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85 videos available, ordered by video number.
| Showing 11 - 20 of 85 videos | Page 1 2 3 4 5 6 7 .. 9 | Previous | Next |
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video 25 : A notched-bar impact test of copper carried out at room temperature. |
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video 26 : Part of a series of videos showing the glass transition in polymers, and the resulting change in energy dissipation on impact: Video at one tenth actual speed of a rubber ball bouncing at 25° C (well above Tg), showing that the ball loses little energy as it bounces. From TLP The Glass Transition in Polymers |
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video 27 : Part of a series of videos showing the glass transition in polymers, and the resulting change in energy dissipation on impact: Video at one tenth actual speed of a rubber ball bouncing at -50° C (just above Tg), showing that more of the elastic strain energy is dissipated, and the ball does not bounce as high. From TLP The Glass Transition in Polymers |
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video 28 : Part of a series of videos showing the glass transition in polymers, and the resulting change in energy dissipation on impact: Video at one tenth actual speed of a rubber ball bouncing at -70° C (close to Tg), showing that nearly all the energy is dissipated, and the ball barely bounces at all. From TLP The Glass Transition in Polymers |
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video 29 : Part of a series of videos showing the glass transition in polymers, and the resulting change in energy dissipation on impact: Video at one tenth actual speed of a rubber ball bouncing at -190° C (well below Tg), showing that as the temperature is reduced below Tg, there is not enough energy for conformational changes to occur, and the ball becomes glassy. From TLP The Glass Transition in Polymers |
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video 30 : Part of a series of videos showing the glass transition in polymers, and the resulting change in energy dissipation on impact: Close up video at one tenth actual speed of ball bouncing well above Tg (i.e. when rubbery). The conformation of the polymer chains changes, and the deformation of the ball can clearly be seen. From TLP The Glass Transition in Polymers |
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video 31 : Part of a series of videos showing the glass transition in polymers, and the resulting change in energy dissipation on impact: Close up video at one tenth actual speed of ball bouncing near Tg. From TLP The Glass Transition in Polymers |
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video 32 : Part of a series of videos showing the glass transition in polymers, and the resulting change in energy dissipation on impact: Close up video at one tenth actual speed of ball bouncing well below Tg (i.e. when glassy). The conformation is frozen, so it is only the interatomic bonds that are strained. The macroscopic deformation is much less and is not observable in the video. From TLP The Glass Transition in Polymers |
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video 33 : Silly putty exhibits a glass transition. A ball of putty is left at rest at room temperature. It slowly deforms plastically under its own weight. From TLP The Glass Transition in Polymers |
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video 34 : Silly putty striking the ground after dropping from a height of 1m, showing elastic deformation. From TLP The Glass Transition in Polymers |
| Showing 11 - 20 of 85 videos | Page 1 2 3 4 5 6 7 .. 9 | Previous | Next |
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