I can calculate only UTS but some questions I don't know how to attempt

  • Thread starter Thread starter Martin TSK
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Discussion Overview

The discussion revolves around calculating Ultimate Tensile Strength (UTS) in the context of a specific problem involving load and area. Participants are attempting to clarify their understanding and approach to the calculations, with a focus on mathematical representation and presentation of work.

Discussion Character

  • Homework-related, Mathematical reasoning, Technical explanation

Main Points Raised

  • One participant calculates UTS as 200 Megapascals using a formula involving maximum load and area, specifically citing a load of 90000 N and an area of 0.00045 m².
  • Another participant questions the area calculation, asking for clarification on the area when the diameter is given as 12 mm.
  • A participant requests improved presentation of mathematical work, suggesting the use of LaTeX for clarity and readability, while expressing difficulty in interpreting handwritten submissions.

Areas of Agreement / Disagreement

The discussion remains unresolved, with multiple participants seeking clarification on calculations and presentation methods. There is no consensus on the area calculation or the best way to present mathematical work.

Contextual Notes

Limitations include potential misunderstandings in area calculation based on diameter, and challenges in interpreting handwritten mathematical work due to presentation issues.

Martin TSK
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Homework Statement
Hello guys. Please help me how to attempt this question.
The maximum load in a tensile test on a mild steel specimen is 90 kN. If the test piece is 12 mm in diameter, calculate
a) the UTS
b) the working stress
c) the greatest allowable load on 25 mm in diameter
d) state Hooke's law
(Take factor of safety as 3)
Relevant Equations
Uts = max Load/Area
20220825_121040.jpg
 
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What progress have you made in answering the question, so far ? Show some work.
 
hmmm27 said:
What progress have you made in answering the question, so far ? Show some work.

UTS = Max load/Area
Uts =90000N/0.00045 m²
UTS =200Megga N/m²
 
If 12 mm is the diameter, what is the area?
 
hmmm27 said:
What progress have you made in answering the question, so far ? Show some work.
20220901_073757.jpg
Sideways 01_Upright02.jpg
 
Last edited by a moderator:
@Martin TSK -- Please stop posting your handwritten work with dim sideways pictures. They are unreadable; I have processed your latest image above to make it upright and improve the contrast, but it is still very hard to read and comment on your work.

Instead, please look at the "LaTeX Guide" link at the top of the Edit window. Please post your math work in LaTeX so it is legible and easier for us to quote and comment on. Thank you.
 

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