Calculating Thermal Expansion and Young's Modulus: A Scientific Inquiry

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SUMMARY

The discussion focuses on calculating thermal expansion coefficients and Young's modulus for various materials, specifically aluminum, steel, and brass. The thermal expansion coefficient for aluminum is established at 2.4 x 10^-5, for steel at 1.2 x 10^-5, and for brass at 2.0 x 10^-5. Young's modulus for steel is confirmed to be 20 x 10^10, correcting a common error of 2.0 x 10^10. Participants seek clarification on specific calculations and constants used in these evaluations.

PREREQUISITES
  • Understanding of thermal expansion coefficients
  • Familiarity with Young's modulus and its significance in material science
  • Basic knowledge of physics equations related to material properties
  • Access to standard material property tables for aluminum, steel, and brass
NEXT STEPS
  • Research the calculation methods for thermal expansion in materials
  • Study the applications of Young's modulus in engineering design
  • Explore the differences in thermal expansion between metals and non-metals
  • Investigate the impact of temperature changes on material properties
USEFUL FOR

Students in physics or engineering, material scientists, and professionals involved in mechanical design or structural analysis will benefit from this discussion.

ice87
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These are really parts of questions.
http://noether.physics.ubc.ca/physics153/assign22k5.pdf

for number 2, I'm getting 264000kPa, but somehow it just doesn't seem rite, so if you guys can check for me, that'll be great. the other one i don't get is the second part of questions 4 where it asks for a time difference. can anyone help me out here? thanks!
 
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*bump* no one?
 
Could you post what you used for the various constants?

Thermal expanson of Al =?
youngs modulus of steel =?
 
thermal expansion of: Al = 2.4*10^-5, steel: 1.2*10^-5, brass: 2.0*10^-5
young's modulus of steel = 20*10^10 (NOT 2.0*10^10)
 

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