# Introduction to Composites

- Institution: IIT Kanpur
- Department: Mechanical Engineering
- Teacher: Prof. Nachiketa Tiwari
- Level: Undergraduate
- Language: English
- Subjects: Engineering
- Source: [NPTEL](https://nptel.ac.in/courses/112104229)
- Licence: [CC BY-NC-SA](https://nptel.ac.in/faq) (Non-commercial use only.)
- Syllabus: [at the source](https://nptel.ac.in/courses/112104229)
- Who can watch: Tweens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

This course is intended for all those who want to conduct experiments in area of NVH. Thus, the course is open to students of engineering and science, and also to all those who from the industry and research organizations – who are working in area of sound, NVH and acoustics. Each lecture will be followed by a quiz, which will help student the concepts better, and gain deeper insights to measurement process. The course is fairly generic so that there is no need for a particular background. Rather, what is needed is openness, and ability to learn and check out new ideas with comfort.

Intended audience: UGs, PGs, professionals in industry who want to learn about basics of sound and acoustics

Prerequisites: Must be enrolled into a B. Tech. program or equivalent and should have completed at least second year of his 4-year program.

## Lectures

1. [Lecture 01: Definition of the composite materials](https://invisiblenetwork.ai/learn/nptel/112104229/7ac8a4fc775c) (YouTube)
2. [Lecture 02: Composite materials and its applications.](https://invisiblenetwork.ai/learn/nptel/112104229/aec729cd7eca) (YouTube)
3. [Lecture 03: Classification of the composite materials.](https://invisiblenetwork.ai/learn/nptel/112104229/b87f4f270d94) (YouTube)
4. [Lecture 04: Fibers Strength](https://invisiblenetwork.ai/learn/nptel/112104229/588370eb1dbe) (YouTube)
5. [Lecture 05: Advantages and limitations of composite materials.](https://invisiblenetwork.ai/learn/nptel/112104229/2393da372222) (YouTube)
6. [Lecture 06: Advantages and limitations of composite materials.](https://invisiblenetwork.ai/learn/nptel/112104229/5980f1a05f04) (YouTube)
7. [Lecture 07: Different Types of Fiber](https://invisiblenetwork.ai/learn/nptel/112104229/a8f0b59b30a5) (YouTube)
8. [Lecture 08: Glass Fibers](https://invisiblenetwork.ai/learn/nptel/112104229/7ad62a381fbe) (YouTube)
9. [Lecture 09: Graphite Fibers](https://invisiblenetwork.ai/learn/nptel/112104229/cf54e83c7980) (YouTube)
10. [Lecture10: Aramid and Boron Fibers](https://invisiblenetwork.ai/learn/nptel/112104229/d30cd063175a) (YouTube)
11. [Lecture11: Ceramic Fibers](https://invisiblenetwork.ai/learn/nptel/112104229/5af6cecd3dd9) (YouTube)
12. [Lecture12: Matrix – Properties and classifications.](https://invisiblenetwork.ai/learn/nptel/112104229/c4fdafd5e9ab) (YouTube)
13. [Lecture 13: Polymers as matrix material and their classification](https://invisiblenetwork.ai/learn/nptel/112104229/f8ac718b682c) (YouTube)
14. [Lecture 14: Thermoset and thermoplastic matrix materials](https://invisiblenetwork.ai/learn/nptel/112104229/5fbaaa34a52c) (YouTube)
15. [Lecture 15: Properties of thermoset and thermoplastic materials](https://invisiblenetwork.ai/learn/nptel/112104229/9548a675df0e) (YouTube)
16. [Lecture 16: Production methods](https://invisiblenetwork.ai/learn/nptel/112104229/2b7605d40f40) (YouTube)
17. [Lecture 17: Thermoplastics and metals as matrix materials](https://invisiblenetwork.ai/learn/nptel/112104229/a84dda83fa9f) (YouTube)
18. [Lecture 18: Ceramic, and carbon matrix materials,and filler materials.](https://invisiblenetwork.ai/learn/nptel/112104229/193dda100a56) (YouTube)
19. [Lecture19: What is an appropriate fabrication process of a composite?](https://invisiblenetwork.ai/learn/nptel/112104229/c5d2c47c4ba6) (YouTube)
20. [Lecture20: Fabrication of Thermoset Composites](https://invisiblenetwork.ai/learn/nptel/112104229/4c9a454fc1a9) (YouTube)
21. [Lecture21: Hand Lay-Up Process](https://invisiblenetwork.ai/learn/nptel/112104229/f699c8aefde2) (YouTube)
22. [Lecture22: Bag Molding Process](https://invisiblenetwork.ai/learn/nptel/112104229/80f0c8075301) (YouTube)
23. [Lecture23: Resin Transfer Molding Process](https://invisiblenetwork.ai/learn/nptel/112104229/e186e030dc53) (YouTube)
24. [Lecture24: Fabrication of Thermoplastic, Metal and Ceramic Matrix based Composites](https://invisiblenetwork.ai/learn/nptel/112104229/fb0d61570241) (YouTube)
25. [Lecture 25: Terminologies and basic concepts](https://invisiblenetwork.ai/learn/nptel/112104229/73591894d367) (YouTube)
26. [Lecture26: Orthotropic material](https://invisiblenetwork.ai/learn/nptel/112104229/673e87359486) (YouTube)
27. [Lecture 27: Modeling of unidirectional composites](https://invisiblenetwork.ai/learn/nptel/112104229/e44190184033) (YouTube)
28. [Lecture 28: Composite density as a function of mass fraction and volume fraction](https://invisiblenetwork.ai/learn/nptel/112104229/f0117ff6a0c3) (YouTube)
29. [Lecture 29: Calculation of longitudinal modulus for unidirectional composites](https://invisiblenetwork.ai/learn/nptel/112104229/73d09aca617f) (YouTube)
30. [Lecture30: Failure modes of unidirectional composite](https://invisiblenetwork.ai/learn/nptel/112104229/420e5b5c5b58) (YouTube)
31. [Lecture 31: Failure of Unidirectional Lamina](https://invisiblenetwork.ai/learn/nptel/112104229/fe93ece990f0) (YouTube)
32. [Lecture 32: Minimum Volume Fraction and Critical Volume Fraction](https://invisiblenetwork.ai/learn/nptel/112104229/202fc69a9286) (YouTube)
33. [Lecture 33: Example based on Failure of Composite Material](https://invisiblenetwork.ai/learn/nptel/112104229/c4598c96ec27) (YouTube)
34. [Lecture 34: Example based on Minimum and Critical Volume Fraction](https://invisiblenetwork.ai/learn/nptel/112104229/af3a1ec32ac5) (YouTube)
35. [Lecture 35: Transverse Modulus of Unidirectional Composite](https://invisiblenetwork.ai/learn/nptel/112104229/b22f299fd21b) (YouTube)
36. [Lecture 36: Halpin-Tsai Relation for Transverse Modulus](https://invisiblenetwork.ai/learn/nptel/112104229/bdc15b561ae9) (YouTube)
37. [Lecture 37: Transverse modulus of unidirectional composites](https://invisiblenetwork.ai/learn/nptel/112104229/b5efc21bd7e6) (YouTube)
38. [Lecture 38: Transverse strength of unidirectional composites](https://invisiblenetwork.ai/learn/nptel/112104229/31c3ac9ffa6a) (YouTube)
39. [Lecture 39: Poisson’s ratio of unidirectional composites](https://invisiblenetwork.ai/learn/nptel/112104229/82821611b7c2) (YouTube)
40. [Lecture 40: Failure modes of composite materials](https://invisiblenetwork.ai/learn/nptel/112104229/788e4c037987) (YouTube)
41. [Lecture 41: - Failure modes of composite materials](https://invisiblenetwork.ai/learn/nptel/112104229/948220a98b0a) (YouTube)
42. [Lecture 42: Other properties](https://invisiblenetwork.ai/learn/nptel/112104229/15712ea20e8f) (YouTube)
43. [Lecture 43: Concept of Tensor](https://invisiblenetwork.ai/learn/nptel/112104229/1168b3acd229) (YouTube)
44. [Lecture 44: Stress Transformation (Two Dimensional)](https://invisiblenetwork.ai/learn/nptel/112104229/8fecf810ac33) (YouTube)
45. [Lecture 45: Analysis of Specially Orthotropic Lamina](https://invisiblenetwork.ai/learn/nptel/112104229/a71ad7011331) (YouTube)
46. [Lecture 46: Analysis of Generally Orthotropic Lamina](https://invisiblenetwork.ai/learn/nptel/112104229/9633e05234f3) (YouTube)
47. [Lecture 47: Transformation of Engineering Constants-Part I](https://invisiblenetwork.ai/learn/nptel/112104229/dcff74907b0f) (YouTube)
48. [Lecture 48: Transformation of Engineering Constants-Part II](https://invisiblenetwork.ai/learn/nptel/112104229/22f77e130483) (YouTube)
49. [Lecture 49: Variation of elastic constants with respect to fiber orientation for generally orthotropic lamina](https://invisiblenetwork.ai/learn/nptel/112104229/d6e068617230) (YouTube)
50. [Lecture 50 : Generally orthotropic lamina](https://invisiblenetwork.ai/learn/nptel/112104229/e318bd8b366e) (YouTube)
51. [Lecture 51: Generalized Hooke’s law for anisotropic materials](https://invisiblenetwork.ai/learn/nptel/112104229/9846a1685f9f) (YouTube)
52. [Lecture 52: Generalized Hooke’s law for anisotropic materials](https://invisiblenetwork.ai/learn/nptel/112104229/26e9b3c25590) (YouTube)
53. [Lecture 53: Elastic constants for Specially orthotropic materials](https://invisiblenetwork.ai/learn/nptel/112104229/af345d43722b) (YouTube)
54. [Lecture 54 Elastic constants for Specially orthotropic materials in plane stress](https://invisiblenetwork.ai/learn/nptel/112104229/b15fbdad4258) (YouTube)
55. [Lecture 55: Relation Betweeen Engineering Constants and Elements of Stiffness and Compliance Matrices- Part I](https://invisiblenetwork.ai/learn/nptel/112104229/c55c34e00074) (YouTube)
56. [Lecture 56: Relation Betweeen Engineering Constants and Elements of Stiffness and Compliance Matrices- Part II](https://invisiblenetwork.ai/learn/nptel/112104229/cebb894975a4) (YouTube)
57. [Lecture 57: Stress Strain Relations for A Lamina With Arbitrary Orientation- Part I](https://invisiblenetwork.ai/learn/nptel/112104229/eee3114955c7) (YouTube)
58. [Lecture 58: Stress- Strain Relation for A Lamina With Arbitrary Orientation- Part II](https://invisiblenetwork.ai/learn/nptel/112104229/a3e478674cec) (YouTube)
59. [Lecture 59: Strength of An Orthotropic Lamina](https://invisiblenetwork.ai/learn/nptel/112104229/8fbd86fb6fdf) (YouTube)
60. [Lecture 60: Importance of Sign of Shear Stress in context of Strength of A Unidirectional Lamina](https://invisiblenetwork.ai/learn/nptel/112104229/880e1d47d59c) (YouTube)
61. [Lecture 61: Strain displacement relations for a laminate](https://invisiblenetwork.ai/learn/nptel/112104229/5399e1fbc2e5) (YouTube)
62. [Lecture 62: Stress-strain relations for individual layers of a laminate](https://invisiblenetwork.ai/learn/nptel/112104229/0c985d8e9cf2) (YouTube)
63. [Lecture 63: Resultant forces and moments](https://invisiblenetwork.ai/learn/nptel/112104229/985a27aa7c06) (YouTube)
64. [Lecture 64: Relations between force and moment resultants and mid-plane strains and curvatures](https://invisiblenetwork.ai/learn/nptel/112104229/9cff9624c0e4) (YouTube)
65. [Lecture 65: Physical significance of extensional stiffness matrix \[A\], coupling matrix \[B\] and bending stiffness matrix \[D\] matrices](https://invisiblenetwork.ai/learn/nptel/112104229/a56e73327e3f) (YouTube)
66. [Lecture 66: Lamination sequence (standard laminate code)](https://invisiblenetwork.ai/learn/nptel/112104229/de20a56c1449) (YouTube)
67. [Lecture 67: Calculation of A, B and D Matrices.](https://invisiblenetwork.ai/learn/nptel/112104229/ad51bf35020c) (YouTube)
68. [Lecture 68: Simplification of Stiffness Matrices: Part- I.](https://invisiblenetwork.ai/learn/nptel/112104229/94a710ac15ab) (YouTube)
69. [Lecture 69: Simplification of Stiffness Matrices: Part- II.](https://invisiblenetwork.ai/learn/nptel/112104229/337219a10d9d) (YouTube)
70. [Lecture 70: Quasi-Isotropic Laminates: Part-I.](https://invisiblenetwork.ai/learn/nptel/112104229/83100b63bda2) (YouTube)
71. [Lecture 71: Quasi-Isotropic Laminate. Part-II.](https://invisiblenetwork.ai/learn/nptel/112104229/abd6b0ffb08f) (YouTube)
72. [Lecture 72: Failure of Composite Laminates.](https://invisiblenetwork.ai/learn/nptel/112104229/618fa430dfae) (YouTube)