McHenry Forum - Crash Reconstruction & Simulation

Q: I’m simulating a heavy truck collision with a dual/tandem rear axle. • The load on each of the two front tires is ~4000 lbs • The load on combined rear axles is ~12000 lbs • There are 8 tires in the combined dual/tandem rear axles To calculate the cornering stiffness for each side of the rear axl...

Distracted Driver Summit Wednesday, September 30 and Thursday, October 1, 2009 U.S. Transportation Secretary Ray LaHood announced a September summit to address the dangers of text-messaging and other distractions behind the wheel. In late September, senior transportation officials, elected official...

please also see the McHenry Software Forum thread on "Itexicated" Drivers

July 10, 2009: GM, Chrysler Bankruptcies Make Targets of Dealers, Suppliers General Motors Corp. and Chrysler Group LLC dealers and suppliers, such as TRW Automotive Holdings Corp., are becoming targets of product-liability lawsuits in the wake of the automakers’ bankruptcies August 27, 2009 Chrysle...

A site dedicated to documenting the crashes that happen to exotic cars. Obviously supports the notion that just because you have enough money to afford an exotic vehicle doesn't mean you know how to drive and/or take care of it!
http://www.wreckedexotics.com/

Some additional links on eyewitness memory:
July 12, 2009: 60 MINUTES: Eyewitness: How Accurate Is Visual Memory?
Transcript of the program
Also from Stanford:
The Problem with Eyewitness Testimony. Commentary on a talk by Fisher & Tversky by Engelhardt html PDF

Interesting articles on the accuracy of human memory which can have an enormous impact on the outcome of a trial. Some quotes for thought from: Witness For the Defense: The Accused, the Eyewitness, and the Expert Who Puts Memory On Trial by Dr. Elizabeth Loftus and Katherine Ketcham, St. Martin's Pr...

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Q: In looking at the NHTSA crash test database site , I've noted several instances where one of the crush measurements was a negative value of significant magnitude. Can anyone explain why they report the value in this manner. All crashes are 30 mph or 35 mph rigid barrier impacts and in reviewing p...

I came across an old post (8/31/98) with some additional information in response to a question on 'MU for rotation': Aug 1998: This is prepared in response to a question on the tire model in SMAC and equations to use in a spreadsheet program. As Monday mornings normally go, the stuff is hitting the ...