Hi, I am attempting to design a plastic scrap grinder. To begin my calculations I need to know the force needed to shear a certain area of plastic. After noticing that by using the shear stress equation would result in a huge, unrealistic force, it came to my mind that the plastic will be cut by impact since the grinder is composed of a rotor, rotating at 1200 rpm.(adsbygoogle = window.adsbygoogle || []).push({});

How can I use values of impact energies (Izod / Charpy etc.) to determine how much energy is dissipated in shearing a certain area of this material and thus deriving the required force?

Thanks

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# Designing using Impact Energy of Plastics

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