How to Calculate Instantaneous Impact Force in a Pendulum Impact Tester?

[TManer]

TL;DR

I need to calculate instantaneous impact force in the lower dead center of Charpy hammer.

Hi there,
First of all i want to apologize for my english, but i am not from english speaking country, so i am not perfect in it.
Now for the question. I need to calculate instantaneous impact force in the lower dead center of Charpy hammer knowing nominal potential energy in lower dead center, drop heigh and impact velocity. I can also get informations like weight or which material i am going to break (if that helps). I am not saying that i can't get another informations, but i just can't figure out how to calculate this without knowing the impact time from release or acceleration. So how can i calculate this or eventually what another informations do i need?

Thank you for all the answers.

edit: i have searched some posts here, but i have never found any answers

 

[Dr.D]

What you are asking is impossible. There is no way to calculate this.