Sunil K. Sinha is an independent technical consultant based in the USA. In 1977, he earned his Ph.D. in Theoretical and Applied Mechanics from the University of Illinois at Urbana‑Champaign, USA, and has since been active in various applications of fragment containment, target penetration, and nonlinear dynamics, especially numerical simulations of contact-impact events in various aerospace applications in a propulsion system. He retired from GE Aerospace after 31 years, where he specialized in analytical predictions of flight-safety and engine survivability during catastrophic events and extreme conditions. During his tenure at GE, he also worked on several programs and projects with Livermore Software Technology Corporation (LS‑DYNA®), Boeing, Safran, the FAA, and the US Air Force. He has published over 35 papers in the area of impact dynamics and structural vibrations and serves as a technical reviewer for several leading publications.