Mechanical Behavior Of Polymers And Composites
54 videos • 23,830 views • by IIT Delhi July 2018
1
"Mechanical Behavior of Polymers and Composites - Intro”
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2
Introduction to polymers
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3
Polymer structure
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4
Polymer classification
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5
Polymer length, packing and tacticity
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6
Glass transition temperature
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2A Temperature effects, glassy regime
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2B Viscoelastic, rubbery, viscous, decomposition
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2C Relaxation and creep tests
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2D Failure of polymers
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11
2E Heaviside, Dirac delta, Laplace
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12
3A Introduction to linear viscoelasticity
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3B Phenomenological models for linear viscoelasticity
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14
3C Maxwell model
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15
3D Kelvin model
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3E Three and four parameter models
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17
3F Generalized Maxwell and Kelvin models
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4A Boltzman superposition principle
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4B Alfrey’s correspondence principle
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20
4C Analysis of viscoelastic bars
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4D Analysis of viscoelastic beams
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5A Dynamic mechanical analysis (DMA)
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5B Dynamic mechanical thermal analysis (DMTA)
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5C Time temperature superposition principle (TTSP)
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5D Plastic design consideration and practices
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6A What are composites?
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6B Composite materials and types
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6C Composite advantages and applications
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6D Fabrication and other aspects of composites
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7A 3D stress and strain components
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7B Symmetry in stress, strain and stiffness matrix
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7C Monoclinic, orthotropic and isotropic materials
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7D 3D stress strain relation for orthotropic material
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8A Plane stress: Specially orthotropic material
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8B Plane stress: Generally orthotropic material
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8C Lamina engineering constants
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8D Lamina hygrothermal effects
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8E Lamina fundamental strengths
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9A Lamina failure criteria
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40
9B Tsai-Hill and Hoffman failure criteria
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9C Micromechanics: Assumptions, RVE
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9D Micromechanics: Stiffness prediction
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10A Micromechanics: Stiffness and strength
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44
10B Macromechanics of laminate
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45
10C Classical laminate theory
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10D Classical laminate theory - II
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11A Symmetric laminates, orthotropic laminates
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48
11B Angle-ply, cross-ply and quasi-isotropic laminates
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49
11C Hygrothermal stresses in laminates
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11D Laminate failure
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51
12A Design practices with laminates
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12B Sandwich structures
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12C Composites testing
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12D Joining of composites
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