This highly informative seminar is designed to enhance participants' knowledge and understanding of the reconstruction and biomechanics of vehicle collisions. By reviewing the key elements of crash reconstruction from both the automotive and biomechanical engineering perspectives and learning the common differences in police reconstructions and engineering reconstructions, attendees will learn how automobile engineering issues can contribute to a motor vehicle accident (MVA) or cause specific MVA injuries and how these injuries are used to reconstruct occupant kinematics and forces in a collision. Attendees will also learn when to engage a biomechanics expert (or expert team) in addition to, or instead of, a physician.
- When should I engage a crash reconstruction expert? What background should they have and what do they need to assist you with your case?
- Automobile engineering issues
- Injury Biomechanics I
- High-speed collision injury mechanisms and prevention
9:00 a.m. - 10:00 a.m.
A. When should I engage a crash reconstruction expert? What background should they have and what do they need to assist you with your case?
B. When should I engage a biomechanics expert (or expert team) in addition to, or instead of, a physician?
C. Purpose of crash and injury biomechanics reconstructions.
D. Crash reconstruction 101 Bare Bones Basics
1. Force Magnitude and Direction (vectors)
4. Newton's Law
5. Crash reconstruction overview
a. What's known
b. What's needed
c. Site Inspection
d. Vehicle Inspection
e. Vehicle type and occupant position can influence occupant and driver forces in rear, side, front, offset and multiple
f. Low speed rear end
g. Single vehicle run off the road
10:00 a.m. - 11:00 a.m.
II. Automobile Engineering Issues I
A. Crash reconstruction
2. Delta V
3. Line of site
B. Tire failures
1. Defect, abuse or crash damage
2. Mounting tires
3. Sizing tires
4. Types of tires
1. Energy absorption and crush
2. Roof strength
3. Rollover propensity
4. Vaults and flips
11:00 a.m. - 11:15 a.m.
11:15 a.m. -12:15 p.m.
III. Injury Biomechanics I
A. Overview of Skeletal Tissue Function and Injury Mechanisms
1. Age, Disease, Prior Injuries
2. Reaction times
3. Load Rate Physiologic vs. Impact Loading
4. Overview of Joints
e. Healing Potential
5. Pain How injuries are used to reconstruct occupant kinematics and forces in a collision. (Injuries tell a story about injury mechanisms) Medical Record Review
12:15 p.m. - 1:15 p.m.
Lunch (On Your Own)
1:15 p.m. - 2:30 p.m.
IV. Automobile Engineering Issues II
A. Crash Testing
1. FMV tests and Federal Standards
2. Equivalent Barrier Speed, Speed Change, Delta V
3. Volunteer vs. Cadaver vs. Crash Dummy Testing
B. Occupant restraints
1. Seat belts
2. Air bags
3. Seat back
C. Vehicle dynamics and safety
1. Ride v handling
2. Oversteer v understeer
D. Vehicle component failure
E. Unintended acceleration
2:30 p.m. - 2:45 p.m.
2:45 p.m. - 4:00 p.m.
V. Injury Biomechanics II
B. Extremity Fractures and other injury
D. Overview of Blunt Chest and Abdominal Injury Mechanisms
VI. High-speed Collision Injury Mechanisms
A. Seat belt
C. Dash, Door & Window Impacts
E. Roll over
F. Seat collapse
G. Steering Wheel
4:00 p.m. - 4:30 p.m.
VII. Late Afternoon: Application and Case