Mechanical Behavior of Nanomaterials
Objectives
The UC intends to provide the students the required knowledge to mechanically characterize a material, through the execution of quality control tests.
General characterization
Code
10418
Credits
6.0
Responsible teacher
Alexandre José da Costa Velhinho
Hours
Weekly - 5
Total - 84
Teaching language
Português
Prerequisites
N/A
Bibliography
Overview of the mechanical behavior of materials.
Theory of Elasticity.
Characterization of the mechanical behavior of a material: tensile behavior.
Mechanical behavior of polymers.
Phenomenology of the plastic deformation.
Plastic deformation of metals.
Production of nanomaterials/nanostructuredmaterials.
Mechanical properties of nanocrystalline materials.
Inverse Hall-Petch effect.
- Deformation mechanisms in nanstructured materials.
- Models of the mechanical behavior of nanocrystalline materials.
Failure in service:
- Fracture
- Fatigue
Thermal fatigue.
Thermal stresses in thin films.
- Creep
Teaching method
Teaching comprises
- tyheoretical sessions, where basic concepts are presented,
- practical sessions in laboratory (processing, mechanical testing and characterization techniques),
- theoretica-practical sessions for numerical resolution of problems and data processing from experiments in lab sessions.
Evaluation method
Two tests, lab reports, final exam.
Participation in lab sessions is mandatory, and must be accompanied by the submission of reports, in order to obtain frequency of the curricular unit.
The tests are not obligatory, but should be undertaken to insure exemption from the final exam; a minimum average mark of 9.5 is required to insure exemption from the final exam. If this condition is not fulfilled, the student must submit to the final exam.
The final grade (NF) is obtained as:
NF = 0.30* T1 + 0.30 + T2 + 0.20* R1 + 0.20 * R2 (for the case of exemption from the final exam) or;
NF = 0.60*NE + 0.20* R1 + 0.20 * R2 (for the case of participation in the final exam).
In the above, T1 and T2 are the grades attained in the mid-term tests, R1 and R2 ar the grades of the lab reports and NE stands for the grade in the final exam.
Subject matter
Overview of the mechanical behavior of materials.
Theory of Elasticity.
Characterization of the mechanical behavior of a material: tensile behavior.
Mechanical behavior of polymers.
Phenomenology of the plastic deformation.
Plastic deformation of metals.
Production of nanomaterials/nanostructuredmaterials.
Mechanical properties of nanocrystalline materials.
Inverse Hall-Petch effect.
- Deformation mechanisms in nanstructured materials.
- Models of the mechanical behavior of nanocrystalline materials.
Failure in service:
- Fracture
- Fatigue
Thermal fatigue.
Thermal stresses in thin films.
- Creep