Reference no: EM131057179
Q1. Plot Energy, Fracture Appearance, and Lateral Exp. vs. Temp. (for each material) with measure bars:
For each material: ****Material A**** ####Material B####
Q2. What (value) is the DBTT (at 50% energy difference)?
Q3. What is the DBTT (at Eo = 60 joules or 81 ft-lb)?
Q4. What is the DBTT (using 50% Fracture Appearance)?
Q5. What is the DBTT (using 50% Lateral Expansion)?
Q6. What ‘transition temperature' value do you assign to each material? Please explain your choice?
Material A:
Material B:
Q7. What are your two materials? Mat A:____________ Mat B:___________
Q8. How accurate is your DBTT value? (Compare values with literature via percent error. Explain.).
Material A:
Material B:
Q9. How precise is your DBTT value? (What tolerance do you give it? Explain how you determined it).
Q10. Use two examples (using a different issue for each example) to explain how our test procedure deviates from E23 (and could result in errors).
The following items should be completed for this lab:
1. General: Characterize the impact and fracture behavior of the given material via DBTT.
2. Results: Include tabulated temperature data with graphs
Include the graphs and final values for the Transition Temperature.
3. Discuss: ASTM E23 and how we've used it relevant to our tests.
Issues related to the tolerance and accuracy of the data.
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