Young's Modulus and Stiffness

  • #1
Just want clarification on two equations.

So basically, I want to calculate the time period T of the complete oscillation of a cantilever. I use this equation.
hgNhdyiGUWA0f0WGolN4oq1Bx-NZ1iowri5CpO8veyOtjCeHwE5adN_Yd_f4nRQuMtwgetzwGduNQIVJDG8JPhi9RU_xNd3j.png

Is E equal to young's modulus or is it equal to stiffness? If it is equal to stiffness, can I use this equation to calculate the stiffness?
k =
upload_2017-6-6_17-47-32.png


Thank you in advance. :)
 

Answers and Replies

  • #3
In my case, I think it is the resistance of deflection. However, when I search online that is also the definition for Young Modulus. Yet there's these two different equations which is confusing.
 

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