Composite Materials

Code:

EM565

Acronym:

MCOM

Instance: 2003/2004 - 1S

Active?	Yes
Responsible unit:	Applied Mechanics Section
Institution Responsible:	Faculty of Engineering

Cycles of Study/Courses

Acronym	No. of Students	Study Plan	Curricular Years	Credits UCN	Credits ECTS	Contact hours	Total Time
LEM	25	Plano de Estudos EM Oficial a partir de 2000	5	3,5	7	-
		Plano para Bachareis EM a partir 2000	2	3,5	7	-

Teaching language

Portuguese

Objectives

Fundamentals of mechanical behavior of composite materials.
Fundamental rules of Manufacturing Techniques.
Basics of Classical Laminate Theory.
Presenting some specific aspects characteristic of these materials.

Program

1) INTRODUCTION

2) COMPONENTS
• Fibres
• Matrix materials
• Charges and other aditives

3) MANUFACTURING PROCESSES
• Contact molding
• Vacuum process
• Compression molding
• Injection molding
• Autoclave processing
• Filament winding process
• Pultrusion process
• Centrifugation
• Continuum molding process
• Injection molding of reinfoced termoplastics

4) BEHAVIOR OF SINGLE LAYER
• Anisotropic
• Orthotropic
• Transversal Orthotropic
• Three-dimensional Constitutive Law in principal axis system
• Three-dimensional Constitutive Law in arbitrary direction
• Constitutive Law for plane stress
• Thermal and humidity effects

5) MICROMECHANICS
• Mechanics of materials models
• Mixture rules

6) FAILURE CRITERIA
• Non interactive criteria
• Interactive criteria
• Partially interactive criteria

7) LAMINATE ANALYSIS
• Classical Laminate Theory

8) FRACTURE MECHANICS
• Fundamentals of Fracture Mechanics
• Interlaminar Fracture

9)MECHANICAL TESTING
• Tensile testing
• Compression testing
• Shear testing
• Bending testing
• Properties evaluation in thickness direction
• Fracture testing

10) ADVANCED TOPICS
• Edge effects
• Hole effects
• Impact
• Fatigue
• Viscoelasticity

11) JOINING OF COMPOSITE MATERIALS
• Mechanical joints
• Adhesive bonding

12) MACHINING AND CUTTING OF COMPOSITES

13) RECYCLING OF COMPOSITES

Main Bibliography

D. Gay, “Matériaux composites”, Hermés, 1987
F. L. Mathew, R. D. Rawlings, “Composite materials: engineering and science”, Chapman & Hall, 1995
P. C. Powell, “Engineering with fibre-polymer laminates”, Chapman & Hall, 1994
R. M. Jones, “Mechanics of composite materials”, McGraw-Hill, 1975
S. W. Tsai, H. T. Hahn, “Introduction to composite materials”, Technomic, 1975
“Engineering materials handbook – vol. 1 – composites”, ASM, 1987
A. Miravete, P. Antequera, L. Jimenez, “Cálculo y diseño de estructuras de materiales compuestos de fibra de vidrio”, Secretariado de Publicaciones de la Universidad de Zaragoza, 1993
A. Miravete, P. Antequera, L. Jimenez, “Los materiales compuestos de fibra de vidrio”, Secretariado de Publicaciones de la Universidad de Zaragoza, 1991
S. W. Tsai, “Theory of composites design”, THINK COMPOSITES, 1992
J. A. Quinn, “Composites design manual”, Technomic, 1999
G. Akovali, “Handbook of composite fabrication”, RAPRA, 2001.

Complementary Bibliography

F. M. Brito, “Caracterização do comportamento dos plásticos reforçados com vista a aplicações estruturais”, LNEC, 1986
B. D. Agarwall, L. J. Broutman, “Analysis and performance of fibre composites”, SPE – John Wiley, 1980
J. Weiss, C. Bord, “Les matériaux composites: I – structure; constituants; fabrication”, Editions de l’Unise Nouvelle, 1983
J. Weiss, C. Bord, “Les matériaux composites: II – calculs; essais et contrôles; concéption”, Editions de l’Unise Nouvelle, 1983
“The composite materials handbook (MIL-17)”, 3 volumes, Technomic, 1999
J. L. Clarke (ed.), Structural Design of Polymer Composites. EUROCOMP Design Code and Handbook, E&FN Spon, 1996

Teaching methods and learning activities

Theoretical lessons.
Pratical lessons where students develop simple projects with composite materials.

Software

Software ESACOMP

Evaluation Type

Distributed evaluation with final exam

Eligibility for exams

As defined by General Frequency Rules.

Calculation formula of final grade

NF=0.3 NP + 0.7 NT
NF – final classification
NP – classification in the project
NT –classification of the final test or exam.

Classification improvement

As defined by General Frequency Rules.