Introduction to Composite Materials — Lesson 1

This lesson covers the fundamental concepts of fiber reinforced polymer composites, their structure, and their applications. It delves into the definition of composites, explaining that they are a combination of two or more materials combined on a macroscopic scale to form a useful material with improved qualities. The lesson also discusses the classification and types of fiber reinforced polymer composites, their advantages, limitations, and the important terminologies used in this field. It further explains the concept of specific modulus and specific strength, and how these properties influence the weight and performance of composite structures. The lesson concludes with a discussion on the applications of these composites in various industries like aerospace, automobile, sports, and chemical industries.

Video Highlights

03:54 - Definition of composite materials and their properties
09:35 - Characteristics of composite materials
17:56 - Improved properties of composite materials
19:39 - Reinforcements used in composite material
31:54 - Advantages and limitations of composites
38:47 - Applications of fiber reinforced polymer composites

Key Takeaways

- Fiber reinforced polymer composites are a combination of two or more materials combined on a macroscopic scale to form a useful material with improved qualities.
- These composites have a reinforcement phase, which is the load-bearing constituent, and a matrix phase, which acts as a binder.
- The properties of composites are markedly different from their constituent materials, offering higher specific strength and specific modulus.
- The anisotropic nature of composites allows for tailor-making capabilities, enabling the design of materials with specific properties for specific applications.
- Composites find extensive applications in various industries due to their improved properties and performance.