Table of Contents

1. General Principles 2. Tire Models 3. Subdividing Noncollision Trajectories with Splines 4. A Program for Reverse Trajectory Calculation Using Splines 5. Time–Distance Studies 6. Vehicle Data Sources for the Accident Reconstructionist 7. Accident Investigation 8. Obtaining Electronic Data from Vehicles 9. Getting Information from Photographs 10. Measuring Vehicle Crush 11. Filtering Impulse Data 12. Obtaining and Using NHTSA Crash Test Data 13. Analyzing Crash Pulse Data 14. Downloading and Analyzing NHTSA Load Cell Barrier Data 15. Rollover Investigation 16. Rollover Analysis 17. Vehicle Structure Crash Dynamics 18. Impact Mechanics 19. Reconstruction Using Conservation of Momentum and Energy 20. Constant-Stiffness Structures and Crash Plots 21. Crush Energy in Accident Vehicles and Nonlinear Structures 22. Structural Stiffness in Side Impacts 23. Narrow Fixed-Object Collisions 24. Crush Energy in Underride/Override Collisions 25. Low-Speed Impacts 26. Reconstructing Coplanar Collisions, Including Energy Dissipation 27. Checking the Results in Coplanar Collision Analysis 28. Incorporating Electronic Data into Accident Reconstructions 29. Simulation Models and Other Computer Programs

About the Author

Donald E. Struble holds BS, MS, and PhD degrees from California Polytechnic State University, Stanford University, and Georgia Institute of Technology, respectively, all in engineering with an emphasis on structural mechanics. Dr Struble served as an Assistant Professor of Aeronautical Engineering at Cal Poly–San Luis Obispo, Manager of the Research Safety Vehicle program and Senior Vice President of Engineering and Research at Minicars, Inc. in Goleta California, President of Dynamic Science, Senior Associate at Cromack Engineering Associates, and Senior Engineer at Collision Safety Engineering in Phoenix, Arizona. Dr Struble has worked in automotive crashworthiness since 1972 and in accident reconstruction since 1983. He is coholder of a patent on side impact air bags and was the editor of Advances in Side Airbag Systems, published by SAE International in 2005. He is a member of SAE, AAAM, and Sigma Xi, the Scientific Research Society. Formerly, he was the President of Struble–Welsh Engineering in San Luis Obispo, California, from which he is now retired.

John D. Struble holds BS and MS degrees in Mechanical Engineering from the University of Arizona and the Georgia Institute of Technology, respectively. He specializes in automotive and heavy truck accident investigation and reconstruction, and he also has expertise in vehicle structural performance, restraint system analysis, and rollover initiation. Within the area of accident reconstruction, Struble is proficient in momentum, crush energy, and simulation analyses in a wide variety of crash modes. He is also proficient in the extraction of electronic data from accident-involved vehicles and the incorporation of that information into accident reconstruction analyses. Struble served as a Safety Standards Engineer for the National Highway Traffic Safety Administration and Senior Engineer at Struble-Welsh Engineering prior to joining Exponent, Inc., where he is a Principal in the Vehicle Engineering Practice.