center and determine its location in case of thin-walled beams whit at least one symmetry axis. Evaluate shear stresses in thin-walled beams. Evaluate stresses in beams under combined loading.
6. Deflection of Beams
Determine the equation of the elastic curve. Solve statically indeterminate problems using the superposition principle.

Teaching methodologies

Theoretical-Practical classes: Theoretical exposure of the subjects followed by problems solving;
Practical-laboratorial classes: Realization of practical works using experimental stress analysis; Problems solving.

Demonstration of the teaching methodologies coherence with the curricular unit's intended learning outcomes

The Theoretical-Practical classes are composed by an expositive part, where the fundamental concepts of the different subjects are presented, followed by problems solving. The students are stimulated to participate in the resolution of the problems.
In the Practical-Laboratory classes the students in group, perform under the teacher supervision, practical work with specific guidelines and final report presentation, or solve exercises to consolidate the subjects taught.

Assessment methodologies and evidences

Distributed assessment without final exam:

a) Written component
Performance of 2 tests (T1 and T2) and 4 problem sheets (FP1, FP2, FP3 and FP4)

b) Laboratory component
Carrying out 4 practical works (L1, L2, L3 and L4)

The final grade (NF) is given by:
NF = 0,7*T + 0,1*FP + 0,2*L

where:
T - test scores average
L - mean of the laboratories classification;
FP - average of the classification of problem sheets.

Conditions for approval in the course:
Mandatory completion of the 4 practical works;
T >= 8 values;
NF >= 9,5 values;

In the normal assessment period the students can recover one of the tests or to take a final test (PF) that replaces the entire written component of the evaluation. At the appeal assessment period students may take a final test (FP) which replaces the entire written component of the evaluation.
In these cases, the final grade (NF) is given by:

NF = 0,8*PF + 0,2*L

where:
PF - classification of the Final Test
L - mean of the Laboratories classification;

Conditions for approval in the course:
PF >= 8 values
NF >= 9,5 values;

Attendance system

The 4 practical works performed in the Laboratory are mandatory and are performed by groups of 3 students.

Assement and Attendance registers

Primary Bibliography

Secondary Bibliography

Observations

Dates of assessment tests

T1 - 29/11/2018 at 6:30 p.m.
T2 - 21/01/2019 at 6:30 p.m.
FP - problem sheets are held in PL classes at the end of each chapter according to the planning of the CU;
L - Laboratory work is performed according to the planning of the CU;

The tests and the final test are done without consultation, and a form is distributed.
The classification of the laboratories is considered in the year in which they are performed and can be considered in the two years provided that the student obtains (in each year) a minimum of 5 marks in one of the tests.
Plagiarism of any evaluation component (test, final test or lab work) will be reported superior for disciplinary action.


Justification of the ECTS

Registered Assessment Components and Occupation = 163 h
Average value = 163/27 = 6 ECTS
Note: 1 ECTS corresponds to 27 hours of work

Hours of Doubts:
Aníbal Valido: Wednesday from 4:30 p.m. to 6:00 p.m. ; Friday from 3:00 p.m. to 4:30 p.m.
Ricardo Cláudio: Tuesday from 3:30 p.m. to 5:00 p.m.
Emanuel Rodrigues: Thursday from 3:30 p.m. to 5:00 p.m.