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# Ali Jafry Teacher Pre Calculus & Pre AP Pre Calculus Carbon Nanotube-Epoxy Composites - PowerPoint PPT Presentation

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).

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Presentation Transcript

Teacher

Pre Calculus &

Pre AP Pre Calculus

Carbon Nanotube-Epoxy Composites

Dr. Dimitris Lagoudas, Dr. Daniel Davis,

Patrick Klein & Lesley Weitz

Madison High School for Meteorology and Space Science

(Magnet School)

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 02

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.

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)

Electrical Conductivity Specimens mutli-wall CNTs)

Pure epoxy

0.015 wt. % CNT

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)

To calculate modulus (E), Displacement

L = support span

δ = displacement

w = specimen width

t = specimen thickness

Shear force and Bending Moment DisplacementQuestions

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)

• Introduce Nanocomposites and carbon nano tube epoxy composites.

• Introducing Engineering concepts like bending of beam, Stress, Strain.

• Experiments.

• Field trips.

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