MAE4385 - Intrinsically smart cement-matrix composites...

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1 Intrinsically smart cement-matrix composites Topic 5 Reading assignment w Chung, Composite Materials, Ch. 13. w No. 130, under “Publications – cement” in website http://www.wings.buffalo.edu/academic/de partment/eng/mae/cmrl Functions w Structural w Strain/stress sensing w Damage sensing w Temperature sensing w Electromagnetic interference (EMI) shielding w Vibration reduction w Self-heating Applications of strain-stress sensing w Structural vibration control w Traffic monitoring w Weighing (including weighing in motion) w Building facility management w Security Strain/stress sensing w Piezoresistivity w Direct piezoelectricity Piezoresistivity w Change of electrical resistivity due to strain w Gage factor = fractional change in resistance per unit strain (more than 2) w Gage factor up to 700 attained in carbon fiber reinforced cement
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2 With carbon fiber Tension With carbon fiber Tension Without carbon fiber Tension Applications of damage sensing w Structural health monitoring w
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MAE4385 - Intrinsically smart cement-matrix composites...

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