scholarly journals Analysis of Low Speed Vehicle Impact Damage

Author(s):  
Lester R. Reekers

Disputes resulting from low-velocity vehicular collisions have increased dramatically in number during the recent decade. According to the California State Insurance Department, staged auto accidents have risen at an average annual rate of 38% since 1986. Hard figures are not available, but most experts say 10% to 15% of all claim dollars paid out on car insurance result from some form of fakery. According to the Insurance Information Institute, that works out to between $5.4 billion and $8.1 billion of the $54 billion in claims paid last year. An Insurance Research Council study shows that in 1989 insurers paid 55.7 injury claims in California for every 100 auto property damage claims, and 57% of those making bodily injury claims were represented by an attorney. Litigators frequently utilize the assistance of the forensic engineering expert to resolve the legal issues involved in these disputes. Available reference materials for the analysis may be minimal, consisting only of c

2016 ◽  
Vol 827 ◽  
pp. 145-148 ◽  
Author(s):  
Sneha Samal ◽  
David Reichmann ◽  
Iva Petrikova ◽  
Bohdana Marvalova

Low velocity impact strength of the fabric reinforced geocomposite has investigated in this article. Various fabrics such as carbon and E-glass were considered for reinforcement in geopolymer matrix. The primary two parameters such as low velocity, impact damage modes are explained on the E-glass and carbon based fabric geocomposite. The onset mode of damage to failure mode is examined through C-scan analysis. The quality of the composite is observed using c-scan with acoustic vibration mode of sensor before and after impact test. Then the effect of fabric and matrix on the impact behaviour is discussed. Residual strength of the composite is measured to determine post impact behaviour. It has been observed that resistance properties of E-glass reinforced composite is better than carbon fabric reinforced composite.


Author(s):  
Roger L. Boyell

This Paper Summarizes The Author Investigations Into 12 Different Complaints Of Electrical Contactausing Bodily Injury Or Death. Numerous Photographs Are Provided For Clarification. The 12 Scenariosange From Obvious To Unforeseeable, And From Expected To Impossible.


Author(s):  
Jerry S. Ogden

The Forensic Engineering Analysis Of Bicycle-Vehicle Incidents Presents Its Own Unique Set Of Challenges. Often, The Forensic Engineer Is Faced With A Limited Data Set For Determining Vehicle Impact Speed From The Physical Evidence Produced By A Bicycle Collision With An Automobile, Which May Not Be Of Issue For A Vehicle-To-Vehicle Collision At Similar Speeds. This Paper Analyzes A Collision Between A Light Duty Pickup Pulling A Tandem Axle Utility Trailer And A Bicycle Ridden By A Minor Child. There Were Allegations That The Pickup Was Traveling At A High Speed Above The Speed Limit, As Well As Passing Another Vehicle At The Time Of The Incident. In Order To Accurately And Dependably Determine The Speed Of The Ford F350 Pickup Involved In This Incident Event, This Forensic Engineer Elected To Recreate The Vehicle Locked Wheel Skidding Evidence That Was Produced During The Incident Event And Photographically Recorded By Police Investigators. The Dynamic Skid Testing Technique, Test Equipment, And General Test Procedures Used To Accurately Determine Vehicle Speeds For This Incident Event, And How It Can Be Applied To Similar Collision Events Are Discussed In This Paper


2013 ◽  
Vol 710 ◽  
pp. 136-141
Author(s):  
Li Jun Wei ◽  
Fang Lue Huang ◽  
Hong Peng Li

Sandwich composite laminates structure is a classic application of composite material on actual aircraft structural. Dealing with low-velocity impact damage and residual compressive strength of sandwich composite laminates, explicit finite element method of ABAQUS/Explicit software was adopted to simulate low-velocity impact and compression process. Impact response and invalidation on compression between sandwich composite laminates with different core materials and regular composite laminates were compared. The simulation results indicated that softer core materials can absorb more impact energy, reduce the structure damage and enhance the residual compressive strength after impact.


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