Introduction to Composites By D Sameer Kumar OVERVIEW
Introduction to Composites By D. Sameer Kumar
OVERVIEW • What are Composites • Why Composites • Composite Vs alloys • Classification of Composites • Examples of Composites • Properties of Composites
Composite Materials - Definition • A Composite Material consists of two or Materials • Composites Produce a stronger and Lighter structure with Low Cost • Composites consists of Two Components – Matrix – Reinforcement Composite Material MATRIX + REINFORCEMENT Ref : http: //training. pluscomposites. eu/courses/components
Role of Matrix and Reinforcement • Matrix – Holds the reinforcement together. – Protects the reinforcement from environment. – Distributes the loads evenly between reinforcement so that all reinforcement are subjected to the same. • Reinforcement – The role of the reinforcement is to strengthen and stiffen the composite through prevention of matrix deformation by mechanical restraint. – The addition of reinforcement increases the strength, stiffness and temperature capability while reducing thermal expansion coefficient
Composites Vs Alloys • Both are combination of materials but , In alloy atleast one of them should be a metal. • A composite material is often heterogeneous, and is not always of metals. • In an alloy, the constituent elements does not retain their original properties after mixing but whereas in a composite, the materials forming the composite retain their original properties. • Alloys have atomistic level mixing while Composites have particle level mixing. • Examples of Alloys : Steel and Brass Examples of Composites : Concrete and Fiber Glass.
Why Composites? • • • LIGHT WEIGHT HIGH STRENGTH RELATED TO WEIGHT CORROSION RESISTANCE HIGH-IMPACT STRENGTH DESIGN FLEXIBILITY DIMENSIONAL STABILITY DURABLE LOW THERMAL CONDUCTIVITY PART CONSOLIDATION and More…
Composites - Classification Composites Matrix Metal Matrix Polymer Matrix Ceramic Matrix Reinforcement Carbon Matrix Particle reinforced Fiber Reinforced Thermosets Large Particle Continuous Thrmo. Plasts Dispersion Strengthened Discontinuous Rubber Composites Terminology MMC : Metal Matrix Composites PMC : Polymer Matrix Composites FRP : Fiber Reinforced Plastics GFRP : Glass Fiber Reinforced Plastics
Various types of reinforcements Ref : http: //nptel. ac. in/courses/Webcourse-contents/IISc. BANG/Composite%20 Materials/pdf/Lecture_Notes/LNm 1. pdf
Applications of Composites Ref : http: //image. slidesharecdn. com/compositepresentation-140318211701 phpapp 02/95/composite-materials-21 -638. jpg? cb=1395177572
…. . Thank You
- Slides: 10