- The SMAC "simulation assumes that during impact the collision forces are much greater than the tire-road forces and, therefore, tire-road forces are neglected during the collision impulse'
A: NO! That statement about SMAC is 100% in ERROR. That statement demonstrates that the commercial SMAC vendor does not understand how SMAC works. The following is from one of the early 1973 publications on SMAC:
"Computer Program for Reconstruction of Highway Accidents"
From 1973, SAE paper 73-0980 by Ray McHenry of McHenry Software:
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Not sure where your commercial vendor got that erroneous idea.From 1973, SAE paper 73-0980 by Ray McHenry of McHenry Software:
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SMAC is one of the few programs that DOES, and always has, included modeling the tire forces during the collision impulse.