Structural Testing of Metal/Composite Conical Strutures with Holes

摘要

Conical structures containing holes were tested for the purpose of determining their structural load carrying capacity. The conical test structures were composed of an aluminum substructure with an outer layer of glass composite material. Holes were machined into all but one of the structures, the holes ranged in circumferential size from 15 to 35 percent of removed structure at the maximum hole diameter. The structures were quasi-statically loaded in tension, compression, and bending until structural failure occurred. Strain and displacement data were collected during the tests. The structural failure modes for each tested shell were then analyzed. Supporting analyses used a finite element structural response code to model the elastic-plastic response of the loaded structures, including structural failure. 1 ref., 29 figs. (ERA citation 14:029113)