McHenry Forum - Crash Reconstruction & Simulation

Here's an example of the 'annual update fee' for Pc-Crash. If you are faced with an opponent, would you DARE use an older version of the software and wonder/worry whether the results remain the same? each of the updates have come out approximately annually. NOTE: other vendors like Engineering Dynam...

Some FAQ on msmac3D Technology & Licensing. Please send any additional Questions to msmac3D@mchenrysoftware.com Q: Do you have a Demo Program? A: We currently don’t have a demo program. The logistics and all that take too much time and energy. Basically once a license ordered we do provide 2 wee...

A paper recently published in the Accident Reconstruction Journal (ARJ) 178 July-August 2020 COMMERCIAL BUS SIDE-SLIDE AND STATIC ROLLOVER TESTS By Steve Anderson and Dave Stopper Includes presentation of some tests on drag factor for buses on various surfaces Bus Slide Coefficients.jpg To get ARJ j...

Just made aware of a similar page from our Canadian neighbors: From the MEA Forensic website: Collision reconstruction : A good checklist to consider if you or someone you know has been in a crash: General Collision Information Where and when (date, time) did the collision occur? How many vehicles w...

Q: I am trying to determine how to download the ATB software. I tried contacting Cecilia Harrison (cecelia.harrison@wpafb.af.mil) but the email is no longer valid. Any help would be appreciated. Thanks! A: I am not sure who might be in charge of the program. Note in response above there is an order ...

Q: Is there a standard rate for crash test videos? I have a crash test video that was performed in 1998 with high speed cameras. The video itself is 29.97 frames per second. It shows the crash in real time and then slowed down considerably from the various angles. I’m wondering if there is a standar...

August 2020: added Questions/Comments to the title and discussion so ALL KNOW that anything sent is kept in confidence.

Aug 2020: Came across a 1990 letter from NHTSA clarifying information on SMAC and CRASH.
We've added it above to the summary of information on SMAC and CRASH to clarify the NHTSA position:
See information adjacent to:

• 1990

above

NOTE: This is a somewhat follow-up information on pc-crash. We recently posted PC-CRASH: How Many % May An Investigator Be Wrong with pc-crash? which was posted in response to that question being posted on another forum (see the link above for details) Recently a colleague paid for a pc-crash train...

Feb 2022: The following was split from the topic More Discussion on issues with PC-CRASH type simplified momentum solutions from August 2020 to Dec 2020. We are in the process of updating a discussion of What is Validation and so wanted this section with the reporting on validation results for pc-cr...