Ali Jafry Teacher Pre Calculus & Pre AP Pre Calculus Carbon Nanotube-Epoxy Composites Dr. Dimitris Lagoudas, Dr. Daniel Davis, Patrick Klein & Lesley Weitz.

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Presentation transcript:

Ali Jafry Teacher Pre Calculus & Pre AP Pre Calculus Carbon Nanotube-Epoxy Composites Dr. Dimitris Lagoudas, Dr. Daniel Davis, Patrick Klein & Lesley Weitz Faculty Advisors Madison High School for Meteorology and Space Science (Magnet School)

Texas Institute of Intelligent Bio Nano Materials & Structures for Aerospace Vehicles (TIIMS) Aerospace Engineering at Texas A & M University

DAY 1 AND DAY 02 Composites Application of Composites Introduction to Nano Composites Application of Nano Composites and Nano technology Pre test Students will engage in: Cooperative learning Peer tutoring Whole group instruction Hands on activities Math and Science Integration

High-performance applications of carbon fiber composites Boeing 787 F-22 Fighter Nose section of Boeing 787

Multifunctional Composites Multifunctional composites have good mechanical properties and at least one other property of interest (e.g. electrical, thermal…) in a given application.

Multi-wall CNT (we use a mixture of single wall and mutli-wall CNTs)

How many carbon nanotubes does it take to stretch across the width of a human hair? A human hair is about 100 micrometers. A carbon nanotube is about 5 nanometers That’s 20,000 carbon nanotubes per human hair. Nanoscale Materials How Small is Nano Small?

Carbon Nanotubes grown on carbon fiber. Fiber

Properties of Carbon Nanotubes Modulus (Stiffness)  5 x steel  400 x epoxy Electrical conductivity  1000 x copper wire  10^15 x epoxy (Quadrillion times)

Electrical Conductivity Specimens Pure epoxy wt. % CNT

DAY 03, 04 & 05 Introduce engineering concepts -stress, strain, elasticity etc. Three-point bending test to measure stiffness (modulus) of material. Shear Force, Bending moment. Differential Equations.

Three-point bending test

Equations for Internal Shear force, Bending Moment, and Displacement

Solving for Internal shear and moment equations

To calculate modulus (E), L = support span P = Load δ = displacement w = specimen width t = specimen thickness

Shear force and Bending Moment Questions

Solving the Internal Shear and Moment Equations (with Distributed Load)

Other Differential Equations Acceleration & velocity Other applications (Work, Momentum, Energy)

TEKS / TAKS Correlation Make quantitative observations and measurements with precision. (2B) Organize, analyze, evaluate, make inferences, and predict trends from data. (2C) Graph data to observe and identify relationships between variables(2D) Develop and interpret a free-body diagram for force analysis (4E)

Conclusions Introduce Nanocomposites and carbon nano tube epoxy composites. Introducing Engineering concepts like bending of beam, Stress, Strain. Experiments. Field trips.

ACKNOWLEDGEMENTS I would like to extend appreciation to the following Dr. Dimitris Lagoudas, Dr. Daniel Davis, Patrick Klein Lesley Weitz Jeff Cowley E 3 team and staff Texas A & M Engineering National Science Foundation