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I'm an undergrad. student trying to do research. Today was my first day working with grad students and one grad student gave me something to find. We have a cantilever beam made of aluminum nitride (AlN). The only things known about the beam are the dimensions and young's modulus. He wants to find the max load that could be applied to the free end of the beam without the beam breaking. I looked in my mechanics of materials book and found a formula for the displacement of the free end but I don't know how to find the max load. I don't even know if this problem is doable given that we only know the material's young's modulus. I'll try to find some online information and read some more in the mechanics of materials book. In the mean time, any help would be greatly appreciated.