This presentation summarizes key information about composite materials. It defines composites as materials composed of at least two elements that produce different properties than the individual elements. Composites have improved properties that cannot be achieved by the individual materials alone. Examples of composites include fiber reinforced plastics using fibers like carbon and glass, as well as metal matrix composites. Composites provide advantages like strength, stiffness, corrosion resistance, and low weight. Applications include use in aircraft, boats, automobiles, and construction.

1. A Mini Project Presentation
On
“Composite Materials”
Submitted To:
Mr. BRIJBHOOSHAN YADAV
Asst. Prof. M.E. Dept.
(BSACET, MATHURA)
Presented By:
AMIT KUMAR
1900650400002
(M.E. 4th Year)
DEPARTMENT OF MECHANICAL ENGINEERING

2. Contents
• What are Composites.
• Importance of Composites.
• History.
• Examples of Composites.
• Types of Composites.
• Advantages.
• Disadvantages.
• Applications.
• Conclusion.
• References.

3. WHAT ARE COMPOSITES
• In its most basic form a composite material is one,
which is composed of at least two elements working
together to produce material properties that are
different to the properties of those elements on their
own.
• The most common composite is the fibrous composite
consisting of reinforcing fibres embedded in a binder
or matrix materials.

4. IMPORTANCE OF
COMPOSITES
• Composites have properties, which could not be
achieved by either of the constituent materials
alone.
• We can see that composites are becoming
more and more important as it can help to
improve our quality of life.
• Composites are put into service in flight vehicles,
automobiles, boats, pipelines, buildings, roads,
bridges, and dozens of other products.

5. HISTORY
• The most primitive composite materials were straw
and mud combined to form bricks for building
construction; the Biblical book of Exodus speaks of the
Israelites being oppressed by Pharaoh, by being
forced to make bricks without straw being provided.
• The ancient brick-making process can still be seen on
Egyptian tomb paintings in the Metropolitan Museum
of Art.
• The most advanced examples perform routinely on
spacecraft in demanding environments.
• The most visible applications pave our roadways in
the form of either steel and aggregate reinforced
portland cement or asphalt concrete.
• Those composites closest to our personal hygiene
form our shower stalls and bath tubs made of
fiberglass.

6. EXAMPLES OF COMPOSITES
• Fibre reinforced plastics:
– Classified by type of fiber:
• Wood (cellulose fibers in a lignin and hemicellulose matrix)
• Carbon-fibre reinforced plastic or CRP
• Glass-fibre reinforced plastic or GRP (informally, "fiberglass")
– Classified by matrix:
• Thermoplastic Composites
– long fiber thermoplastics or long fiber reinforced thermoplastics
– glass mat thermoplastics
• Thermoset Composites
•
• Metal matrix composites or MMCs:
• White cast iron
– Hardmetal (carbide in metal matrix)
– Metal-intermetallic laminate
• Ceramic matrix composites:
– Cermet (ceramic and metal)
– concrete
– Reinforced carbon-carbon (carbon fibre in a graphite matrix)
– Bone (hydroxyapatite reinforced with collagen fibers)
• Organic matrix/ceramic aggregate composites
– Mother of Pearl
– Syntactic foam
– Asphalt concrete

7. TYPES OF COMPOSITES

8. ADVANTAGES OF
COMPOSITE
• High strength and stiffness
• Light weight
• Corrosion resistance (long life)
• Design and formulation flexibility
• Fatigue resistance
• Good damping characteristics
• Low thermal expansion
• Unitized structure

9. DISADVANTAGES
• Composite hazards
• High cost (compared to metals)
• Manufacturing time

10. APPLICATIONS
• Building Construction
• Aircraft Wings
• Marine Applications
• Automobile Industries
• Kitchen Utensils
• Cars & Bicycles

11. CONCLUSION
• Controlling both stiffness and strength, is the
way in which an applied load is shared between
fibres and matrix.
• Understand how the slab model is used to
obtain axial and transverse stiffnesses for long
fibre composites.
• The treatments employed neglect thermal
residual stresses, which can in practice be
significant in some cases

12. REFERENCES
• Waterman, Pamela J., "The Life of Composite
Materials", Desktop Engineering Magazine April
2007, http://66.195.41.10/Articles/Feature/The-
Life-of-Composite-Materials-200704101800.html
• ^ Matzkanin, George A.; Yolken, H. Thomas,
"Techniques for the Nondestructive Evaluation
of Polymer Matrix Composites", AMMTIAC
Quarterly Vol. 2, No 4,
http://ammtiac.alionscience.com/pdf/AQV2N4.pd
f
• ^ Products, High Pressure Vessel Technology,
Scorpius.com

13. THANK U
ANY QUESTIONS?