Course unit
Mechanical and Thermal Resistance
Last updated: 22/02/2024
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Course Director(s):
DARRIEULAT Michel
General Description:
Building economically and sustainably has always been a major preoccupation. To meet these criteria it is necessary to obtain the desired effect (load resistance, resistance to climatic variations) by using just the right material. Safety considerations must be guaranteed by foreseeing natural risk hazards or by introducing regulations.
These are the preoccupations at the core of the present course. It provides students with the opportunity to make application calculations. A certain degree of practical experience is in fact required before feeling comfortable about dealing with problems related to structural or thermal resistance. The Unit is completed by practical work related to a very common problem in the construction industry; the resistance of reinforced concrete beams.
Key words:
Elasticity
flexion
buckling
Thermal conduction
Number of teaching hours
21
Fields of study
Energetics
Mechanical Engineering
Teaching language
French
Intended learning outcomes
| On completion of the unit, the student will be capable of: |
Classification level |
Priority |
| Calculating a beam subject to flexion |
3. Apply |
Essential |
| Calculating a mesh |
2. Understand |
Important |
| Foreseeing buckling phenomena in elongated structures |
4. Analyse |
Important |
| Predicting plate behaviour |
2. Understand |
Important |
| Calculating the thermal resistance of walls |
3. Apply |
Essential |
| Producing a reinforced concrete beam |
3. Apply |
Essential |
Learning assessment methods
|
Percentage ratio of individual assessment
|
Percentage ratio of group assessment
|
|
Written exam:
|
80
|
%
|
Project submission:
|
0
|
%
|
|
Individual oral exam:
|
0
|
%
|
Group presentation:
|
0
|
%
|
|
Individual presentation:
|
0
|
%
|
Group practical exercise:
|
0
|
%
|
|
Individual practical exercise:
|
0
|
%
|
Group report:
|
20
|
%
|
|
Individual report:
|
0
|
%
|
|
|
|
|
Other(s): 0 %
|
Programme and content
| Type of teaching activity |
Content, sequencing and organisation |
| Course |
Many students will have had basic initiation in beam construction techniques, acquired during courses on continuum mechanics. With this as a foundation the course is essentially focused on applications. Training to begin with will concentrate on beam calculations in different common configurations in construction and engineering works: flexion and buckling. The particular use of meshes in beam construction will be dealt with. An initiation into plate calculation will finalise the activity |
| Course |
Reminders of the main notions of
thermics (conduction, diffusion, effusion) already seen by the students,
and the problem of building thermics in terms of conducting media (e.g.
air), insulation and thermal bridges. The most recent technological
solutions will be referred to and related to climatic and environmental
aspects. |
| Practical courses |
It
was decided to initiate students in reinforced concrete by means of a
practical course. Students will firstly calculate a formulation, then
the steel reinforcement, to produce a beam which is cast then subjected
to flexion tests 28 days later. Observation is made of the zone of
elastic resistance, then of the cracking and the gradual deterioration
of the beam. Note is made of the notions of ultimate limit state and
limit of serviceability state. |