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


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

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Ali jafry teacher pre calculus pre ap pre calculus carbon nanotube epoxy composites

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)


Ali jafry teacher pre calculus pre ap pre calculus carbon nanotube epoxy composites

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

DAY 1 AND DAY 02


Ali jafry teacher pre calculus pre ap pre calculus carbon nanotube epoxy composites

High-performance applications of carbon fiber composites

Boeing 787

Nose section of Boeing 787

F-22 Fighter


Multifunctional composites

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

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


Ali jafry teacher pre calculus pre ap pre calculus carbon nanotube epoxy composites

Nanoscale Materials

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.


Carbon nanotubes grown on carbon fiber

Fiber

Carbon Nanotubes grown on carbon fiber.


Properties of carbon nanotubes

Properties of Carbon Nanotubes

  • Modulus (Stiffness)

    • 5 x steel

    • 400 x epoxy

  • Electrical conductivity

    • 1000 x copper wire

    • 10^15 x epoxy (Quadrillion times)


Ali jafry teacher pre calculus pre ap pre calculus carbon nanotube epoxy composites

Electrical Conductivity Specimens

Pure epoxy

0.015 wt. % CNT


Day 03 04 05

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

Three-point bending test


Equations for internal shear force bending moment and displacement

Equations for Internal Shear force, Bending Moment, and Displacement


Solving for internal shear and moment equations

Solving for Internal shear and moment equations


To calculate modulus e

To calculate modulus (E),

L = support span

P = Load

δ = displacement

w = specimen width

t = specimen thickness


Shear force and bending moment questions

Shear force and Bending MomentQuestions


Solving the internal shear and moment equations with distributed load

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


Other differential equations

Other Differential Equations

Acceleration & velocity

Other applications (Work, Momentum, Energy)


Teks taks correlation

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

Conclusions

  • Introduce Nanocomposites and carbon nano tube epoxy composites.

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

  • Experiments.

  • Field trips.


Ali jafry teacher pre calculus pre ap pre calculus carbon nanotube epoxy composites

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


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