1. ## Static Newtons

I'm having a test done of cutting force, using sharpened wood on bone. The research institute has problems: "It is a debate whether impact loading can be replaced with equivalent static loading. I had similar discussion with an Eng Manager who uses a conservative dynamic amplification factor for designing steel bollards for vehicle impact".

A human arm Force in punching (in .06seconds, probably .5 meter distance)is 2.5kN. If the Mass in increased at 1G by static load to 2.5kN, will the test be accurate?  Reply With Quote

2. Yes, impact force can be approximated and the determined.

The formula is:

F = W + ( 1 + ( 2 h M ) / ( W L ) )

Where: F = Force (in pounds of force) that will be generated when these 4 known values are plugged into the equation:
W = weight (of falling object  in pounds)
h = height of fall (in feet)
M = modulus of material impacted (in pounds)
L = total length of rope (in feet)

ITRS_02_force_eqn_analysis.pdf  Reply With Quote

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