Composite Materials — Winter 2024

What is a composite material?

How do composite materials differ from traditional materials like metals or plastics?

1. What are the primary components of a composite material? 2. What is the matrix phase in composite materials?

What are the advantages of using composite materials over metals?

What is a laminate composite?

1. What is fiber-matrix debonding, and how can it be prevented? 2. What are nano-composites, and how do they differ from conventional composites?

1. How are glass-fiber-reinforced composites (GFRP) different from carbon- fiber composites? 2. What is pultrusion, and how is it used in manufacturing composite materials?

What are the principal material axes in a unidirectional lamina?

What is Balanced Laminates?

Write a note on Strain-Displacement Relationship.

How does fiber orientation affect the elastic properties of a unidirectional lamina?

What is Symmetric Laminates?

Write a note on Stress-Strain Relationships.

How do fiber and matrix properties influence the overall elastic behavior of a unidirectional lamina?

What are the primary objectives of micromechanical analysis in composites?

What is the importance of boundary conditions in micromechanical models for composites? Explain.

How do micromechanical models handle multiphase composites, including both fiber and matrix interactions?

What role does fiber-matrix interface strength play in determining the overall strength of a composite?1

How is failure initiation predicted in composites using micromechanical analysis?

What is FRP?

Combinations of Composite materials justify the statement.

How does Cox’s model help in predicting the stiffness of composites with aligned fibers? Explain

What is the Mechanical Behavior of Composite Materials?

Write an Applications of Composite material in Aerospace Industry.

Write a note on Fibers and Resins.