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Sea urchin
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Mechanics of Wrinkling, Folding and Crumpling - Lecture 1
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- 1 Bangalore School on Statistical Physics - IX
- 2 Mechanics of wrinkling, folding and crumpling Lecture 01
- 3 Bangalore Statistical Physics School
- 4 Objects that are flexible purely for geometric reasons sheets, filaments and ribbons make an overwhelming variety of patterns in nature and in the technological world.
- 5 Sea urchin
- 6 Sharon, Swinney, Marder
- 7 Fabric & Earth's Skin
- 8 Small deformations: wrinkles, ripples
- 9 Overall goals of our discussion
- 10 Instability not as "failure" but technological tool
- 11 Plan
- 12 Things I will not do
- 13 Stress
- 14 Pressure normal stresses - diagonal
- 15 Body forces
- 16 Stresses
- 17 Torque balance
- 18 Symmetric
- 19 Material constant -Lame constants
- 20 Young's modulus
- 21 Bend
