Accident Reconstruction Experts
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Vehicle Damage Accident
Reconstruction Expert
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Accident Reconstruction
Crash Data Retrieval
About Our Experts
Accident reconstruction experts are able to approximate speed from crush damage based on indirect comparisons
with controlled testing.  Agencies, such as the National Highway Transportation Safety Administration (NHTSA)
routinely perform crash testing under closely observed and instrumented circumstances.  These tests, while
performed primarily for the purpose of evaluating safety, also provide accident reconstructionists with
stiffness
coeficients
.

Stiffness coefficients relate to the amount of energy necessary to permanently deform a given object.  The stiffness
coefficients from controlled testing, along with the aforementioned crush measurements, allow experts to estimate
the energy dissipated during a real life collision.  Displaced energy can then be related to impact speed.
Damaged Vehicle
Undamaged Vehicle
Many accident reconstruction methods rely upon the precise measurement and evaluation of vehicle damage. In the
illustrations below, a damaged vehicle (post-impact) and undamaged vehicle (exemplar) were measured and then
compared to quantify the
crush caused by a collision.  Once the crush on the deformed vehicle was quantified, an
energy analysis was possible to determine the impact speed of the vehicle.
Undamaged Vehicle (Exemplar)
Damaged Vehicle (Post-Impact)
Accident Reconstruction Crush Measurements
Fraud Investigation
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Crash Data Retrieval Training
Disclaimer: Crash Data Services, LLC and crashdataservices.net provide the information in this web site for informational purposes only. The information is not intended to be legal advice or an expert
opinion and should not be construed as such.  The use of this site does not create a contractor/client relationship with any employee of Crash Data Services, LLC.   Each investigation is different. Case
results depend on a variety of factors unique to each case.  The results of any investigation/reconstruction do not guarantee or predict a similar result in any future case undertaken by Crash Data Services,
LLC
Our experts are always available to fulfill your accident reconstruction needs  Call today for a free consultation:  (847)-217-6644 or reach our reconstruction experts by email