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No Damage does not equal No Injury

Little or No Damage Collisions & Demonstrable Verification of Energy Transferences to Cause Bodily Injury

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By: Patrick Sundby, Accident Investigator

Specializing in Low Speed and Catastrophic Crashes

Mark Studin DC, FASBE(C), DAAPM, DAAMLP

 

In the last two writings we explored how low speed collisions can have substantial energy transfers with minimal (if any) damage.  Here we will discuss the myth of “no damage = no injury” from a vehicle appearance / design point of view and how it relates to injury during a collision.

In order to get into this topic, we need a little history lesson first.  The automotive industry exploded after World War II, with vehicle style being the topic of focus.  The jet age influenced bumpers, headlights, interior components, taillights, even excess in the design – fins.  Something else happened too, for the first time in the automobiles history vehicles were more than “around town” horse-less buggies; the power of the engines and speeds possible dawned a whole new arena – safety.  In the 1960’s vehicle aesthetics began to compromise with safety.  Automotive designers began to consider topics such as; structural integrity, occupant restraints, and crash worthiness.

The industry faced slow growth and change into the 1980’s, each revision or change did bring with it progress and improvement but not enough at any one time to be a huge leap forward.  The changes which were necessary were too cost prohibitive, too experimental, or simply too market risky.  Then in the mid 1980’s a revolution in industry began to take hold – the computer.  The standard personal computer allowed for design changes to be done with much greater efficiency.  Once plugged in and switched on the days spend calculating variables and double checking work became no more complicated than a few clicks.

The computer made it possible for car manufacturers to reduce years of standard research and design practices into just a few months and at the same time it allowed for much more cost effective experimentation and new process development. 

Now that we have completed history 101 let’s discuss the topic of point – “no damage = no injury”

Vehicle design, as an approach or concept, has undergone a substantial overhaul in recent years.  The change has influenced the standard use of bumper covers.  The long standing tradition in automotive design has been to put the bumper outside or separate from the body and to make them of a robust alloy.  (Think about all those classics in “American Graffiti”).  The bumper was designed to be a visual compliment to the overall appearance of the vehicle.  The safety perspective was non-existent with respect to bumpers as they were no more than a sacrificial lamb to save the body from expensive repair. 

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