- #1
MEriksson
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Hello, I'm trying to estimate how long the impact of a steel ball hitting a plastic box would be.
The actual case: you drop a steal ball d=0.51mm, m=0.54kg from h=0.74m onto a box made of plastic, the impact speed is 3.86m/s and force 4J. I want to know the deceleration speed during impact or how long the impact lasts so i can use F=ma, to get the other. Anyone have a estimate for these numbers?
The reason: I'm comparing UL standard 60068-2-27 with IEC standard 60950-1 :P
The actual case: you drop a steal ball d=0.51mm, m=0.54kg from h=0.74m onto a box made of plastic, the impact speed is 3.86m/s and force 4J. I want to know the deceleration speed during impact or how long the impact lasts so i can use F=ma, to get the other. Anyone have a estimate for these numbers?
The reason: I'm comparing UL standard 60068-2-27 with IEC standard 60950-1 :P