An Introduction to Composite Materials (Polymer Composites or Fibre Reinforced Plastics)
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- เผยแพร่เมื่อ 25 เม.ย. 2024
- Polymer composites or fibre-reinforced plastics are extremely important class of industrial materials. They are known as advanced materials as they often combine high strength, stiffness and toughness along with lightness which is rare with most of bulk materials. Today, in most of the high performance engineering applications, fibre reinforced plastics are used. This video provides an introduction to composites - especially the Polymer Composites or Fibre Reinforced Plastics (FRPs). A number of advanced engineering applications of FRPs are explained. The video finishes with the demonstration of two experiments on glass-fibre- epoxy composite. First test is the tensile test using universal testing machine. The second test is on high speed impact test on the composite using a steel ball as the projectile.
Summary:
(1) Polymer composites or Fibre Reinforced Composites are materials that consist of fibres incorporated inside a matrix.
(2) Fibres are generally glass fibres, carbon fibres or aramid (Kevlar) fibres and the matrix can be thermosets (such as epoxy, phenolic etc.) or thermoplastics (such as Nylon).
(3) The most important properties that we achieve in a composite are lightweight, high strength, high Young's modulus, excellent toughness coupled with low coefficient of thermal expansion, thermal resistance, low water absorption etc.
(4) Polymer composites are used in a host of high performance and specialized applications such as airplanes (interior and fuselage etc.), energy harvesting (wind turbine blades etc.) and storage (hydrogen storage), automotives (car body, interior etc.), sports (tennis rackets, badminto rackets, ski, racing boats, racing bicycle etc.), , buildings (roofs, structures etc.) and so on.
If you want to learn about the calculations of strength and modulus for unidirectional fibre composites then you can watch this video: • Composite Analysis for...
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Excellent video sir! Thank you.
👍
awesome presentation.
👍
thank you 😊
You're welcome 👍
Thank you
👍 Welcome!
Nice video good luck my bro
Oh
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Good vidéo
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Sir required some information regarding fracture mechanics of metal composite laminates
I am sorry I am not into the fracture mechanics aspects. Theory is definitely very complex.✔ You should try finite element analysis perhaps.
sir, I'd like to ask about composites.
can you explain about the tensile strength and tensile modulus?
I'm a student currently interested in composites and materials science
thanks.
This you can find in many textbooks. Few pages from my book is linked here: drive.google.com/file/d/1gZhkTfywXx5wRmYom0S2XuQdTX1b7Fuy/view?usp=sharing
You could watch: th-cam.com/video/WhcBM568TlM/w-d-xo.html
Thank for your attention sir 😂😂😂
I am producing FRP for outdoor such as water tank.. what kind of matrix that is the best and economical. Thanks
PVC, HDPE, LDPE
👌
👍thanks
Have you tried using hemp?
No, I have not.
Sir I want to know simple composite material products which used in real life like chair.
Thanks for asking. Presently, composites are not being used for everyday products due to cost. However, it is possible to use short fibre composites which may not be very expensive. My suggestion would be to use epoxy-short glass fibre composites for such products as chair. Another possibility would be to use epoxy or any plastic and bamboo fibres.
We are so used to using materials such as steel, aluminium and wood for everyday products that we are not using composites for everyday products. However, there is good possibility in the construction industry for things such as door frame and door making.
Coucou
Salut
Sa va bien!
Wesh ma couille qu'es tu fou la
✔
a380 is dead
They lost because of over size. Boing focused on fuel efficiency instead.