ENGRI1110_Lect22_Oct19_posted

ENGRI1110_Lect22_Oct19_posted - ENGRI 1110 Mechanical...

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ENGRI 1110 ENGRI 1110 Mechanical Response Mechanical Response Appendix C: C3-C10, C13-C17, C21-C22, C31-C34 Chapter 15 (very short)
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Bridges Bridges Strong so safety is not compromised Corrosion and fatigue resistance
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Airplanes Airplanes Al alloy or Carbon composites Lightweight Strong Cyclic loading during take-off and landing
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Sports Equipment Sports Equipment Strength Weight Impact strength
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Electronic Devices Electronic Devices Withstand stresses developed during heating and cooling Electronics on flexible substrates need materials that bend
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Optical Fibers Optical Fibers Strength to withstand stresses encountered during application
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Hard Drives Hard Drives Al alloy or glass-ceramic Mechanical durability for operation/rotation at high speeds Lightweight for portability
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MEMS & NEMS MEMS & NEMS Strong at small dimensions Friction problems
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Implants Implants Ti alloys (biocompatible) Strength and toughness Last for many years ocw.mit.edu
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WHAT IS STRONG?
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  • '07
  • GIANNELIS
  • Tensile strength, plastic deformation, System Polymers Low Density Polyethylene Metals Carbon Fiber Composites Carbon nanotubes

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