1. ABAQUS Manuals (1997, Version 5.7, Hibbitt, Karlsson & Sorensen, Inc.
2. Bisagni, C. (1998, “Energy absorption of riveted structures”, Proceeding of International Crashworthiness Conference IJCRASH98, Dearborn, MI, pp. 420‐31.
3. Giavotto, V., Caprile, C. and Sala, G. (1988, “The design of helicopter crashworthiness”, AGARD, 66th Meeting of the Structures and Material Panel, Energy Absorption of Aircraft Structure as an Aspect of Crashworthiness, Luxembourg, pp. 6.1‐6.9.
4. Hajela, P. and Lee, E. (1997, “Topological optimization of rotorcraft subfloor structures for crashworthiness considerations”, Computers & Structures, Vol. 64 No. 1‐4, pp. 65‐76.
5. Jones, N. (1989, Structural Impact, Cambridge University Press, Cambridge.