Numerical Analysis of Impact Deformation and Failure in Nanocomposite plates
- Paper number
IAC-08.C2.3.4
- Author
Prof. Leo Daniel, Massachusetts Institute of Technology, United States
- Year
2008
- Abstract
The analytical problem of transverse impact by a rigid body on a rectangular nanocomposite plates is discussed in this paper. The calculation of displacements, deformations and stresses in conjunction with the characteristics of impact contact interaction is provided using AUTODYN computer code. The analysis of transverse stresses arising under short-time impulse in nanocomposite plates has been performed. The results illustrating dependencies of contact force on time are given for various levels of mass and velocity of the impactor at the prescribed impact energy. The analysis of impact damage zones has been investigated for various cases of impact energy and different mass and velocity combinations. The changing of failure mode increasing the impactor velocity (decreasing the mass) is examined. The dynamic behaviors of nanocomposites under several loading scenarios were modeled using experimental data. These performance charts are useful to determine the optimal geometry to maximize blast resistance for a given mass of nanocomposite beam. The results are promising and can be applicable in analyzing blast load from ship onboard explosions conditions or simulating hypervelocity impact of asteroid on a typical spacecraft shielding.
- Abstract document
- Manuscript document
IAC-08.C2.3.4.pdf (🔒 authorized access only).
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