# Mechanical Behavior of Polymers and Composites - Institution: IIT Delhi - Department: Mechanical Engineering - Teacher: Prof. Naresh V Datla - Level: Undergraduate - Language: English - Subjects: Engineering - Source: [NPTEL](https://nptel.ac.in/courses/112102319) - Licence: [CC BY-NC-SA](https://nptel.ac.in/faq) (Non-commercial use only.) - Syllabus: [at the source](https://nptel.ac.in/courses/112102319) - Who can watch: Tweens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words) The course introduces to the various engineering aspects of polymers and composites. It discusses the unique mechanical properties that these materials offer over metals and how they are related to the structure of the materials. It teaches the mechanics of these materials that include the viscoelastic analysis of polymers and classical lamination theory for composite laminates. It also describes the failure behavior and design aspects of these materials. The course prepares a student to work on research and engineering problems related to polymers and composites. Intended audience: UGs and PGs from Mechanical, Materials, Aerospace, Automotive, Civil, and other related engineering branches. Working professionals associated with polymers and composites. Prerequisites: UG courses in Engineering Mechanics and Solid Mechanics ## Lectures 1. [Introduction to polymers](https://invisiblenetwork.ai/learn/nptel/112102319/8b11b3eb3458) (YouTube) 2. [Polymer structure](https://invisiblenetwork.ai/learn/nptel/112102319/f3642828d526) (YouTube) 3. [Polymer classification](https://invisiblenetwork.ai/learn/nptel/112102319/dc4be72f2e06) (YouTube) 4. [Polymer length, packing and tacticity](https://invisiblenetwork.ai/learn/nptel/112102319/d5ff4542c503) (YouTube) 5. [Glass transition temperature](https://invisiblenetwork.ai/learn/nptel/112102319/d8ea0652f172) (YouTube) 6. [2A Temperature effects, glassy regime](https://invisiblenetwork.ai/learn/nptel/112102319/a41b52394dc3) (YouTube) 7. [2B Viscoelastic, rubbery, viscous, decomposition](https://invisiblenetwork.ai/learn/nptel/112102319/c154fc07eb25) (YouTube) 8. [2C Relaxation and creep tests](https://invisiblenetwork.ai/learn/nptel/112102319/e94bac52fe8d) (YouTube) 9. [2D Failure of polymers](https://invisiblenetwork.ai/learn/nptel/112102319/184fedb9c8a7) (YouTube) 10. [2E Heaviside, Dirac delta, Laplace](https://invisiblenetwork.ai/learn/nptel/112102319/2312ed6d7154) (YouTube) 11. [3A Introduction to linear viscoelasticity](https://invisiblenetwork.ai/learn/nptel/112102319/55428b6e8900) (YouTube) 12. [3B Phenomenological models for linear viscoelasticity](https://invisiblenetwork.ai/learn/nptel/112102319/cdd5ed4b07fa) (YouTube) 13. [3C Maxwell model](https://invisiblenetwork.ai/learn/nptel/112102319/84389f53bc32) (YouTube) 14. [3D Kelvin model](https://invisiblenetwork.ai/learn/nptel/112102319/d6f9749ddeec) (YouTube) 15. [3E Three and four parameter models](https://invisiblenetwork.ai/learn/nptel/112102319/20d4f5f0b919) (YouTube) 16. [3F Generalized Maxwell and Kelvin models](https://invisiblenetwork.ai/learn/nptel/112102319/850d9b5e4236) (YouTube) 17. [4A Boltzman superposition principle](https://invisiblenetwork.ai/learn/nptel/112102319/1da9867ef3b1) (YouTube) 18. [4B Alfrey’s correspondence principle](https://invisiblenetwork.ai/learn/nptel/112102319/b5729bac74bf) (YouTube) 19. [4C Analysis of viscoelastic bars](https://invisiblenetwork.ai/learn/nptel/112102319/b832c1f98750) (YouTube) 20. [4D Analysis of viscoelastic beams](https://invisiblenetwork.ai/learn/nptel/112102319/35eb40a06477) (YouTube) 21. [5A Dynamic mechanical analysis (DMA)](https://invisiblenetwork.ai/learn/nptel/112102319/26a98cfc41be) (YouTube) 22. [5B Dynamic mechanical thermal analysis (DMTA)](https://invisiblenetwork.ai/learn/nptel/112102319/8c915c02e870) (YouTube) 23. [5C Time temperature superposition principle (TTSP)](https://invisiblenetwork.ai/learn/nptel/112102319/3c43af7d2f84) (YouTube) 24. [5D Plastic design consideration and practices](https://invisiblenetwork.ai/learn/nptel/112102319/875f01d96e52) (YouTube) 25. [6A What are composites?](https://invisiblenetwork.ai/learn/nptel/112102319/47633ecf9c2e) (YouTube) 26. [6B Composite materials and types](https://invisiblenetwork.ai/learn/nptel/112102319/51bf456cf423) (YouTube) 27. [6C Composite advantages and applications](https://invisiblenetwork.ai/learn/nptel/112102319/7829ae3c1b4f) (YouTube) 28. [6D Fabrication and other aspects of composites](https://invisiblenetwork.ai/learn/nptel/112102319/beb2c5e1d165) (YouTube) 29. [7A 3D stress and strain components](https://invisiblenetwork.ai/learn/nptel/112102319/2fefb42fa898) (YouTube) 30. [7B Symmetry in stress, strain and stiffness matrix](https://invisiblenetwork.ai/learn/nptel/112102319/633290296c0f) (YouTube) 31. [7C Monoclinic, orthotropic and isotropic materials](https://invisiblenetwork.ai/learn/nptel/112102319/b8b4890a888c) (YouTube) 32. [7D 3D stress strain relation for orthotropic material](https://invisiblenetwork.ai/learn/nptel/112102319/0111ed804f61) (YouTube) 33. [8A Plane stress: Specially orthotropic material](https://invisiblenetwork.ai/learn/nptel/112102319/adbdfdd70652) (YouTube) 34. [8B Plane stress: Generally orthotropic material](https://invisiblenetwork.ai/learn/nptel/112102319/b430b9255ce0) (YouTube) 35. [8C Lamina engineering constants](https://invisiblenetwork.ai/learn/nptel/112102319/48de22588b94) (YouTube) 36. [8D Lamina hygrothermal effects](https://invisiblenetwork.ai/learn/nptel/112102319/3f8a9dce54d2) (YouTube) 37. [8E Lamina fundamental strengths](https://invisiblenetwork.ai/learn/nptel/112102319/e20e2368a411) (YouTube) 38. [9A Lamina failure criteria](https://invisiblenetwork.ai/learn/nptel/112102319/4102173a1e66) (YouTube) 39. [9B Tsai-Hill and Hoffman failure criteria](https://invisiblenetwork.ai/learn/nptel/112102319/f32fc68600f9) (YouTube) 40. [9C Micromechanics: Assumptions, RVE](https://invisiblenetwork.ai/learn/nptel/112102319/ded572011eba) (YouTube) 41. [9D Micromechanics: Stiffness prediction](https://invisiblenetwork.ai/learn/nptel/112102319/723cef6ad01d) (YouTube) 42. [10A Micromechanics: Stiffness and strength](https://invisiblenetwork.ai/learn/nptel/112102319/7c68b2eed572) (YouTube) 43. [10B Macromechanics of laminate](https://invisiblenetwork.ai/learn/nptel/112102319/65d15bd9f052) (YouTube) 44. [10C Classical laminate theory](https://invisiblenetwork.ai/learn/nptel/112102319/cb1c4aeabb5a) (YouTube) 45. [10D Classical laminate theory - II](https://invisiblenetwork.ai/learn/nptel/112102319/aec1a6fc069f) (YouTube) 46. [11A Symmetric laminates, orthotropic laminates](https://invisiblenetwork.ai/learn/nptel/112102319/608b8f109358) (YouTube) 47. [11B Angle-ply, cross-ply and quasi-isotropic laminates](https://invisiblenetwork.ai/learn/nptel/112102319/07fc1ceab42a) (YouTube) 48. [11C Hygrothermal stresses in laminates](https://invisiblenetwork.ai/learn/nptel/112102319/c833d4b6be24) (YouTube) 49. [11D Laminate failure](https://invisiblenetwork.ai/learn/nptel/112102319/a6dab645fc25) (YouTube) 50. [12A Design practices with laminates](https://invisiblenetwork.ai/learn/nptel/112102319/c0ad38cb33ae) (YouTube) 51. [12B Sandwich structures](https://invisiblenetwork.ai/learn/nptel/112102319/4785042fd61d) (YouTube) 52. [12C Composites testing](https://invisiblenetwork.ai/learn/nptel/112102319/9d05aecbf3f4) (YouTube) 53. [12D Joining of composites](https://invisiblenetwork.ai/learn/nptel/112102319/a3382b849100) (YouTube)