If stress is given by equation 1 which implies that stress

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SUMMARY

The discussion centers on the relationship between stress and material properties as defined by two equations: normal stress given by \(\sigma = \frac{f}{A}\) and \(\sigma = E\epsilon\). The first equation indicates that stress is independent of material, while the second suggests a dependency on material properties through Young's modulus (E). The conclusion drawn is that the appearance of both equations does not inherently imply a contradiction, as the dependency of stress on material is established through the function of strain.

PREREQUISITES
  • Understanding of normal stress calculations using the formula \(\sigma = \frac{f}{A}\)
  • Familiarity with material properties, specifically Young's modulus (E)
  • Knowledge of strain and its relationship to stress
  • Basic grasp of mathematical functions and their implications
NEXT STEPS
  • Study the implications of Young's modulus in material science
  • Explore the relationship between stress and strain in different materials
  • Investigate the mathematical properties of functions in physics
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Students in engineering or physics, material scientists, and professionals involved in stress analysis and material properties evaluation will benefit from this discussion.

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Homework Statement


If stress is given by equation 1 which implies that stress is independent of material and the 2nd equation implies it depends on the material. Inst it a contradiction?

Homework Equations


Normal stress is given by [tex]\sigma[/tex]=f/A (1)
and [tex]\sigma[/tex]=E[tex]\epsilon[/tex] (2)




The Attempt at a Solution

 
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Appearance (or lack of appearance) in the same equation doesn't imply dependence. The equation [itex]2=xy[/itex], for example, doesn't imply that the value 2 depends on the value of [itex]x[/itex].

If strain (stress) is a known function, the associated stress (strain) is material dependent.
 

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