Nonlinear Dynamic Response of Pressurized Composite Bottles Subjected to Shock Loading.

摘要

A combined experimental and analytical program has been developed to examine the structural dynamic response of pressurized composite bottles subjected to spatially localized loadings. These bottles were constructed from graphite/epoxy, Kevlar/epoxy and fiberglass/epoxy. Some bottles also contained mock solid propellant. The impulsive, exponentially decaying shock loads were applied using blast tube techniques. Dynamic response analyses of the bottles were performed using the finite element code ABAQUS. A damage model was developed to account for material degradations due to the progressive failures of the composite material. The report presents the comparisons between results obtained from experiments and analytical methods. 3 refs., 11 figs., 5 tabs.