1. Postdoctoral Research Engineer, Midwest Roadside Safety Facility, Univ. of Nebraska-Lincoln, Lincoln, NE 68588 (corresponding author).
2. Research Professor, Midwest Roadside Safety Facility, Univ. of Nebraska-Lincoln, Lincoln, NE 68588.
3. Professor, Dept. of Mechanical and Materials Engineering, Univ. of Nebraska-Lincoln, Lincoln, NE 68588.
4. Research Development Engineer, Kansas Dept. of Transportation, 700 SW Harrison St., Topeka, KS 66603.
5. Vice President, BG Consultants Engineers, Architects & Surveyors, 4806 Vue Du Lac Pl., Manhattan, KS 66503.
6. President, Kansas Structural Composites, 553 S Front St., Russell, KS 67665.