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Ali Jafry Teacher Pre Calculus & Pre AP Pre Calculus Carbon Nanotube-Epoxy CompositesPowerPoint Presentation

Ali Jafry Teacher Pre Calculus & Pre AP Pre Calculus Carbon Nanotube-Epoxy Composites

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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

Composites Structures

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

DAY 1 AND DAY 02High-performance applications of carbon fiber composites Structures

Boeing 787

Nose section of Boeing 787

F-22 Fighter

Multifunctional Composites Structures

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)

Nanoscale Materials mutli-wall CNTs)

How Small is Nano Small?

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.

Fiber mutli-wall CNTs)

Carbon Nanotubes grown on carbon fiber.Properties of Carbon Nanotubes mutli-wall CNTs)

- Modulus (Stiffness)
- 5 x steel
- 400 x epoxy

- Electrical conductivity
- 1000 x copper wire
- 10^15 x epoxy (Quadrillion times)

DAY 03, 04 & 05 mutli-wall CNTs)

- 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 mutli-wall CNTs)

Solving for Internal shear and moment equations Displacement

To calculate modulus (E), Displacement

L = support span

P = Load

δ = displacement

w = specimen width

t = specimen thickness

Shear force and Bending Moment DisplacementQuestions

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

Other Differential Equations Distributed Load)

Acceleration & velocity

Other applications (Work, Momentum, Energy)

TEKS / TAKS Correlation Distributed Load)

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 Distributed Load)

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

ACKNOWLEDGEMENTS Distributed Load)

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

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