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I'm doing a MEMS project, I have a cantilever beam with a mass at its end, I need to calculate the stress tensor at the beam contact point, there is a piezoelectric matirial there, and I want to calculate the voltage it generates. somebody can please help me and explain how to calculate the stress tensor there, I don't know solid state physics that good, and the last 2 days I was searching the web for this, but couldn't find anything.

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# Stress vector

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