ABSTRACT
Experimental assessment of buckling resistance of pressurised spherical caps was the subject of the research described in the paper. Specimens in the form of spherical caps were manufactured by a metal spinning technique from steel sheets usually used for deep drawing of metal objects. The shape of every specimen was determined by a 3D scanning technique. Material investigations on coupons cut from steel sheets were performed as well. The pressure was exerted by the air compressor and displacement measurements were accomplished by the optical measurement. Forms of deformations of the whole specimen were registered at every step of pressure exertion till the final postbuckling stage. The comparison of critical pressures obtained in experiments with the results received in numerical simulations performed by COSMOS/M was presented in the paper. The experimental results were compared with buckling resistances presented in Rotter & Schmidt (2013) and proposed by Błażejewski & Marcinowski (2016).
