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Degradation and Ruin of Biomaterials

Code:

MEB10

Sigla:

DRB

Áreas Científicas
Classificação	Área Científica
OFICIAL	Solid Mechanics

Ocorrência: 2022/2023 - 2S

Ativa?	Yes
Unidade Responsável:	Departamento de Engenharia Mecânica
Curso/CE Responsável:

Ciclos de Estudo/Cursos

Sigla	Nº de Estudantes	Plano de Estudos	Anos Curriculares	Créditos UCN	Créditos ECTS	Horas de Contacto	Horas Totais
MEB	15	Plano Oficial do ano letivo 2021	1	-	6	60	162

Língua de trabalho

Portuguese

Objetivos

1. Know an integrated view of the main modes of degradation and ruin of biomaterials
2. Identification of different types of ruin and degradation of biomaterials.
3. Identify ways to control and minimize the occurrence of ruin and degradation of biomaterials.
4. Calculate the life span of an implant due to fatigue.
5. Design mechanical components to avoid fracture in vivo.
6. Establish protocols for testing resistance to ruin and degradation of in-vitro biomaterials for biomedical applications
7. Test the resistance to ruin and degradation in in-vitro conditions

Resultados de aprendizagem e competências

Objective a) To provide the student with an integrated view of the main modes of degradation and ruin of biomaterials and their impact on the host organism (points 1 and 2 of the syllabus)
Objective b) Identification of the different types of ruin and degradation of biomaterials (point 3-8 of the syllabus)
Objective c) Identify ways to control and minimize the occurrence of the phenomena of ruin and degradation of biomaterials in vivo (points 3-8 of the syllabus)
Objective d) Calculate the life span of an implant due to fatigue (point 6 of the syllabus)
Objective e) To design mechanical components in order to avoid fracture in vivo (points 8 of the syllabus)
Objective f) To establish in-vitro testing protocols for biomedical applications, (points 1-8 of the syllabus)
Objective g) to test materials for resistance to ruin and in-vitro degradation. (points 3-8 of the syllabus)

Modo de trabalho

Presencial

Programa

1. Biomaterial-host interaction.
2. Changes in the biological environment due to products resulting from the degradation of materials.
3. Metallic corrosion
a. Fundamentals of electrochemistry
b. Types of metallic corrosion
c. Corrosion protectiond. In-vivo case study of metallic corrosion
4. Chemical degradation of polymers and ceramics
5. Biotribology
a. Tribology fundamentals (surface properties, friction, wear, lubrication)
b. Skin Tribology
c. Tribology of the oral cavity
d. Tribology of the joints
e. Tribology of other living systems
6. Fracture
7. Fatigue
a. Fatigue mechanisms in biomaterials
b. Fatigue curves
c. Fatigue propagation
8. Creep

Bibliografia Obrigatória

Dowling, Norman E.; Mechanical Behavior of Materials, Harlow: Pearson, 4ª Ed , 2012
Eliaz, Noam; Degradation of Implant Materials, New York: Springer, Editors, 2012

Métodos de ensino e atividades de aprendizagem

The teaching methodology goes through theoretical-practical classes in which the fundamentals will be taught using the expository method. In these classes, the individual work methodology will also be used, where students will carry out various works inrelation to the practical application of the concepts of ruin and material degradation in the biomedical area.
In this UC there will be laboratory work where students will have to establish test protocols and carry out various in-vitro experiments.
TP classes will be taught at a distance using the MS-Teams remote collaboration platform, while PL classes will be taught in person.

Tipo de avaliação

Distributed evaluation without final exam

Componentes de Avaliação

Designation	Peso (%)
Participação presencial	60,00
Trabalho laboratorial	40,00
Total:	100,00

Componentes de Ocupação

Designation	Tempo (Horas)
Frequência das aulas	60,00
Trabalho laboratorial	10,00
Apresentação/discussão de um trabalho científico	10,00
Estudo autónomo	70,00
Trabalho escrito	10,00
Total:	160,00

Obtenção de frequência

The student must carry out all TP work and laboratory work.

Fórmula de cálculo da classificação final

Final Grade = (TP assignments average)x0.6 + (laboratory assignments average)x0.4

Provas e trabalhos especiais

In regular or appeal periods, it is possible to replace the grade of the individual assignments with a written exam, with the same weight in the final average.