Computational Analysis of Blast Loaded Composite Cylinders
Explosion-resistant containers and chambers show promise for the safe storage and disposal of explosive materials and munitions. Light-weight explosion proof vessels, that are made of fiber-reinforced composite materials, are of specific interest, as their decreased mass allows for an ease in transportation. When developing fiber-reinforced composite structures for dynamic loading, efficient and reliable computational analysis techniques are required. The objectives of this study deal with developing a computational methodology that can be implemented when designing blast loaded composite structures. Specifically, efficient analysis procedures to predict large scale deformation and composite failure in dynamically loaded composite structures are developed for use with LSTC's LS-DYNA. In the process of developing the modeling methodology, a survey of the blast modeling methods available within LS-DYNA is completed and a recommendation is made considering both accuracy and computational cost. The developed methods are then used to simulate the blast loading and response of small, hollow composite cylinders, and the measured results of instrumented explosive tests are used for model validation.
Composite materials; Computational modeling; Finite element analysis (FEA)
Nelson, S. M.,
O'Toole, B. J.
Computational Analysis of Blast Loaded Composite Cylinders.
International Journal of Impact Engineering, 119