Comparison for Experimental vs Literature values for alumnium

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SUMMARY

The discussion centers on the discrepancies observed between experimental values obtained from a three-point bend test and tensile test on as-rolled aluminum and literature values sourced from CES software. Key differences were noted, particularly in the 0.2% proof stress. The conversation emphasizes the importance of comparing identical aluminum alloys and heat treatments to ensure accurate assessments. Potential experimental inaccuracies and misreadings are also highlighted as contributing factors to the observed variances.

PREREQUISITES
  • Understanding of aluminum alloys and their properties
  • Familiarity with tensile testing and three-point bend testing methodologies
  • Knowledge of CES software for material property comparison
  • Basic principles of material science and mechanical testing
NEXT STEPS
  • Research the differences between various aluminum alloys and their mechanical properties
  • Learn about common sources of error in tensile testing and three-point bend testing
  • Explore advanced features of CES software for accurate material property analysis
  • Investigate the effects of heat treatment on aluminum properties
USEFUL FOR

Materials scientists, mechanical engineers, students conducting experiments on aluminum, and professionals involved in material testing and analysis.

uzman1243
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Homework Statement


I did a 'three point bend test' and a 'tensile test' on the material as-rolled Aluminium.

I then messured and calculated the proepties of the metal and compared it with the literature values found on a CES software. Unfortunately, I can find significant differences for the following:

attachment.php?attachmentid=68230&stc=1&d=1396422257.png


Can you give me some of the possible reasons for the difference between the experimental and literature, especially for the 0.2% proof of stress?
 

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Aluminum comes in a variety of different alloys and heat treatments. I hope you have compared like with like, in terms of the material used in the experiment versus the material properties obtained from the literature search.
 
SteamKing said:
Aluminum comes in a variety of different alloys and heat treatments. I hope you have compared like with like, in terms of the material used in the experiment versus the material properties obtained from the literature search.

Exact material. Obviously the experiment had some sort of misreading and other inaccuracies. I want to know these reasons and how it affects the properties
 

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